lines) {
85 | int lineNum = 0;
86 | for (final String line : lines) {
87 | drawText(canvas, posX, posY - getTextSize() * (lines.size() - lineNum - 1), line);
88 | // drawText(canvas, posX, posY+ getTextSize() * (lines.size() - lineNum - 1), line);
89 |
90 | ++lineNum;
91 | }
92 | }
93 |
94 | public void setInteriorColor(final int color) {
95 | interiorPaint.setColor(color);
96 | }
97 |
98 | public void setExteriorColor(final int color) {
99 | exteriorPaint.setColor(color);
100 | }
101 |
102 | public float getTextSize() {
103 | return textSize;
104 | }
105 |
106 | public void setAlpha(final int alpha) {
107 | interiorPaint.setAlpha(alpha);
108 | exteriorPaint.setAlpha(alpha);
109 | }
110 |
111 | public void getTextBounds(
112 | final String line, final int index, final int count, final Rect lineBounds) {
113 | interiorPaint.getTextBounds(line, index, count, lineBounds);
114 | }
115 |
116 | public void setTextAlign(final Align align) {
117 | interiorPaint.setTextAlign(align);
118 | exteriorPaint.setTextAlign(align);
119 | }
120 | }
121 |
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/tf_lite_android/demo/app/src/main/java/me/ndres/tflitedemo/CameraActivity.java:
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1 | /* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
2 |
3 | Licensed under the Apache License, Version 2.0 (the "License");
4 | you may not use this file except in compliance with the License.
5 | You may obtain a copy of the License at
6 |
7 | http://www.apache.org/licenses/LICENSE-2.0
8 |
9 | Unless required by applicable law or agreed to in writing, software
10 | distributed under the License is distributed on an "AS IS" BASIS,
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | See the License for the specific language governing permissions and
13 | limitations under the License.
14 | ==============================================================================*/
15 |
16 | package me.ndres.tflitedemo;
17 |
18 | import android.app.Activity;
19 | import android.os.Bundle;
20 |
21 | /** Main {@code Activity} class for the Camera app. */
22 | public class CameraActivity extends Activity {
23 |
24 | @Override
25 | protected void onCreate(Bundle savedInstanceState) {
26 | super.onCreate(savedInstanceState);
27 | setContentView(R.layout.activity_camera);
28 | if (null == savedInstanceState) {
29 | getFragmentManager()
30 | .beginTransaction()
31 | .replace(R.id.container, Camera2BasicFragment.newInstance())
32 | .commit();
33 | }
34 | }
35 | }
36 |
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/tf_lite_android/demo/app/src/main/java/me/ndres/tflitedemo/GpuDelegateHelper.java:
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1 | /* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
2 |
3 | Licensed under the Apache License, Version 2.0 (the "License");
4 | you may not use this file except in compliance with the License.
5 | You may obtain a copy of the License at
6 |
7 | http://www.apache.org/licenses/LICENSE-2.0
8 |
9 | Unless required by applicable law or agreed to in writing, software
10 | distributed under the License is distributed on an "AS IS" BASIS,
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | See the License for the specific language governing permissions and
13 | limitations under the License.
14 | ==============================================================================*/
15 |
16 | package me.ndres.tflitedemo;
17 |
18 | import org.tensorflow.lite.Delegate;
19 |
20 | /**
21 | * Helper class for {@code GpuDelegate}.
22 | *
23 | * WARNING: This is an experimental API and subject to change.
24 | */
25 | public class GpuDelegateHelper {
26 | private GpuDelegateHelper() {}
27 |
28 | /** Checks whether {@code GpuDelegate} is available. */
29 | public static boolean isGpuDelegateAvailable() {
30 | try {
31 | Class.forName("org.tensorflow.lite.experimental.GpuDelegate");
32 | return true;
33 | } catch (Exception e) {
34 | return false;
35 | }
36 | }
37 |
38 | /** Returns an instance of {@code GpuDelegate} if available. */
39 | public static Delegate createGpuDelegate() {
40 | try {
41 | return Class.forName("org.tensorflow.lite.experimental.GpuDelegate")
42 | .asSubclass(Delegate.class)
43 | .getDeclaredConstructor()
44 | .newInstance();
45 | } catch (Exception e) {
46 | throw new IllegalStateException(e);
47 | }
48 | }
49 | }
50 |
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/tf_lite_android/demo/app/src/main/java/me/ndres/tflitedemo/ImageClassifierFloatInception.java:
--------------------------------------------------------------------------------
1 | /* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
2 |
3 | Licensed under the Apache License, Version 2.0 (the "License");
4 | you may not use this file except in compliance with the License.
5 | You may obtain a copy of the License at
6 |
7 | http://www.apache.org/licenses/LICENSE-2.0
8 |
9 | Unless required by applicable law or agreed to in writing, software
10 | distributed under the License is distributed on an "AS IS" BASIS,
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | See the License for the specific language governing permissions and
13 | limitations under the License.
14 | ==============================================================================*/
15 |
16 | package me.ndres.tflitedemo;
17 |
18 | import android.app.Activity;
19 |
20 | import java.io.IOException;
21 |
22 | /**
23 | * This classifier works with the Inception-v3 slim model.
24 | * It applies floating point inference rather than using a quantized model.
25 | */
26 | public class ImageClassifierFloatInception extends ImageClassifier {
27 |
28 | /**
29 | * The inception net requires additional normalization of the used input.
30 | */
31 | private static final int IMAGE_MEAN = 128;
32 | private static final float IMAGE_STD = 128.0f;
33 |
34 | /**
35 | * An array to hold inference results, to be feed into Tensorflow Lite as outputs.
36 | * This isn't part of the super class, because we need a primitive array here.
37 | */
38 | private float[][] labelProbArray = null;
39 |
40 | /**
41 | * Initializes an {@code ImageClassifier}.
42 | *
43 | * @param activity
44 | */
45 | ImageClassifierFloatInception(Activity activity) throws IOException {
46 | super(activity);
47 | labelProbArray = new float[1][getNumLabels()];
48 | }
49 |
50 | @Override
51 | protected String getModelPath() {
52 | // you can download this file from
53 | // https://storage.googleapis.com/download.tensorflow.org/models/tflite/inception_v3_slim_2016_android_2017_11_10.zip
54 | return "inceptionv3_slim_2016.tflite";
55 | }
56 |
57 | @Override
58 | protected String getLabelPath() {
59 | return "labels_imagenet_slim.txt";
60 | }
61 |
62 | @Override
63 | protected int getImageSizeX() {
64 | return 299;
65 | }
66 |
67 | @Override
68 | protected int getImageSizeY() {
69 | return 299;
70 | }
71 |
72 | @Override
73 | protected int getNumBytesPerChannel() {
74 | // a 32bit float value requires 4 bytes
75 | return 4;
76 | }
77 |
78 | @Override
79 | protected void addPixelValue(int pixelValue) {
80 | imgData.putFloat((((pixelValue >> 16) & 0xFF) - IMAGE_MEAN) / IMAGE_STD);
81 | imgData.putFloat((((pixelValue >> 8) & 0xFF) - IMAGE_MEAN) / IMAGE_STD);
82 | imgData.putFloat(((pixelValue & 0xFF) - IMAGE_MEAN) / IMAGE_STD);
83 | }
84 |
85 | @Override
86 | protected float getProbability(int labelIndex) {
87 | return labelProbArray[0][labelIndex];
88 | }
89 |
90 | @Override
91 | protected void setProbability(int labelIndex, Number value) {
92 | labelProbArray[0][labelIndex] = value.floatValue();
93 | }
94 |
95 | @Override
96 | protected float getNormalizedProbability(int labelIndex) {
97 | // TODO the following value isn't in [0,1] yet, but may be greater. Why?
98 | return getProbability(labelIndex);
99 | }
100 |
101 | @Override
102 | protected void runInference() {
103 | tflite.run(imgData, labelProbArray);
104 | }
105 | }
106 |
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/tf_lite_android/demo/app/src/main/java/me/ndres/tflitedemo/ImageClassifierFloatMobileNet.java:
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1 | /* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
2 |
3 | Licensed under the Apache License, Version 2.0 (the "License");
4 | you may not use this file except in compliance with the License.
5 | You may obtain a copy of the License at
6 |
7 | http://www.apache.org/licenses/LICENSE-2.0
8 |
9 | Unless required by applicable law or agreed to in writing, software
10 | distributed under the License is distributed on an "AS IS" BASIS,
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | See the License for the specific language governing permissions and
13 | limitations under the License.
14 | ==============================================================================*/
15 |
16 | package me.ndres.tflitedemo;
17 |
18 | import android.app.Activity;
19 | import java.io.IOException;
20 |
21 | /** This classifier works with the float MobileNet model. */
22 | public class ImageClassifierFloatMobileNet extends ImageClassifier {
23 |
24 | /**
25 | * An array to hold inference results, to be feed into Tensorflow Lite as outputs. This isn't part
26 | * of the super class, because we need a primitive array here.
27 | */
28 | private float[][] labelProbArray = null;
29 |
30 | /**
31 | * Initializes an {@code ImageClassifierFloatMobileNet}.
32 | *
33 | * @param activity
34 | */
35 | ImageClassifierFloatMobileNet(Activity activity) throws IOException {
36 | super(activity);
37 | labelProbArray = new float[1][getNumLabels()];
38 | }
39 |
40 | @Override
41 | protected String getModelPath() {
42 | // you can download this file from
43 | // see build.gradle for where to obtain this file. It should be auto
44 | // downloaded into assets.
45 | return "converted_model.tflite";
46 | }
47 |
48 | @Override
49 | protected String getLabelPath() {
50 | return "labels_emotion.txt";
51 | }
52 |
53 | @Override
54 | protected int getImageSizeX() {
55 | return 48;
56 | }
57 |
58 | @Override
59 | protected int getImageSizeY() {
60 | return 48;
61 | }
62 |
63 | @Override
64 | protected int getNumBytesPerChannel() {
65 | return 4; // Float.SIZE / Byte.SIZE;
66 | }
67 |
68 | @Override
69 | protected void addPixelValue(int pixelValue) {
70 | float ret = (((pixelValue >> 16) & 0xFF) + ((pixelValue >> 8) & 0xFF) + (pixelValue & 0xFF)) / 3.0f / 127.0f;
71 | imgData.putFloat(ret - 1.0f);
72 | }
73 |
74 | @Override
75 | protected float getProbability(int labelIndex) {
76 | return labelProbArray[0][labelIndex];
77 | }
78 |
79 | @Override
80 | protected void setProbability(int labelIndex, Number value) {
81 | labelProbArray[0][labelIndex] = value.floatValue();
82 | }
83 |
84 | @Override
85 | protected float getNormalizedProbability(int labelIndex) {
86 | return labelProbArray[0][labelIndex];
87 | }
88 |
89 | @Override
90 | protected void runInference() {
91 | tflite.run(imgData, labelProbArray);
92 | }
93 | }
94 |
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/tf_lite_android/demo/app/src/main/java/me/ndres/tflitedemo/ImageClassifierQuantizedMobileNet.java:
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1 | /* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
2 |
3 | Licensed under the Apache License, Version 2.0 (the "License");
4 | you may not use this file except in compliance with the License.
5 | You may obtain a copy of the License at
6 |
7 | http://www.apache.org/licenses/LICENSE-2.0
8 |
9 | Unless required by applicable law or agreed to in writing, software
10 | distributed under the License is distributed on an "AS IS" BASIS,
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | See the License for the specific language governing permissions and
13 | limitations under the License.
14 | ==============================================================================*/
15 |
16 | package me.ndres.tflitedemo;
17 |
18 | import android.app.Activity;
19 | import java.io.IOException;
20 |
21 | /**
22 | * This classifier works with the quantized MobileNet model.
23 | */
24 | public class ImageClassifierQuantizedMobileNet extends ImageClassifier {
25 |
26 | /**
27 | * An array to hold inference results, to be feed into Tensorflow Lite as outputs.
28 | * This isn't part of the super class, because we need a primitive array here.
29 | */
30 | private byte[][] labelProbArray = null;
31 |
32 | /**
33 | * Initializes an {@code ImageClassifier}.
34 | *
35 | * @param activity
36 | */
37 | ImageClassifierQuantizedMobileNet(Activity activity) throws IOException {
38 | super(activity);
39 | labelProbArray = new byte[1][getNumLabels()];
40 | }
41 |
42 | @Override
43 | protected String getModelPath() {
44 | // you can download this file from
45 | // see build.gradle for where to obtain this file. It should be auto
46 | // downloaded into assets.
47 | return "mobilenet_v1_1.0_224_quant.tflite";
48 | }
49 |
50 | @Override
51 | protected String getLabelPath() {
52 | return "labels_emotion.txt";
53 | }
54 |
55 | @Override
56 | protected int getImageSizeX() {
57 | return 224;
58 | }
59 |
60 | @Override
61 | protected int getImageSizeY() {
62 | return 224;
63 | }
64 |
65 | @Override
66 | protected int getNumBytesPerChannel() {
67 | // the quantized model uses a single byte only
68 | return 1;
69 | }
70 |
71 | @Override
72 | protected void addPixelValue(int pixelValue) {
73 | imgData.put((byte) ((pixelValue >> 16) & 0xFF));
74 | imgData.put((byte) ((pixelValue >> 8) & 0xFF));
75 | imgData.put((byte) (pixelValue & 0xFF));
76 | }
77 |
78 | @Override
79 | protected float getProbability(int labelIndex) {
80 | return labelProbArray[0][labelIndex];
81 | }
82 |
83 | @Override
84 | protected void setProbability(int labelIndex, Number value) {
85 | labelProbArray[0][labelIndex] = value.byteValue();
86 | }
87 |
88 | @Override
89 | protected float getNormalizedProbability(int labelIndex) {
90 | return (labelProbArray[0][labelIndex] & 0xff) / 255.0f;
91 | }
92 |
93 | @Override
94 | protected void runInference() {
95 | tflite.run(imgData, labelProbArray);
96 | }
97 | }
98 |
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/tf_lite_android/demo/app/src/main/java/me/ndres/tflitedemo/OverlayView.java:
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1 | /* Copyright 2016 The TensorFlow Authors. All Rights Reserved.
2 |
3 | Licensed under the Apache License, Version 2.0 (the "License");
4 | you may not use this file except in compliance with the License.
5 | You may obtain a copy of the License at
6 |
7 | http://www.apache.org/licenses/LICENSE-2.0
8 |
9 | Unless required by applicable law or agreed to in writing, software
10 | distributed under the License is distributed on an "AS IS" BASIS,
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | See the License for the specific language governing permissions and
13 | limitations under the License.
14 | ==============================================================================*/
15 |
16 | package me.ndres.tflitedemo;
17 |
18 | import android.content.Context;
19 | import android.graphics.Canvas;
20 | import android.util.AttributeSet;
21 | import android.view.View;
22 |
23 | import java.util.LinkedList;
24 | import java.util.List;
25 |
26 | /**
27 | * A simple View providing a render callback to other classes.
28 | */
29 | public class OverlayView extends View {
30 | private final List callbacks = new LinkedList();
31 |
32 | public OverlayView(final Context context, final AttributeSet attrs) {
33 | super(context, attrs);
34 | }
35 |
36 | /**
37 | * Interface defining the callback for client classes.
38 | */
39 | public interface DrawCallback {
40 | public void drawCallback(final Canvas canvas);
41 | }
42 |
43 | public void addCallback(final DrawCallback callback) {
44 | callbacks.add(callback);
45 | }
46 |
47 | @Override
48 | public synchronized void draw(final Canvas canvas) {
49 | for (final DrawCallback callback : callbacks) {
50 | callback.drawCallback(canvas);
51 | }
52 | }
53 | }
54 |
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1 |
2 |
3 |
4 |
5 |
48 |
49 | TensorFlow.js: Emotion detection
50 |
51 |
52 |
53 | Description
54 |
55 |
56 |
57 |
58 |
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64 |
65 |
66 |
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