├── AndroidFaceMask.jpg ├── AndroidFaceMask ├── .gitignore ├── app │ ├── .gitignore │ ├── build.gradle │ ├── proguard-rules.pro │ └── src │ │ ├── androidTest │ │ └── java │ │ │ └── com │ │ │ └── example │ │ │ └── androidfacemask │ │ │ └── ExampleInstrumentedTest.java │ │ ├── main │ │ ├── AndroidManifest.xml │ │ ├── assets │ │ │ └── face_mask_detection.tflite │ │ ├── java │ │ │ └── com │ │ │ │ └── example │ │ │ │ └── androidfacemask │ │ │ │ ├── Config.java │ │ │ │ ├── facemask │ │ │ │ ├── Box.java │ │ │ │ └── FaceMask.java │ │ │ │ ├── util │ │ │ │ ├── ImageUtils.java │ │ │ │ └── comparator │ │ │ │ │ └── CompareSizesByArea.java │ │ │ │ └── view │ │ │ │ ├── AutoFitTextureView.java │ │ │ │ ├── CameraActivity.java │ │ │ │ ├── CameraConnectionFragment.java │ │ │ │ ├── FaceActivity.java │ │ │ │ ├── OverlayView.java │ │ │ │ ├── TextToSpeechActivity.java │ │ │ │ └── components │ │ │ │ ├── BorderedText.java │ │ │ │ └── ErrorDialog.java │ │ └── res │ │ │ ├── drawable-v24 │ │ │ └── ic_launcher_foreground.xml │ │ │ ├── drawable │ │ │ └── ic_launcher_background.xml │ │ │ ├── layout │ │ │ ├── activity_camera.xml │ │ │ └── camera_connection_fragment.xml │ │ │ ├── mipmap-anydpi-v26 │ │ │ ├── ic_launcher.xml │ │ │ └── ic_launcher_round.xml │ │ │ ├── mipmap-hdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-mdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ │ └── values │ │ │ ├── colors.xml │ │ │ ├── dimens.xml │ │ │ ├── strings.xml │ │ │ └── styles.xml │ │ └── test │ │ └── java │ │ └── com │ │ └── example │ │ └── androidfacemask │ │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle │ └── wrapper │ │ ├── gradle-wrapper.jar │ │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle ├── LICENSE └── README.md /AndroidFaceMask.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ma-Dan/AndroidFaceMask/07e3fe09f5b509a77249ba586d389e3164506232/AndroidFaceMask.jpg -------------------------------------------------------------------------------- /AndroidFaceMask/.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 29 5 | buildToolsVersion "29.0.2" 6 | defaultConfig { 7 | applicationId "com.example.androidfacemask" 8 | minSdkVersion 18 9 | targetSdkVersion 29 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | compileOptions { 21 | sourceCompatibility JavaVersion.VERSION_1_8 22 | targetCompatibility JavaVersion.VERSION_1_8 23 | } 24 | aaptOptions { 25 | noCompress "tflite" 26 | noCompress "lite" 27 | } 28 | } 29 | 30 | dependencies { 31 | implementation fileTree(dir: 'libs', include: ['*.jar']) 32 | implementation 'androidx.appcompat:appcompat:1.1.0' 33 | implementation 'androidx.constraintlayout:constraintlayout:1.1.3' 34 | implementation 'com.google.android.material:material:1.0.0' 35 | testImplementation 'junit:junit:4.12' 36 | androidTestImplementation 'androidx.test.ext:junit:1.1.0' 37 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 38 | implementation 'org.tensorflow:tensorflow-lite:+' 39 | } 40 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/androidTest/java/com/example/androidfacemask/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask; 2 | 3 | import android.content.Context; 4 | 5 | import androidx.test.platform.app.InstrumentationRegistry; 6 | import androidx.test.ext.junit.runners.AndroidJUnit4; 7 | 8 | import org.junit.Test; 9 | import org.junit.runner.RunWith; 10 | 11 | import static org.junit.Assert.*; 12 | 13 | /** 14 | * Instrumented test, which will execute on an Android device. 15 | * 16 | * @see Testing documentation 17 | */ 18 | @RunWith(AndroidJUnit4.class) 19 | public class ExampleInstrumentedTest { 20 | @Test 21 | public void useAppContext() { 22 | // Context of the app under test. 23 | Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); 24 | 25 | assertEquals("com.example.androidfacemask", appContext.getPackageName()); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 18 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/assets/face_mask_detection.tflite: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ma-Dan/AndroidFaceMask/07e3fe09f5b509a77249ba586d389e3164506232/AndroidFaceMask/app/src/main/assets/face_mask_detection.tflite -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/Config.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask; 2 | 3 | public interface Config { 4 | String LOGGING_TAG = "FaceMask"; 5 | } 6 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/facemask/Box.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.facemask; 2 | 3 | import android.graphics.Point; 4 | import android.graphics.Rect; 5 | 6 | import static java.lang.Math.max; 7 | 8 | /** 9 | * 人脸框 10 | */ 11 | public class Box { 12 | public float[] box; // left:box[0],top:box[1],right:box[2],bottom:box[3] 13 | public float score; // probability 14 | public int index; 15 | public boolean deleted; 16 | public int cls; 17 | public String title; 18 | 19 | public Box() { 20 | box = new float[4]; 21 | deleted = false; 22 | title = ""; 23 | } 24 | 25 | public float left() { 26 | return box[0]; 27 | } 28 | 29 | public float right() { 30 | return box[2]; 31 | } 32 | 33 | public float top() { 34 | return box[1]; 35 | } 36 | 37 | public float bottom() { 38 | return box[2]; 39 | } 40 | 41 | public float width() { 42 | return box[2] - box[0] + 1; 43 | } 44 | 45 | public float height() { 46 | return box[3] - box[1] + 1; 47 | } 48 | 49 | // 转为rect 50 | public Rect transform2Rect() { 51 | Rect rect = new Rect(); 52 | rect.left = (int)box[0]; 53 | rect.top = (int)box[1]; 54 | rect.right = (int)box[2]; 55 | rect.bottom = (int)box[3]; 56 | return rect; 57 | } 58 | 59 | // 面积 60 | public int area() { 61 | return (int)(width() * height()); 62 | } 63 | } 64 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/facemask/FaceMask.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.facemask; 2 | 3 | import android.content.res.AssetManager; 4 | import android.graphics.Bitmap; 5 | import android.util.Log; 6 | 7 | import org.tensorflow.lite.Interpreter; 8 | 9 | import java.io.IOException; 10 | import java.util.ArrayList; 11 | import java.util.HashMap; 12 | import java.util.Map; 13 | import java.util.Vector; 14 | 15 | import com.example.androidfacemask.util.ImageUtils; 16 | 17 | import static com.example.androidfacemask.Config.LOGGING_TAG; 18 | 19 | /** 20 | * 口罩检测 21 | */ 22 | public class FaceMask { 23 | private static final String MODEL_FILE = "face_mask_detection.tflite"; 24 | 25 | public static final int INPUT_IMAGE_SIZE = 260; // 需要feed数据的placeholder的图片宽高 26 | public static final float CONF_THRESHOLD = 0.5f; // 置信度阈值 27 | public static final float IOU_THRESHOLD = 0.4f; // IoU阈值 28 | 29 | private static final int[] feature_map_sizes = new int[] {33, 17, 9, 5, 3}; 30 | private static final float[][] anchor_sizes = new float[][] {{0.04f, 0.056f}, {0.08f, 0.11f}, {0.16f, 0.22f}, {0.32f, 0.45f}, {0.64f, 0.72f}}; 31 | private static final float[] anchor_ratios = new float[] {1.0f, 0.62f, 0.42f}; 32 | 33 | private float[][] anchors; 34 | 35 | private Interpreter interpreter; 36 | 37 | public FaceMask(AssetManager assetManager) throws IOException { 38 | Interpreter.Options options = new Interpreter.Options(); 39 | options.setNumThreads(4); 40 | interpreter = new Interpreter(ImageUtils.loadModelFile(assetManager, MODEL_FILE), options); 41 | generateAnchors(); 42 | } 43 | 44 | public Vector detectFaceMasks(Bitmap bitmap) { 45 | int[] ddims = {1, INPUT_IMAGE_SIZE, INPUT_IMAGE_SIZE, 3}; 46 | float[][][][] datasets = new float[ddims[0]][ddims[1]][ddims[2]][ddims[3]]; 47 | 48 | datasets[0] = ImageUtils.normalizeImage(bitmap); 49 | 50 | float[][][] loc = new float[1][5972][4]; 51 | float[][][] cls = new float[1][5972][2]; 52 | 53 | Map outputs = new HashMap<>(); 54 | outputs.put(interpreter.getOutputIndex("loc_branch_concat_1/concat"), loc); 55 | outputs.put(interpreter.getOutputIndex("cls_branch_concat_1/concat"), cls); 56 | interpreter.runForMultipleInputsOutputs(new Object[]{datasets}, outputs); 57 | 58 | //先通过score筛选Box，减少后续计算 59 | Vector filteredBoxes = new Vector<>(); 60 | for(int i=0; i<5972; i++) { 61 | int idxCls = -1; 62 | if(cls[0][i][0] > cls[0][i][1]) { 63 | idxCls = 0; 64 | } else { 65 | idxCls = 1; 66 | } 67 | 68 | if(cls[0][i][idxCls] > CONF_THRESHOLD) { 69 | Box box = new Box(); 70 | // core 71 | box.score = cls[0][i][idxCls]; 72 | // box 73 | box.box[0] = loc[0][i][0]; 74 | box.box[1] = loc[0][i][1]; 75 | box.box[2] = loc[0][i][2]; 76 | box.box[3] = loc[0][i][3]; 77 | 78 | box.cls = idxCls; 79 | 80 | if(idxCls == 0) { 81 | box.title = "有口罩"; 82 | } else { 83 | box.title = "无口罩"; 84 | } 85 | 86 | box.index = i; 87 | 88 | filteredBoxes.add(box); 89 | } 90 | } 91 | 92 | //解码Box参数 93 | decodeBBox(filteredBoxes); 94 | 95 | //NMS 96 | nms(filteredBoxes, IOU_THRESHOLD, "Union"); 97 | 98 | //Log.i(LOGGING_TAG, String.format("Detected: %d", filteredBoxes.size())); 99 | 100 | return filteredBoxes; 101 | } 102 | 103 | private void generateAnchors() { 104 | int anchorTotal = 0; 105 | for(int i=0; i<5; i++) { 106 | anchorTotal += feature_map_sizes[i] * feature_map_sizes[i]; 107 | } 108 | anchorTotal *= 4; 109 | 110 | anchors = new float[anchorTotal][4]; 111 | 112 | int index = 0; 113 | for(int i=0; i<5; i++) { 114 | float center[] = new float[feature_map_sizes[i]]; 115 | for(int j=0; j boxes) { 144 | for(int i=0; i boxes, float threshold, String method) { 164 | // NMS.两两比对 165 | // int delete_cnt = 0; 166 | for (int i = 0; i < boxes.size(); i++) { 167 | Box box = boxes.get(i); 168 | if (!box.deleted) { 169 | // score<0表示当前矩形框被删除 170 | for (int j = i + 1; j < boxes.size(); j++) { 171 | Box box2 = boxes.get(j); 172 | if ((!box2.deleted) && (box2.cls==box.cls)) { 173 | float x1 = Math.max(box.box[0], box2.box[0]); 174 | float y1 = Math.max(box.box[1], box2.box[1]); 175 | float x2 = Math.min(box.box[2], box2.box[2]); 176 | float y2 = Math.min(box.box[3], box2.box[3]); 177 | if (x2 < x1 || y2 < y1) continue; 178 | float areaIoU = (x2 - x1 + 1) * (y2 - y1 + 1); 179 | float iou = 0f; 180 | if (method.equals("Union")) 181 | iou = 1.0f * areaIoU / (box.area() + box2.area() - areaIoU); 182 | else if (method.equals("Min")) 183 | iou = 1.0f * areaIoU / (Math.min(box.area(), box2.area())); 184 | if (iou >= threshold) { // 删除prob小的那个框 185 | if (box.score > box2.score) 186 | box2.deleted = true; 187 | else 188 | box.deleted = true; 189 | } 190 | } 191 | } 192 | } 193 | } 194 | } 195 | } 196 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/util/ImageUtils.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.util; 2 | 3 | import android.content.Context; 4 | import android.content.res.AssetFileDescriptor; 5 | import android.content.res.AssetManager; 6 | import android.graphics.Bitmap; 7 | import android.graphics.BitmapFactory; 8 | import android.graphics.Matrix; 9 | import android.graphics.Rect; 10 | import android.media.Image; 11 | 12 | import com.example.androidfacemask.facemask.Box; 13 | 14 | import java.io.FileInputStream; 15 | import java.io.IOException; 16 | import java.io.InputStream; 17 | import java.nio.ByteBuffer; 18 | import java.nio.MappedByteBuffer; 19 | import java.nio.channels.FileChannel; 20 | 21 | import static java.lang.Math.max; 22 | import static java.lang.Math.min; 23 | 24 | public class ImageUtils { 25 | // This value is 2 ^ 18 - 1, and is used to clamp the RGB values before their ranges 26 | // are normalized to eight bits. 27 | static final int kMaxChannelValue = 262143; 28 | 29 | public static int[] convertYUVToARGB(final Image image, final int previewWidth, final int previewHeight) { 30 | final Image.Plane[] planes = image.getPlanes(); 31 | byte[][] yuvBytes = fillBytes(planes); 32 | return ImageUtils.convertYUV420ToARGB8888(yuvBytes[0], yuvBytes[1], yuvBytes[2], previewWidth, 33 | previewHeight, planes[0].getRowStride(), planes[1].getRowStride(), planes[1].getPixelStride()); 34 | } 35 | 36 | private static byte[][] fillBytes(final Image.Plane[] planes) { 37 | byte[][] yuvBytes = new byte[3][]; 38 | for (int i = 0; i < planes.length; ++i) { 39 | final ByteBuffer buffer = planes[i].getBuffer(); 40 | if (yuvBytes[i] == null) { 41 | yuvBytes[i] = new byte[buffer.capacity()]; 42 | } 43 | buffer.get(yuvBytes[i]); 44 | } 45 | 46 | return yuvBytes; 47 | } 48 | 49 | private static int[] convertYUV420ToARGB8888(byte[] yData, byte[] uData, byte[] vData, int width, int height, 50 | int yRowStride, int uvRowStride, int uvPixelStride) { 51 | int[] out = new int[width * height]; 52 | int i = 0; 53 | for (int y = 0; y < height; y++) { 54 | int pY = yRowStride * y; 55 | int uv_row_start = uvRowStride * (y >> 1); 56 | int pU = uv_row_start; 57 | int pV = uv_row_start; 58 | 59 | for (int x = 0; x < width; x++) { 60 | int uv_offset = (x >> 1) * uvPixelStride; 61 | out[i++] = YUV2RGB( 62 | convertByteToInt(yData, pY + x), 63 | convertByteToInt(uData, pU + uv_offset), 64 | convertByteToInt(vData, pV + uv_offset)); 65 | } 66 | } 67 | 68 | return out; 69 | } 70 | 71 | private static int convertByteToInt(byte[] arr, int pos) { 72 | return arr[pos] & 0xFF; 73 | } 74 | 75 | private static int YUV2RGB(int nY, int nU, int nV) { 76 | nY -= 16; 77 | nU -= 128; 78 | nV -= 128; 79 | if (nY < 0) nY = 0; 80 | 81 | int nR = 1192 * nY + 1634 * nV; 82 | int nG = 1192 * nY - 833 * nV - 400 * nU; 83 | int nB = 1192 * nY + 2066 * nU; 84 | 85 | nR = Math.min(kMaxChannelValue, Math.max(0, nR)); 86 | nG = Math.min(kMaxChannelValue, Math.max(0, nG)); 87 | nB = Math.min(kMaxChannelValue, Math.max(0, nB)); 88 | 89 | nR = (nR >> 10) & 0xff; 90 | nG = (nG >> 10) & 0xff; 91 | nB = (nB >> 10) & 0xff; 92 | 93 | return 0xff000000 | (nR << 16) | (nG << 8) | nB; 94 | } 95 | 96 | public static Matrix getTransformationMatrix(final int srcWidth, final int srcHeight, 97 | final int dstWidth, final int dstHeight, 98 | final int applyRotation, final boolean maintainAspectRatio) { 99 | final Matrix matrix = new Matrix(); 100 | 101 | if (applyRotation != 0) { 102 | // Translate so center of image is at origin. 103 | matrix.postTranslate(-srcWidth / 2.0f, -srcHeight / 2.0f); 104 | 105 | // Rotate around origin. 106 | matrix.postRotate(applyRotation); 107 | } 108 | 109 | // Account for the already applied rotation, if any, and then determine how 110 | // much scaling is needed for each axis. 111 | final boolean transpose = (Math.abs(applyRotation) + 90) % 180 == 0; 112 | 113 | final int inWidth = transpose ? srcHeight : srcWidth; 114 | final int inHeight = transpose ? srcWidth : srcHeight; 115 | 116 | // Apply scaling if necessary. 117 | if (inWidth != dstWidth || inHeight != dstHeight) { 118 | final float scaleFactorX = dstWidth / (float) inWidth; 119 | final float scaleFactorY = dstHeight / (float) inHeight; 120 | 121 | if (maintainAspectRatio) { 122 | // Scale by minimum factor so that dst is filled completely while 123 | // maintaining the aspect ratio. Some image may fall off the edge. 124 | final float scaleFactor = Math.max(scaleFactorX, scaleFactorY); 125 | matrix.postScale(scaleFactor, scaleFactor); 126 | } else { 127 | // Scale exactly to fill dst from src. 128 | matrix.postScale(scaleFactorX, scaleFactorY); 129 | } 130 | } 131 | 132 | if (applyRotation != 0) { 133 | // Translate back from origin centered reference to destination frame. 134 | matrix.postTranslate(dstWidth / 2.0f, dstHeight / 2.0f); 135 | } 136 | 137 | return matrix; 138 | } 139 | 140 | /** 141 | * 从assets中读取图片 142 | * 143 | * @param context 144 | * @param filename 145 | * @return 146 | */ 147 | public static Bitmap readFromAssets(Context context, String filename) { 148 | Bitmap bitmap; 149 | AssetManager asm = context.getAssets(); 150 | try { 151 | InputStream is = asm.open(filename); 152 | bitmap = BitmapFactory.decodeStream(is); 153 | is.close(); 154 | } catch (IOException e) { 155 | e.printStackTrace(); 156 | return null; 157 | } 158 | return bitmap; 159 | } 160 | 161 | /** 162 | * 给rect增加margin 163 | * 164 | * @param bitmap 165 | * @param rect 166 | * @param marginX 167 | * @param marginY 168 | */ 169 | public static void rectExtend(Bitmap bitmap, Rect rect, int marginX, int marginY) { 170 | rect.left = max(0, rect.left - marginX / 2); 171 | rect.right = min(bitmap.getWidth() - 1, rect.right + marginX / 2); 172 | rect.top = max(0, rect.top - marginY / 2); 173 | rect.bottom = min(bitmap.getHeight() - 1, rect.bottom + marginY / 2); 174 | } 175 | 176 | /** 177 | * 加载模型文件 178 | * 179 | * @param assetManager 180 | * @param modelPath 181 | * @return 182 | * @throws IOException 183 | */ 184 | public static MappedByteBuffer loadModelFile(AssetManager assetManager, String modelPath) throws IOException { 185 | AssetFileDescriptor fileDescriptor = assetManager.openFd(modelPath); 186 | FileInputStream inputStream = new FileInputStream(fileDescriptor.getFileDescriptor()); 187 | FileChannel fileChannel = inputStream.getChannel(); 188 | long startOffset = fileDescriptor.getStartOffset(); 189 | long declaredLength = fileDescriptor.getDeclaredLength(); 190 | return fileChannel.map(FileChannel.MapMode.READ_ONLY, startOffset, declaredLength); 191 | } 192 | 193 | /** 194 | * 归一化图片到[0, 1] 195 | * 196 | * @param bitmap 197 | * @return 198 | */ 199 | public static float[][][] normalizeImage(Bitmap bitmap) { 200 | int h = bitmap.getHeight(); 201 | int w = bitmap.getWidth(); 202 | float[][][] floatValues = new float[h][w][3]; 203 | 204 | float imageMean = 0.0f; 205 | float imageStd = 255.0f; 206 | 207 | int[] pixels = new int[h * w]; 208 | bitmap.getPixels(pixels, 0, bitmap.getWidth(), 0, 0, w, h); 209 | for (int i = 0; i < h; i++) { // 注意是先高后宽 210 | for (int j = 0; j < w; j++) { 211 | final int val = pixels[i * w + j]; 212 | float r = (((val >> 16) & 0xFF) - imageMean) / imageStd; 213 | float g = (((val >> 8) & 0xFF) - imageMean) / imageStd; 214 | float b = ((val & 0xFF) - imageMean) / imageStd; 215 | float[] arr = {r, g, b}; 216 | floatValues[i][j] = arr; 217 | } 218 | } 219 | return floatValues; 220 | } 221 | 222 | /** 223 | * 缩放图片 224 | * 225 | * @param bitmap 226 | * @param scale 227 | * @return 228 | */ 229 | public static Bitmap bitmapResize(Bitmap bitmap, float scale) { 230 | int width = bitmap.getWidth(); 231 | int height = bitmap.getHeight(); 232 | Matrix matrix = new Matrix(); 233 | matrix.postScale(scale, scale); 234 | return Bitmap.createBitmap( 235 | bitmap, 0, 0, width, height, matrix, true); 236 | } 237 | 238 | /** 239 | * 图片矩阵宽高转置 240 | * 241 | * @param in 242 | * @return 243 | */ 244 | public static float[][][] transposeImage(float[][][] in) { 245 | int h = in.length; 246 | int w = in[0].length; 247 | int channel = in[0][0].length; 248 | float[][][] out = new float[w][h][channel]; 249 | for (int i = 0; i < h; i++) { 250 | for (int j = 0; j < w; j++) { 251 | out[j][i] = in[i][j]; 252 | } 253 | } 254 | return out; 255 | } 256 | 257 | /** 258 | * 4维图片batch矩阵宽高转置 259 | * 260 | * @param in 261 | * @return 262 | */ 263 | public static float[][][][] transposeBatch(float[][][][] in) { 264 | int batch = in.length; 265 | int h = in[0].length; 266 | int w = in[0][0].length; 267 | int channel = in[0][0][0].length; 268 | float[][][][] out = new float[batch][w][h][channel]; 269 | for (int i = 0; i < batch; i++) { 270 | for (int j = 0; j < h; j++) { 271 | for (int k = 0; k < w; k++) { 272 | out[i][k][j] = in[i][j][k]; 273 | } 274 | } 275 | } 276 | return out; 277 | } 278 | 279 | /** 280 | * 截取box中指定的矩形框(越界要处理)，并resize到size*size大小，返回数据存放到data中。 281 | * 282 | * @param bitmap 283 | * @param box 284 | * @param size return 285 | */ 286 | public static float[][][] cropAndResize(Bitmap bitmap, Box box, int size) { 287 | // crop and resize 288 | Matrix matrix = new Matrix(); 289 | float scaleW = 1.0f * size / box.width(); 290 | float scaleH = 1.0f * size / box.height(); 291 | matrix.postScale(scaleW, scaleH); 292 | Rect rect = box.transform2Rect(); 293 | Bitmap croped = Bitmap.createBitmap( 294 | bitmap, rect.left, rect.top, (int)box.width(), (int)box.height(), matrix, true); 295 | 296 | return normalizeImage(croped); 297 | } 298 | 299 | /** 300 | * 按照rect的大小裁剪 301 | * 302 | * @param bitmap 303 | * @param rect 304 | * @return 305 | */ 306 | public static Bitmap crop(Bitmap bitmap, Rect rect) { 307 | int x = rect.left; 308 | if (x < 0) { 309 | x = 0; 310 | } 311 | int y = rect.top; 312 | if (y < 0) { 313 | y = 0; 314 | } 315 | int width = rect.right - rect.left; 316 | if (x + width > bitmap.getWidth()) { 317 | width = bitmap.getWidth() - x; 318 | } 319 | int height = rect.bottom - rect.top; 320 | if (y + height > bitmap.getHeight()) { 321 | height = bitmap.getHeight() - y; 322 | } 323 | Bitmap cropped = Bitmap.createBitmap(bitmap, x, y, width, height); 324 | return cropped; 325 | } 326 | 327 | /** 328 | * l2正则化 329 | * 330 | * @param embeddings 331 | * @param epsilon 惩罚项 332 | * @return 333 | */ 334 | public static void l2Normalize(float[][] embeddings, double epsilon) { 335 | for (int i = 0; i < embeddings.length; i++) { 336 | float squareSum = 0; 337 | for (int j = 0; j < embeddings[i].length; j++) { 338 | squareSum += Math.pow(embeddings[i][j], 2); 339 | } 340 | float xInvNorm = (float) Math.sqrt(Math.max(squareSum, epsilon)); 341 | for (int j = 0; j < embeddings[i].length; j++) { 342 | embeddings[i][j] = embeddings[i][j] / xInvNorm; 343 | } 344 | } 345 | } 346 | } -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/util/comparator/CompareSizesByArea.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.util.comparator; 2 | 3 | import android.util.Size; 4 | 5 | import java.util.Comparator; 6 | 7 | 8 | public class CompareSizesByArea implements Comparator { 9 | @Override 10 | public int compare(final Size lhs, final Size rhs) { 11 | // We cast here to ensure the multiplications won't overflow 12 | return Long.signum((long) lhs.getWidth() * lhs.getHeight() 13 | - (long) rhs.getWidth() * rhs.getHeight()); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/AutoFitTextureView.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view; 2 | 3 | import android.content.Context; 4 | import android.util.AttributeSet; 5 | import android.view.TextureView; 6 | 7 | public class AutoFitTextureView extends TextureView { 8 | private int ratioWidth = 0; 9 | private int ratioHeight = 0; 10 | 11 | public AutoFitTextureView(final Context context) { 12 | this(context, null); 13 | } 14 | 15 | public AutoFitTextureView(final Context context, final AttributeSet attrs) { 16 | this(context, attrs, 0); 17 | } 18 | 19 | public AutoFitTextureView(final Context context, final AttributeSet attrs, final int defStyle) { 20 | super(context, attrs, defStyle); 21 | } 22 | 23 | /** 24 | * Sets the aspect ratio for this view. The size of the view will be measured based on the ratio 25 | * calculated from the parameters. Note that the actual sizes of parameters don't matter, that 26 | * is, calling setAspectRatio(2, 3) and setAspectRatio(4, 6) make the same result. 27 | * 28 | * @param width Relative horizontal size 29 | * @param height Relative vertical size 30 | */ 31 | public void setAspectRatio(final int width, final int height) { 32 | if (width < 0 || height < 0) { 33 | throw new IllegalArgumentException("Size cannot be negative."); 34 | } 35 | ratioWidth = width; 36 | ratioHeight = height; 37 | requestLayout(); 38 | } 39 | 40 | @Override 41 | protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) { 42 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 43 | final int width = MeasureSpec.getSize(widthMeasureSpec); 44 | final int height = MeasureSpec.getSize(heightMeasureSpec); 45 | if (0 == ratioWidth || 0 == ratioHeight) { 46 | setMeasuredDimension(width, height); 47 | } else { 48 | if (width < height * ratioWidth / ratioHeight) { 49 | setMeasuredDimension(width, width * ratioHeight / ratioWidth); 50 | } else { 51 | setMeasuredDimension(height * ratioWidth / ratioHeight, height); 52 | } 53 | } 54 | } 55 | } 56 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/CameraActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view; 2 | 3 | import android.Manifest; 4 | import android.app.Activity; 5 | import android.content.pm.PackageManager; 6 | import android.media.ImageReader.OnImageAvailableListener; 7 | import android.os.Build; 8 | import android.os.Bundle; 9 | import android.os.Handler; 10 | import android.os.HandlerThread; 11 | import android.util.Log; 12 | import android.util.Size; 13 | import android.view.WindowManager; 14 | import android.widget.Toast; 15 | 16 | import com.example.androidfacemask.R; 17 | 18 | import static com.example.androidfacemask.Config.LOGGING_TAG; 19 | 20 | public abstract class CameraActivity extends Activity implements OnImageAvailableListener { 21 | private static final int PERMISSIONS_REQUEST = 1; 22 | 23 | private Handler handler; 24 | private HandlerThread handlerThread; 25 | 26 | @Override 27 | protected void onCreate(final Bundle savedInstanceState) { 28 | super.onCreate(null); 29 | getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 30 | 31 | setContentView(R.layout.activity_camera); 32 | 33 | if (hasPermission()) { 34 | setFragment(); 35 | } else { 36 | requestPermission(); 37 | } 38 | } 39 | 40 | @Override 41 | public synchronized void onResume() { 42 | super.onResume(); 43 | 44 | handlerThread = new HandlerThread("inference"); 45 | handlerThread.start(); 46 | handler = new Handler(handlerThread.getLooper()); 47 | } 48 | 49 | @Override 50 | public synchronized void onPause() { 51 | if (!isFinishing()) { 52 | finish(); 53 | } 54 | 55 | handlerThread.quitSafely(); 56 | try { 57 | handlerThread.join(); 58 | handlerThread = null; 59 | handler = null; 60 | } catch (final InterruptedException ex) { 61 | Log.e(LOGGING_TAG, "Exception: " + ex.getMessage()); 62 | } 63 | 64 | super.onPause(); 65 | } 66 | 67 | protected synchronized void runInBackground(final Runnable runnable) { 68 | if (handler != null) { 69 | handler.post(runnable); 70 | } 71 | } 72 | 73 | @Override 74 | public void onRequestPermissionsResult(final int requestCode, final String[] permissions, 75 | final int[] grantResults) { 76 | switch (requestCode) { 77 | case PERMISSIONS_REQUEST: { 78 | if (grantResults.length > 0 79 | && grantResults[0] == PackageManager.PERMISSION_GRANTED 80 | && grantResults[1] == PackageManager.PERMISSION_GRANTED) { 81 | setFragment(); 82 | } else { 83 | requestPermission(); 84 | } 85 | } 86 | } 87 | } 88 | 89 | private boolean hasPermission() { 90 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { 91 | return checkSelfPermission(Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED 92 | && checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED; 93 | } else { 94 | return true; 95 | } 96 | } 97 | 98 | private void requestPermission() { 99 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { 100 | if (shouldShowRequestPermissionRationale(Manifest.permission.CAMERA) 101 | || shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) { 102 | Toast.makeText(CameraActivity.this, 103 | "Camera AND storage permission are required for this demo", Toast.LENGTH_LONG).show(); 104 | } 105 | requestPermissions(new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSIONS_REQUEST); 106 | } 107 | } 108 | 109 | protected void setFragment() { 110 | CameraConnectionFragment cameraConnectionFragment = new CameraConnectionFragment(); 111 | cameraConnectionFragment.addConnectionListener((final Size size, final int rotation) -> 112 | CameraActivity.this.onPreviewSizeChosen(size, rotation)); 113 | cameraConnectionFragment.addImageAvailableListener(this); 114 | 115 | getFragmentManager() 116 | .beginTransaction() 117 | .replace(R.id.container, cameraConnectionFragment) 118 | .commit(); 119 | } 120 | 121 | public void requestRender() { 122 | final OverlayView overlay = (OverlayView) findViewById(R.id.overlay); 123 | if (overlay != null) { 124 | overlay.postInvalidate(); 125 | } 126 | } 127 | 128 | public void addCallback(final OverlayView.DrawCallback callback) { 129 | final OverlayView overlay = (OverlayView) findViewById(R.id.overlay); 130 | if (overlay != null) { 131 | overlay.addCallback(callback); 132 | } 133 | } 134 | 135 | protected abstract void onPreviewSizeChosen(final Size size, final int rotation); 136 | } 137 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/CameraConnectionFragment.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view; 2 | 3 | import android.Manifest; 4 | import android.app.Activity; 5 | import android.app.Fragment; 6 | import android.content.Context; 7 | import android.content.pm.PackageManager; 8 | import android.content.res.Configuration; 9 | import android.graphics.ImageFormat; 10 | import android.graphics.Matrix; 11 | import android.graphics.RectF; 12 | import android.graphics.SurfaceTexture; 13 | import android.hardware.camera2.CameraAccessException; 14 | import android.hardware.camera2.CameraCaptureSession; 15 | import android.hardware.camera2.CameraCharacteristics; 16 | import android.hardware.camera2.CameraDevice; 17 | import android.hardware.camera2.CameraManager; 18 | import android.hardware.camera2.CaptureRequest; 19 | import android.hardware.camera2.params.StreamConfigurationMap; 20 | import android.media.ImageReader; 21 | import android.media.ImageReader.OnImageAvailableListener; 22 | import android.os.Bundle; 23 | import android.os.Handler; 24 | import android.os.HandlerThread; 25 | import android.util.Log; 26 | import android.util.Size; 27 | import android.util.SparseIntArray; 28 | import android.view.LayoutInflater; 29 | import android.view.Surface; 30 | import android.view.TextureView; 31 | import android.view.View; 32 | import android.view.ViewGroup; 33 | import android.widget.Toast; 34 | 35 | import com.example.androidfacemask.R; 36 | import com.example.androidfacemask.util.comparator.CompareSizesByArea; 37 | import com.example.androidfacemask.view.components.ErrorDialog; 38 | 39 | import java.util.ArrayList; 40 | import java.util.Arrays; 41 | import java.util.Collections; 42 | import java.util.List; 43 | import java.util.concurrent.Semaphore; 44 | import java.util.concurrent.TimeUnit; 45 | 46 | import static com.example.androidfacemask.Config.LOGGING_TAG; 47 | 48 | 49 | public class CameraConnectionFragment extends Fragment { 50 | private static final Size DESIRED_PREVIEW_SIZE = new Size(640, 480); 51 | /** 52 | * The camera preview size will be chosen to be the smallest frame by pixel size capable of 53 | * containing a DESIRED_SIZE x DESIRED_SIZE square. 54 | */ 55 | private static final int MINIMUM_PREVIEW_SIZE = 320; 56 | 57 | /** 58 | * Conversion from screen rotation to JPEG orientation. 59 | */ 60 | private static final SparseIntArray ORIENTATIONS = new SparseIntArray(); 61 | 62 | static { 63 | ORIENTATIONS.append(Surface.ROTATION_0, 90); 64 | ORIENTATIONS.append(Surface.ROTATION_90, 0); 65 | ORIENTATIONS.append(Surface.ROTATION_180, 270); 66 | ORIENTATIONS.append(Surface.ROTATION_270, 180); 67 | } 68 | 69 | private static final String FRAGMENT_DIALOG = "dialog"; 70 | 71 | /** 72 | * A {@link Semaphore} to prevent the app from exiting before closing the camera. 73 | */ 74 | private final Semaphore cameraOpenCloseLock = new Semaphore(1); 75 | /** 76 | * A {@link OnImageAvailableListener} to receive frames as they are available. 77 | */ 78 | private OnImageAvailableListener imageListener; 79 | 80 | /** 81 | * A {@link ConnectionListener} to notify the caller activity 82 | */ 83 | private ConnectionListener cameraConnectionListener; 84 | 85 | /** 86 | * ID of the current {@link CameraDevice}. 87 | */ 88 | private String cameraId; 89 | /** 90 | * An {@link AutoFitTextureView} for camera preview. 91 | */ 92 | private AutoFitTextureView textureView; 93 | /** 94 | * A {@link CameraCaptureSession } for camera preview. 95 | */ 96 | private CameraCaptureSession captureSession; 97 | /** 98 | * A reference to the opened {@link CameraDevice}. 99 | */ 100 | private CameraDevice cameraDevice; 101 | /** 102 | * The rotation in degrees of the camera sensor from the display. 103 | */ 104 | private Integer sensorOrientation; 105 | /** 106 | * The {@link android.util.Size} of camera preview. 107 | */ 108 | private Size previewSize; 109 | /** 110 | * An additional thread for running tasks that shouldn't block the UI. 111 | */ 112 | private HandlerThread backgroundThread; 113 | /** 114 | * A {@link Handler} for running tasks in the background. 115 | */ 116 | private Handler backgroundHandler; 117 | /** 118 | * An {@link ImageReader} that handles preview frame capture. 119 | */ 120 | private ImageReader previewReader; 121 | /** 122 | * {@link android.hardware.camera2.CaptureRequest.Builder} for the camera preview 123 | */ 124 | private CaptureRequest.Builder previewRequestBuilder; 125 | /** 126 | * {@link CaptureRequest} generated by {@link #previewRequestBuilder} 127 | */ 128 | private CaptureRequest previewRequest; 129 | 130 | @Override 131 | public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) { 132 | return inflater.inflate(R.layout.camera_connection_fragment, container, false); 133 | } 134 | 135 | @Override 136 | public void onViewCreated(final View view, final Bundle savedInstanceState) { 137 | textureView = (AutoFitTextureView) view.findViewById(R.id.texture); 138 | } 139 | 140 | @Override 141 | public void onActivityCreated(final Bundle savedInstanceState) { 142 | super.onActivityCreated(savedInstanceState); 143 | } 144 | 145 | @Override 146 | public void onResume() { 147 | super.onResume(); 148 | startBackgroundThread(); 149 | 150 | // When the screen is turned off and turned back on, the SurfaceTexture is already 151 | // available, and "onSurfaceTextureAvailable" will not be called. In that case, we can open 152 | // a camera and start preview from here (otherwise, we wait until the surface is ready in 153 | // the SurfaceTextureListener). 154 | if (textureView.isAvailable()) { 155 | openCamera(textureView.getWidth(), textureView.getHeight()); 156 | } else { 157 | textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() { 158 | @Override 159 | public void onSurfaceTextureAvailable(final SurfaceTexture texture, final int width, final int height) { 160 | openCamera(width, height); 161 | } 162 | 163 | @Override 164 | public void onSurfaceTextureSizeChanged(final SurfaceTexture texture, final int width, final int height) { 165 | configureTransform(width, height); 166 | } 167 | 168 | @Override 169 | public boolean onSurfaceTextureDestroyed(final SurfaceTexture texture) { 170 | return true; 171 | } 172 | 173 | @Override 174 | public void onSurfaceTextureUpdated(final SurfaceTexture texture) { 175 | } 176 | }); 177 | } 178 | } 179 | 180 | @Override 181 | public void onPause() { 182 | closeCamera(); 183 | stopBackgroundThread(); 184 | super.onPause(); 185 | } 186 | 187 | public void addConnectionListener(final ConnectionListener cameraConnectionListener) { 188 | this.cameraConnectionListener = cameraConnectionListener; 189 | } 190 | 191 | public void addImageAvailableListener(final OnImageAvailableListener imageListener) { 192 | this.imageListener = imageListener; 193 | } 194 | 195 | /** 196 | * Callback for Activities to use to initialize their data once the 197 | * selected preview size is known. 198 | */ 199 | public interface ConnectionListener { 200 | void onPreviewSizeChosen(Size size, int cameraRotation); 201 | } 202 | 203 | /** 204 | * Given {@code choices} of {@code Size}s supported by a camera, chooses the smallest one whose 205 | * width and height are at least as large as the minimum of both, or an exact match if possible. 206 | * 207 | * @param choices The list of sizes that the camera supports for the intended output class 208 | * @return The optimal {@code Size}, or an arbitrary one if none were big enough 209 | */ 210 | private static Size chooseOptimalSize(final Size[] choices) { 211 | final int minSize = Math.max(Math.min(DESIRED_PREVIEW_SIZE.getWidth(), 212 | DESIRED_PREVIEW_SIZE.getHeight()), MINIMUM_PREVIEW_SIZE); 213 | 214 | // Collect the supported resolutions that are at least as big as the preview Surface 215 | final List bigEnough = new ArrayList(); 216 | for (final Size option : choices) { 217 | if (option.equals(DESIRED_PREVIEW_SIZE)) { 218 | return DESIRED_PREVIEW_SIZE; 219 | } 220 | 221 | if (option.getHeight() >= minSize && option.getWidth() >= minSize) { 222 | bigEnough.add(option); 223 | } 224 | } 225 | 226 | // Pick the smallest of those, assuming we found any 227 | return (bigEnough.size() > 0) ? Collections.min(bigEnough, new CompareSizesByArea()) : choices[0]; 228 | } 229 | 230 | /** 231 | * Shows a {@link Toast} on the UI thread. 232 | * 233 | * @param text The message to show 234 | */ 235 | private void showToast(final String text) { 236 | final Activity activity = getActivity(); 237 | if (activity != null) { 238 | activity.runOnUiThread(() -> Toast.makeText(activity, text, Toast.LENGTH_SHORT).show()); 239 | } 240 | } 241 | 242 | /** 243 | * Sets up member variables related to camera. 244 | */ 245 | private void setUpCameraOutputs() { 246 | final CameraManager manager = (CameraManager) getActivity().getSystemService(Context.CAMERA_SERVICE); 247 | try { 248 | for (final String cameraId : manager.getCameraIdList()) { 249 | final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); 250 | 251 | // We don't use a front facing camera in this sample. 252 | final Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); 253 | if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) { 254 | continue; 255 | } 256 | 257 | final StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); 258 | 259 | if (map == null) { 260 | continue; 261 | } 262 | 263 | sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); 264 | 265 | // Danger, W.R.! Attempting to use too large a preview size could exceed the camera 266 | // bus' bandwidth limitation, resulting in gorgeous previews but the storage of 267 | // garbage capture data. 268 | previewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class)); 269 | 270 | // We fit the aspect ratio of TextureView to the size of preview we picked. 271 | final int orientation = getResources().getConfiguration().orientation; 272 | if (orientation == Configuration.ORIENTATION_LANDSCAPE) { 273 | textureView.setAspectRatio(previewSize.getWidth(), previewSize.getHeight()); 274 | } else { 275 | textureView.setAspectRatio(previewSize.getHeight(), previewSize.getWidth()); 276 | } 277 | 278 | this.cameraId = cameraId; 279 | } 280 | } catch (final CameraAccessException ex) { 281 | Log.e(LOGGING_TAG, "Exception: " + ex.getMessage()); 282 | } catch (final NullPointerException ex) { 283 | ErrorDialog.newInstance(getString(R.string.camera_error)) 284 | .show(getChildFragmentManager(), FRAGMENT_DIALOG); 285 | throw new RuntimeException(getString(R.string.camera_error)); 286 | } 287 | 288 | cameraConnectionListener.onPreviewSizeChosen(previewSize, sensorOrientation); 289 | } 290 | 291 | /** 292 | * Opens the camera specified by {@link CameraConnectionFragment#cameraId}. 293 | */ 294 | private void openCamera(final int width, final int height) { 295 | setUpCameraOutputs(); 296 | configureTransform(width, height); 297 | final Activity activity = getActivity(); 298 | /** 299 | * {@link android.hardware.camera2.CameraDevice.StateCallback} 300 | * is called when {@link CameraDevice} changes its state. 301 | */ 302 | final CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); 303 | try { 304 | if (!cameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { 305 | throw new RuntimeException("Time out waiting to lock camera opening."); 306 | } 307 | if (activity.checkSelfPermission(Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) { 308 | manager.openCamera(cameraId, new CameraDevice.StateCallback() { 309 | @Override 310 | public void onOpened(final CameraDevice cameraDevice) { 311 | // This method is called when the camera is opened. We start camera preview here. 312 | cameraOpenCloseLock.release(); 313 | CameraConnectionFragment.this.cameraDevice = cameraDevice; 314 | createCameraPreviewSession(); 315 | } 316 | 317 | @Override 318 | public void onDisconnected(final CameraDevice cameraDevice) { 319 | cameraOpenCloseLock.release(); 320 | cameraDevice.close(); 321 | CameraConnectionFragment.this.cameraDevice = null; 322 | } 323 | 324 | @Override 325 | public void onError(final CameraDevice cameraDevice, final int error) { 326 | cameraOpenCloseLock.release(); 327 | cameraDevice.close(); 328 | CameraConnectionFragment.this.cameraDevice = null; 329 | final Activity activity = getActivity(); 330 | if (null != activity) { 331 | activity.finish(); 332 | } 333 | } 334 | }, backgroundHandler); 335 | } else { 336 | requestPermissions(new String[]{Manifest.permission.CAMERA}, 1); 337 | } 338 | } catch (final CameraAccessException ex) { 339 | Log.e(LOGGING_TAG, "Exception: " + ex.getMessage()); 340 | } catch (final InterruptedException ex) { 341 | throw new RuntimeException("Interrupted while trying to lock camera opening.", ex); 342 | } 343 | } 344 | 345 | /** 346 | * Closes the current {@link CameraDevice}. 347 | */ 348 | private void closeCamera() { 349 | try { 350 | cameraOpenCloseLock.acquire(); 351 | if (null != captureSession) { 352 | captureSession.close(); 353 | captureSession = null; 354 | } 355 | if (null != cameraDevice) { 356 | cameraDevice.close(); 357 | cameraDevice = null; 358 | } 359 | if (null != previewReader) { 360 | previewReader.close(); 361 | previewReader = null; 362 | } 363 | } catch (final InterruptedException e) { 364 | throw new RuntimeException("Interrupted while trying to lock camera closing.", e); 365 | } finally { 366 | cameraOpenCloseLock.release(); 367 | } 368 | } 369 | 370 | /** 371 | * Starts a background thread and its {@link Handler}. 372 | */ 373 | private void startBackgroundThread() { 374 | backgroundThread = new HandlerThread("ImageListener"); 375 | backgroundThread.start(); 376 | backgroundHandler = new Handler(backgroundThread.getLooper()); 377 | } 378 | 379 | /** 380 | * Stops the background thread and its {@link Handler}. 381 | */ 382 | private void stopBackgroundThread() { 383 | backgroundThread.quitSafely(); 384 | try { 385 | backgroundThread.join(); 386 | backgroundThread = null; 387 | backgroundHandler = null; 388 | } catch (final InterruptedException ex) { 389 | Log.e(LOGGING_TAG, "Exception: " + ex.getMessage()); 390 | } 391 | } 392 | 393 | /** 394 | * Creates a new {@link CameraCaptureSession} for camera preview. 395 | */ 396 | private void createCameraPreviewSession() { 397 | try { 398 | final SurfaceTexture texture = textureView.getSurfaceTexture(); 399 | assert texture != null; 400 | 401 | // We configure the size of default buffer to be the size of camera preview we want. 402 | texture.setDefaultBufferSize(previewSize.getWidth(), previewSize.getHeight()); 403 | 404 | // This is the output Surface we need to start preview. 405 | final Surface surface = new Surface(texture); 406 | 407 | // We set up a CaptureRequest.Builder with the output Surface. 408 | previewRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW); 409 | previewRequestBuilder.addTarget(surface); 410 | 411 | Log.i(LOGGING_TAG, String.format("Opening camera preview: " 412 | + previewSize.getWidth() + "x" + previewSize.getHeight())); 413 | 414 | // Create the reader for the preview frames. 415 | previewReader = ImageReader.newInstance(previewSize.getWidth(), previewSize.getHeight(), 416 | ImageFormat.YUV_420_888, 2); 417 | 418 | previewReader.setOnImageAvailableListener(imageListener, backgroundHandler); 419 | previewRequestBuilder.addTarget(previewReader.getSurface()); 420 | 421 | // Here, we create a CameraCaptureSession for camera preview. 422 | cameraDevice.createCaptureSession(Arrays.asList(surface, previewReader.getSurface()), 423 | getCaptureSessionStateCallback(), null); 424 | } catch (final CameraAccessException ex) { 425 | Log.e(LOGGING_TAG, "Exception: " + ex.getMessage()); 426 | } 427 | } 428 | 429 | private CameraCaptureSession.StateCallback getCaptureSessionStateCallback() { 430 | return new CameraCaptureSession.StateCallback() { 431 | 432 | @Override 433 | public void onConfigured(final CameraCaptureSession cameraCaptureSession) { 434 | // The camera is already closed 435 | if (null == cameraDevice) { 436 | return; 437 | } 438 | 439 | // When the session is ready, we start displaying the preview. 440 | captureSession = cameraCaptureSession; 441 | try { 442 | // Auto focus should be continuous for camera preview. 443 | previewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, 444 | CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE); 445 | // Flash is automatically enabled when necessary. 446 | previewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, 447 | CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH); 448 | 449 | // Finally, we start displaying the camera preview. 450 | previewRequest = previewRequestBuilder.build(); 451 | captureSession.setRepeatingRequest(previewRequest, null, backgroundHandler); 452 | } catch (final CameraAccessException ex) { 453 | Log.e(LOGGING_TAG, "Exception: " + ex.getMessage()); 454 | } 455 | } 456 | 457 | @Override 458 | public void onConfigureFailed(final CameraCaptureSession cameraCaptureSession) { 459 | showToast("Failed"); 460 | } 461 | }; 462 | } 463 | 464 | /** 465 | * Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`. 466 | * This method should be called after the camera preview size is determined in 467 | * setUpCameraOutputs and also the size of `mTextureView` is fixed. 468 | * 469 | * @param viewWidth The width of `mTextureView` 470 | * @param viewHeight The height of `mTextureView` 471 | */ 472 | private void configureTransform(final int viewWidth, final int viewHeight) { 473 | final Activity activity = getActivity(); 474 | if (null == textureView || null == previewSize || null == activity) { 475 | return; 476 | } 477 | final int rotation = activity.getWindowManager().getDefaultDisplay().getRotation(); 478 | final Matrix matrix = new Matrix(); 479 | final RectF viewRect = new RectF(0, 0, viewWidth, viewHeight); 480 | final RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth()); 481 | final float centerX = viewRect.centerX(); 482 | final float centerY = viewRect.centerY(); 483 | if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) { 484 | bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY()); 485 | matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL); 486 | final float scale = 487 | Math.max( 488 | (float) viewHeight / previewSize.getHeight(), 489 | (float) viewWidth / previewSize.getWidth()); 490 | matrix.postScale(scale, scale, centerX, centerY); 491 | matrix.postRotate(90 * (rotation - 2), centerX, centerY); 492 | } else if (Surface.ROTATION_180 == rotation) { 493 | matrix.postRotate(180, centerX, centerY); 494 | } 495 | textureView.setTransform(matrix); 496 | } 497 | } 498 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/FaceActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view; 2 | 3 | import android.graphics.Bitmap; 4 | import android.graphics.Bitmap.Config; 5 | import android.graphics.BitmapFactory; 6 | import android.graphics.Canvas; 7 | import android.graphics.Matrix; 8 | import android.graphics.Typeface; 9 | import android.media.Image; 10 | import android.media.ImageReader; 11 | import android.media.ImageReader.OnImageAvailableListener; 12 | import android.os.Environment; 13 | import android.os.SystemClock; 14 | import android.util.Log; 15 | import android.util.Size; 16 | import android.util.TypedValue; 17 | 18 | import com.example.androidfacemask.R; 19 | import com.example.androidfacemask.facemask.FaceMask; 20 | import com.example.androidfacemask.facemask.Box; 21 | import com.example.androidfacemask.util.ImageUtils; 22 | import com.example.androidfacemask.view.components.BorderedText; 23 | 24 | import java.io.File; 25 | import java.io.FileInputStream; 26 | import java.io.IOException; 27 | import java.util.ArrayList; 28 | import java.util.Vector; 29 | 30 | import static com.example.androidfacemask.Config.LOGGING_TAG; 31 | 32 | public class FaceActivity extends com.example.androidfacemask.view.TextToSpeechActivity implements OnImageAvailableListener { 33 | private boolean MAINTAIN_ASPECT = true; 34 | private float TEXT_SIZE_DIP = 10; 35 | 36 | private Integer sensorOrientation; 37 | private int previewWidth = 0; 38 | private int previewHeight = 0; 39 | private Bitmap croppedBitmap = null; 40 | private boolean computing = false; 41 | private Matrix frameToCropTransform; 42 | 43 | private OverlayView overlayView; 44 | private BorderedText borderedText; 45 | private long lastProcessingTimeMs; 46 | 47 | private FaceMask facemask; // 口罩检测 48 | 49 | @Override 50 | public void onPreviewSizeChosen(final Size size, final int rotation) { 51 | final float textSizePx = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 52 | TEXT_SIZE_DIP, getResources().getDisplayMetrics()); 53 | borderedText = new BorderedText(textSizePx); 54 | borderedText.setTypeface(Typeface.MONOSPACE); 55 | 56 | overlayView = findViewById(R.id.overlay); 57 | previewWidth = size.getWidth(); 58 | previewHeight = size.getHeight(); 59 | 60 | final int screenOrientation = getWindowManager().getDefaultDisplay().getRotation(); 61 | 62 | Log.i(LOGGING_TAG, String.format("Sensor orientation: %d, Screen orientation: %d", 63 | rotation, screenOrientation)); 64 | 65 | sensorOrientation = rotation + screenOrientation; 66 | 67 | Log.i(LOGGING_TAG, String.format("Initializing at size %dx%d", previewWidth, previewHeight)); 68 | 69 | croppedBitmap = Bitmap.createBitmap(FaceMask.INPUT_IMAGE_SIZE, FaceMask.INPUT_IMAGE_SIZE, Config.ARGB_8888); 70 | 71 | frameToCropTransform = ImageUtils.getTransformationMatrix(previewWidth, previewHeight, 72 | FaceMask.INPUT_IMAGE_SIZE, FaceMask.INPUT_IMAGE_SIZE, sensorOrientation, MAINTAIN_ASPECT); 73 | frameToCropTransform.invert(new Matrix()); 74 | 75 | try { 76 | facemask = new FaceMask(getAssets()); 77 | } catch (IOException e) { 78 | e.printStackTrace(); 79 | } 80 | 81 | addCallback((final Canvas canvas) -> renderAdditionalInformation(canvas)); 82 | } 83 | 84 | @Override 85 | public void onImageAvailable(final ImageReader reader) { 86 | Image image = null; 87 | 88 | try { 89 | image = reader.acquireLatestImage(); 90 | 91 | if (image == null) { 92 | return; 93 | } 94 | 95 | if (computing) { 96 | image.close(); 97 | return; 98 | } 99 | 100 | computing = true; 101 | fillCroppedBitmap(image); 102 | image.close(); 103 | } catch (final Exception ex) { 104 | if (image != null) { 105 | image.close(); 106 | } 107 | Log.e(LOGGING_TAG, ex.getMessage()); 108 | } 109 | 110 | runInBackground(() -> { 111 | final long startTime = SystemClock.uptimeMillis(); 112 | Vector facemask_boxes = null; 113 | try { 114 | facemask_boxes = facemask.detectFaceMasks(croppedBitmap); 115 | } catch (Exception e) { 116 | e.printStackTrace(); 117 | } 118 | lastProcessingTimeMs = SystemClock.uptimeMillis() - startTime; 119 | if (facemask_boxes != null) { 120 | overlayView.setResults(facemask_boxes); 121 | } else { 122 | overlayView.setResults(null); 123 | } 124 | requestRender(); 125 | computing = false; 126 | }); 127 | } 128 | 129 | private void fillCroppedBitmap(final Image image) { 130 | Bitmap rgbFrameBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888); 131 | rgbFrameBitmap.setPixels(ImageUtils.convertYUVToARGB(image, previewWidth, previewHeight), 132 | 0, previewWidth, 0, 0, previewWidth, previewHeight); 133 | new Canvas(croppedBitmap).drawBitmap(rgbFrameBitmap, frameToCropTransform, null); 134 | } 135 | 136 | @Override 137 | protected void onDestroy() { 138 | super.onDestroy(); 139 | } 140 | 141 | private void renderAdditionalInformation(final Canvas canvas) { 142 | final Vector lines = new Vector(); 143 | 144 | lines.add("Frame: " + previewWidth + "x" + previewHeight); 145 | lines.add("View: " + canvas.getWidth() + "x" + canvas.getHeight()); 146 | lines.add("Rotation: " + sensorOrientation); 147 | lines.add("Inference time: " + lastProcessingTimeMs + "ms"); 148 | 149 | borderedText.drawLines(canvas, 10, 10, lines); 150 | } 151 | } 152 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/OverlayView.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view; 2 | 3 | import android.content.Context; 4 | import android.graphics.Canvas; 5 | import android.graphics.Color; 6 | import android.graphics.Paint; 7 | import android.graphics.RectF; 8 | import android.util.AttributeSet; 9 | import android.util.TypedValue; 10 | import android.view.View; 11 | 12 | import com.example.androidfacemask.Config; 13 | 14 | import com.example.androidfacemask.facemask.Box; 15 | 16 | import java.util.LinkedList; 17 | import java.util.List; 18 | 19 | public class OverlayView extends View { 20 | private final Paint paint; 21 | private final List callbacks = new LinkedList(); 22 | private List results; 23 | 24 | public static final int IMAGE_WIDTH = 1; 25 | public static final int IMAGE_HEIGHT = 1; 26 | 27 | public OverlayView(final Context context, final AttributeSet attrs) { 28 | super(context, attrs); 29 | paint = new Paint(); 30 | paint.setColor(Color.GREEN); 31 | paint.setStyle(Paint.Style.STROKE); 32 | paint.setTextSize(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 33 | 15, getResources().getDisplayMetrics())); 34 | } 35 | 36 | public void addCallback(final DrawCallback callback) { 37 | callbacks.add(callback); 38 | } 39 | 40 | @Override 41 | public synchronized void onDraw(final Canvas canvas) { 42 | for (final DrawCallback callback : callbacks) { 43 | callback.drawCallback(canvas); 44 | } 45 | 46 | if (results != null) { 47 | for (int i = 0; i < results.size(); i++) { 48 | if(results.get(i).deleted) { 49 | continue; 50 | } 51 | RectF box = reCalcSize(results.get(i)); 52 | String title = String.format("%s:%f", results.get(i).title, results.get(i).score); 53 | if(results.get(i).cls == 0) { 54 | paint.setColor(0xff00ff00); 55 | } else { 56 | paint.setColor(0xffff0000); 57 | } 58 | canvas.drawRect(box, paint); 59 | canvas.drawText(title, box.left, box.top, paint); 60 | } 61 | } 62 | } 63 | 64 | public void setResults(final List results) { 65 | this.results = results; 66 | postInvalidate(); 67 | } 68 | 69 | private RectF reCalcSize(Box box) { 70 | int padding = 5; 71 | float overlayViewHeight = this.getHeight(); 72 | float sizeMultiplier = Math.min((float) this.getWidth() / (float) IMAGE_WIDTH, 73 | overlayViewHeight / (float) IMAGE_HEIGHT); 74 | 75 | float offsetX = (this.getWidth() - IMAGE_WIDTH * sizeMultiplier) / 2; 76 | float offsetY = (overlayViewHeight - IMAGE_HEIGHT * sizeMultiplier) / 2; 77 | 78 | float left = Math.max(padding, sizeMultiplier * box.box[0] + offsetX); 79 | float top = Math.max(offsetY + padding, sizeMultiplier * box.box[1] + offsetY); 80 | 81 | float right = Math.min(box.box[2] * sizeMultiplier, this.getWidth() - padding); 82 | float bottom = Math.min(box.box[3] * sizeMultiplier + offsetY, this.getHeight() - padding); 83 | 84 | return new RectF(left, top, right, bottom); 85 | } 86 | 87 | /** 88 | * Interface defining the callback for client classes. 89 | */ 90 | public interface DrawCallback { 91 | void drawCallback(final Canvas canvas); 92 | } 93 | } 94 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/TextToSpeechActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view; 2 | 3 | import android.os.Bundle; 4 | import android.speech.tts.TextToSpeech; 5 | import android.util.Log; 6 | 7 | import java.util.Locale; 8 | 9 | import static com.example.androidfacemask.Config.LOGGING_TAG; 10 | 11 | 12 | public abstract class TextToSpeechActivity extends CameraActivity implements TextToSpeech.OnInitListener { 13 | private TextToSpeech textToSpeech; 14 | private String lastRecognizedClass = ""; 15 | 16 | @Override 17 | public void onInit(int status) { 18 | if (status == TextToSpeech.SUCCESS) { 19 | int result = textToSpeech.setLanguage(Locale.US); 20 | if (result == TextToSpeech.LANG_MISSING_DATA 21 | || result == TextToSpeech.LANG_NOT_SUPPORTED) { 22 | Log.e(LOGGING_TAG, "Text to speech error: This Language is not supported"); 23 | } 24 | } else { 25 | Log.e(LOGGING_TAG, "Text to speech: Initilization Failed!"); 26 | } 27 | } 28 | 29 | @Override 30 | protected void onCreate(Bundle savedInstanceState) { 31 | super.onCreate(savedInstanceState); 32 | textToSpeech = new TextToSpeech(this, this); 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/components/BorderedText.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view.components; 2 | 3 | import android.graphics.Canvas; 4 | import android.graphics.Color; 5 | import android.graphics.Paint; 6 | import android.graphics.Paint.Align; 7 | import android.graphics.Paint.Style; 8 | import android.graphics.Rect; 9 | import android.graphics.Typeface; 10 | 11 | import java.util.Vector; 12 | 13 | public class BorderedText { 14 | private final Paint interiorPaint; 15 | private final Paint exteriorPaint; 16 | 17 | private final float textSize; 18 | 19 | /** 20 | * Creates a left-aligned bordered text object with a white interior, and a black exterior with 21 | * the specified text size. 22 | * 23 | * @param textSize text size in pixels 24 | */ 25 | public BorderedText(final float textSize) { 26 | this(Color.WHITE, Color.BLACK, textSize); 27 | } 28 | 29 | /** 30 | * Create a bordered text object with the specified interior and exterior colors, text size and 31 | * alignment. 32 | * 33 | * @param interiorColor the interior text color 34 | * @param exteriorColor the exterior text color 35 | * @param textSize text size in pixels 36 | */ 37 | public BorderedText(final int interiorColor, final int exteriorColor, final float textSize) { 38 | interiorPaint = new Paint(); 39 | interiorPaint.setTextSize(textSize); 40 | interiorPaint.setColor(interiorColor); 41 | interiorPaint.setStyle(Style.FILL); 42 | interiorPaint.setAntiAlias(false); 43 | interiorPaint.setAlpha(255); 44 | 45 | exteriorPaint = new Paint(); 46 | exteriorPaint.setTextSize(textSize); 47 | exteriorPaint.setColor(exteriorColor); 48 | exteriorPaint.setStyle(Style.FILL_AND_STROKE); 49 | exteriorPaint.setStrokeWidth(textSize / 8); 50 | exteriorPaint.setAntiAlias(false); 51 | exteriorPaint.setAlpha(255); 52 | 53 | this.textSize = textSize; 54 | } 55 | 56 | public void setTypeface(Typeface typeface) { 57 | interiorPaint.setTypeface(typeface); 58 | exteriorPaint.setTypeface(typeface); 59 | } 60 | 61 | public void drawText(final Canvas canvas, final float posX, final float posY, final String text) { 62 | canvas.drawText(text, posX, posY, exteriorPaint); 63 | canvas.drawText(text, posX, posY, interiorPaint); 64 | } 65 | 66 | public void drawLines(Canvas canvas, final float posX, final float posY, Vector lines) { 67 | int lineNum = 0; 68 | for (final String line : lines) { 69 | drawText(canvas, posX, posY + getTextSize() * lineNum, line); 70 | ++lineNum; 71 | } 72 | } 73 | 74 | public void setInteriorColor(final int color) { 75 | interiorPaint.setColor(color); 76 | } 77 | 78 | public void setExteriorColor(final int color) { 79 | exteriorPaint.setColor(color); 80 | } 81 | 82 | public float getTextSize() { 83 | return textSize; 84 | } 85 | 86 | public void setAlpha(final int alpha) { 87 | interiorPaint.setAlpha(alpha); 88 | exteriorPaint.setAlpha(alpha); 89 | } 90 | 91 | public void getTextBounds( 92 | final String line, final int index, final int count, final Rect lineBounds) { 93 | interiorPaint.getTextBounds(line, index, count, lineBounds); 94 | } 95 | 96 | public void setTextAlign(final Align align) { 97 | interiorPaint.setTextAlign(align); 98 | exteriorPaint.setTextAlign(align); 99 | } 100 | } 101 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/java/com/example/androidfacemask/view/components/ErrorDialog.java: -------------------------------------------------------------------------------- 1 | package com.example.androidfacemask.view.components; 2 | 3 | import android.app.Activity; 4 | import android.app.AlertDialog; 5 | import android.app.Dialog; 6 | import android.app.DialogFragment; 7 | import android.content.DialogInterface; 8 | import android.os.Bundle; 9 | 10 | public class ErrorDialog extends DialogFragment { 11 | private static final String ARG_MESSAGE = "message"; 12 | 13 | public static ErrorDialog newInstance(final String message) { 14 | final ErrorDialog dialog = new ErrorDialog(); 15 | final Bundle args = new Bundle(); 16 | args.putString(ARG_MESSAGE, message); 17 | dialog.setArguments(args); 18 | return dialog; 19 | } 20 | 21 | @Override 22 | public Dialog onCreateDialog(final Bundle savedInstanceState) { 23 | final Activity activity = getActivity(); 24 | return new AlertDialog.Builder(activity) 25 | .setMessage(getArguments().getString(ARG_MESSAGE)) 26 | .setPositiveButton(android.R.string.ok, 27 | (final DialogInterface dialogInterface, final int i) -> activity.finish()) 28 | .create(); 29 | } 30 | } 31 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/layout/activity_camera.xml: -------------------------------------------------------------------------------- 1 | 2 | 9 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/layout/camera_connection_fragment.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 11 | 12 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- 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support Camera2 API. 6 | 7 | -------------------------------------------------------------------------------- /AndroidFaceMask/app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 |