├── .gitattributes
├── demo.gif
├── AddingMLModel.gif
├── VisionSample.xcodeproj
├── project.xcworkspace
│ └── contents.xcworkspacedata
└── project.pbxproj
├── .gitignore
├── README.md
├── LICENSE
└── VisionSample
├── Info.plist
├── Base.lproj
├── LaunchScreen.storyboard
└── Main.storyboard
├── Assets.xcassets
└── AppIcon.appiconset
│ └── Contents.json
├── AppDelegate.swift
└── ViewController.swift
/.gitattributes:
--------------------------------------------------------------------------------
1 | *.mlmodel filter=lfs diff=lfs merge=lfs -text
2 |
--------------------------------------------------------------------------------
/demo.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/atomic14/VisionCoreMLSample/HEAD/demo.gif
--------------------------------------------------------------------------------
/AddingMLModel.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/atomic14/VisionCoreMLSample/HEAD/AddingMLModel.gif
--------------------------------------------------------------------------------
/VisionSample.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
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1 |
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7 |
8 |
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/.gitignore:
--------------------------------------------------------------------------------
1 | # Xcode
2 | #
3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
4 |
5 | ## Build generated
6 | build/
7 | DerivedData/
8 |
9 | ## Various settings
10 | *.pbxuser
11 | !default.pbxuser
12 | *.mode1v3
13 | !default.mode1v3
14 | *.mode2v3
15 | !default.mode2v3
16 | *.perspectivev3
17 | !default.perspectivev3
18 | xcuserdata/
19 |
20 | ## Other
21 | *.moved-aside
22 | *.xccheckout
23 | *.xcscmblueprint
24 |
25 | ## Big machine learning models
26 | *.mlmodel
27 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Getting started
2 |
3 | [](https://www.youtube.com/watch?v=S33BNcnlxdU)
4 |
5 | Click [here](https://www.youtube.com/watch?v=S33BNcnlxdU) for a better demo.
6 |
7 | You can find a detailed breakdown of the code here: https://blog.cmgresearch.com/2017/06/22/vision-kit-and-coreml.html
8 |
9 | You will need the beta version of xCode and a device running the iOS 11 beta (make sure you only install the beta software on a test device!).
10 |
11 | ### CoreML Model
12 |
13 | ~~If you have [Git LFS](https://git-lfs.github.com) installed, the required CoreML will download as part of the git clone. Otherwise you can download the CoreML model - Resnet50.mlmodel from here:~~
14 |
15 | Unfortunately we've had to remove the model from Git LFS as we were running out bandwidth!
16 |
17 | You can download the CoreML model - Resnet50.mlmodel from here:
18 |
19 | [https://developer.apple.com/machine-learning/](https://developer.apple.com/machine-learning/) and drag the downloaded file into your project. Make sure you click on the "copy" checkbox.
20 |
21 | 
22 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | MIT License
2 |
3 | Copyright (c) 2017 Chris
4 |
5 | Permission is hereby granted, free of charge, to any person obtaining a copy
6 | of this software and associated documentation files (the "Software"), to deal
7 | in the Software without restriction, including without limitation the rights
8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 |
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 |
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 |
--------------------------------------------------------------------------------
/VisionSample/Info.plist:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 | CFBundleDevelopmentRegion
6 | $(DEVELOPMENT_LANGUAGE)
7 | CFBundleExecutable
8 | $(EXECUTABLE_NAME)
9 | CFBundleIdentifier
10 | $(PRODUCT_BUNDLE_IDENTIFIER)
11 | CFBundleInfoDictionaryVersion
12 | 6.0
13 | CFBundleName
14 | $(PRODUCT_NAME)
15 | CFBundlePackageType
16 | APPL
17 | CFBundleShortVersionString
18 | 1.0
19 | CFBundleVersion
20 | 1
21 | LSRequiresIPhoneOS
22 |
23 | NSCameraUsageDescription
24 | AI Man
25 | UILaunchStoryboardName
26 | LaunchScreen
27 | UIMainStoryboardFile
28 | Main
29 | UIRequiredDeviceCapabilities
30 |
31 | armv7
32 |
33 | UISupportedInterfaceOrientations
34 |
35 | UIInterfaceOrientationPortrait
36 |
37 | UISupportedInterfaceOrientations~ipad
38 |
39 | UIInterfaceOrientationPortrait
40 | UIInterfaceOrientationPortraitUpsideDown
41 | UIInterfaceOrientationLandscapeLeft
42 | UIInterfaceOrientationLandscapeRight
43 |
44 |
45 |
46 |
--------------------------------------------------------------------------------
/VisionSample/Base.lproj/LaunchScreen.storyboard:
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27 |
28 |
--------------------------------------------------------------------------------
/VisionSample/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
1 | {
2 | "images" : [
3 | {
4 | "idiom" : "iphone",
5 | "size" : "20x20",
6 | "scale" : "2x"
7 | },
8 | {
9 | "idiom" : "iphone",
10 | "size" : "20x20",
11 | "scale" : "3x"
12 | },
13 | {
14 | "idiom" : "iphone",
15 | "size" : "29x29",
16 | "scale" : "2x"
17 | },
18 | {
19 | "idiom" : "iphone",
20 | "size" : "29x29",
21 | "scale" : "3x"
22 | },
23 | {
24 | "idiom" : "iphone",
25 | "size" : "40x40",
26 | "scale" : "2x"
27 | },
28 | {
29 | "idiom" : "iphone",
30 | "size" : "40x40",
31 | "scale" : "3x"
32 | },
33 | {
34 | "idiom" : "iphone",
35 | "size" : "60x60",
36 | "scale" : "2x"
37 | },
38 | {
39 | "idiom" : "iphone",
40 | "size" : "60x60",
41 | "scale" : "3x"
42 | },
43 | {
44 | "idiom" : "ipad",
45 | "size" : "20x20",
46 | "scale" : "1x"
47 | },
48 | {
49 | "idiom" : "ipad",
50 | "size" : "20x20",
51 | "scale" : "2x"
52 | },
53 | {
54 | "idiom" : "ipad",
55 | "size" : "29x29",
56 | "scale" : "1x"
57 | },
58 | {
59 | "idiom" : "ipad",
60 | "size" : "29x29",
61 | "scale" : "2x"
62 | },
63 | {
64 | "idiom" : "ipad",
65 | "size" : "40x40",
66 | "scale" : "1x"
67 | },
68 | {
69 | "idiom" : "ipad",
70 | "size" : "40x40",
71 | "scale" : "2x"
72 | },
73 | {
74 | "idiom" : "ipad",
75 | "size" : "76x76",
76 | "scale" : "1x"
77 | },
78 | {
79 | "idiom" : "ipad",
80 | "size" : "76x76",
81 | "scale" : "2x"
82 | },
83 | {
84 | "idiom" : "ipad",
85 | "size" : "83.5x83.5",
86 | "scale" : "2x"
87 | },
88 | {
89 | "idiom" : "ios-marketing",
90 | "size" : "1024x1024",
91 | "scale" : "1x"
92 | }
93 | ],
94 | "info" : {
95 | "version" : 1,
96 | "author" : "xcode"
97 | }
98 | }
--------------------------------------------------------------------------------
/VisionSample/AppDelegate.swift:
--------------------------------------------------------------------------------
1 | //
2 | // AppDelegate.swift
3 | // VisionSample
4 | //
5 | // Created by chris on 19/06/2017.
6 | // Copyright © 2017 MRM Brand Ltd. All rights reserved.
7 | //
8 |
9 | import UIKit
10 |
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 |
14 | var window: UIWindow?
15 |
16 |
17 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
18 | // Override point for customization after application launch.
19 | return true
20 | }
21 |
22 | func applicationWillResignActive(_ application: UIApplication) {
23 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
24 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
25 | }
26 |
27 | func applicationDidEnterBackground(_ application: UIApplication) {
28 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
29 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
30 | }
31 |
32 | func applicationWillEnterForeground(_ application: UIApplication) {
33 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
34 | }
35 |
36 | func applicationDidBecomeActive(_ application: UIApplication) {
37 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
38 | }
39 |
40 | func applicationWillTerminate(_ application: UIApplication) {
41 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
42 | }
43 |
44 |
45 | }
46 |
47 |
--------------------------------------------------------------------------------
/VisionSample/ViewController.swift:
--------------------------------------------------------------------------------
1 | //
2 | // ViewController.swift
3 | // VisionSample
4 | //
5 | // Created by chris on 19/06/2017.
6 | // Copyright © 2017 MRM Brand Ltd. All rights reserved.
7 | //
8 |
9 | import UIKit
10 | import AVFoundation
11 | import Vision
12 |
13 | class ViewController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
14 | // video capture session
15 | let session = AVCaptureSession()
16 | // preview layer
17 | var previewLayer: AVCaptureVideoPreviewLayer!
18 | // queue for processing video frames
19 | let captureQueue = DispatchQueue(label: "captureQueue")
20 | // overlay layer
21 | var gradientLayer: CAGradientLayer!
22 | // vision request
23 | var visionRequests = [VNRequest]()
24 |
25 | var recognitionThreshold : Float = 0.25
26 |
27 | @IBOutlet weak var thresholdStackView: UIStackView!
28 | @IBOutlet weak var threshholdLabel: UILabel!
29 | @IBOutlet weak var threshholdSlider: UISlider!
30 |
31 | @IBOutlet weak var previewView: UIView!
32 | @IBOutlet weak var resultView: UILabel!
33 |
34 | override func viewDidLoad() {
35 | super.viewDidLoad()
36 | // get hold of the default video camera
37 | guard let camera = AVCaptureDevice.default(for: .video) else {
38 | fatalError("No video camera available")
39 | }
40 | do {
41 | // add the preview layer
42 | previewLayer = AVCaptureVideoPreviewLayer(session: session)
43 | previewView.layer.addSublayer(previewLayer)
44 | // add a slight gradient overlay so we can read the results easily
45 | gradientLayer = CAGradientLayer()
46 | gradientLayer.colors = [
47 | UIColor.init(red: 0, green: 0, blue: 0, alpha: 0.7).cgColor,
48 | UIColor.init(red: 0, green: 0, blue: 0, alpha: 0.0).cgColor,
49 | ]
50 | gradientLayer.locations = [0.0, 0.3]
51 | self.previewView.layer.addSublayer(gradientLayer)
52 |
53 | // create the capture input and the video output
54 | let cameraInput = try AVCaptureDeviceInput(device: camera)
55 |
56 | let videoOutput = AVCaptureVideoDataOutput()
57 | videoOutput.setSampleBufferDelegate(self, queue: captureQueue)
58 | videoOutput.alwaysDiscardsLateVideoFrames = true
59 | videoOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_32BGRA]
60 | session.sessionPreset = .high
61 |
62 | // wire up the session
63 | session.addInput(cameraInput)
64 | session.addOutput(videoOutput)
65 |
66 | // make sure we are in portrait mode
67 | let conn = videoOutput.connection(with: .video)
68 | conn?.videoOrientation = .portrait
69 |
70 | // Start the session
71 | session.startRunning()
72 |
73 | // set up the vision model
74 | guard let resNet50Model = try? VNCoreMLModel(for: Resnet50().model) else {
75 | fatalError("Could not load model")
76 | }
77 | // set up the request using our vision model
78 | let classificationRequest = VNCoreMLRequest(model: resNet50Model, completionHandler: handleClassifications)
79 | classificationRequest.imageCropAndScaleOption = .centerCrop
80 | visionRequests = [classificationRequest]
81 | } catch {
82 | fatalError(error.localizedDescription)
83 | }
84 |
85 | updateThreshholdLabel()
86 | }
87 |
88 | func updateThreshholdLabel () {
89 | self.threshholdLabel.text = "Threshold: " + String(format: "%.2f", recognitionThreshold)
90 | }
91 |
92 | override func viewDidLayoutSubviews() {
93 | super.viewDidLayoutSubviews()
94 | previewLayer.frame = self.previewView.bounds;
95 | gradientLayer.frame = self.previewView.bounds;
96 |
97 | let orientation: UIDeviceOrientation = UIDevice.current.orientation;
98 | switch (orientation) {
99 | case .portrait:
100 | previewLayer?.connection?.videoOrientation = .portrait
101 | case .landscapeRight:
102 | previewLayer?.connection?.videoOrientation = .landscapeLeft
103 | case .landscapeLeft:
104 | previewLayer?.connection?.videoOrientation = .landscapeRight
105 | case .portraitUpsideDown:
106 | previewLayer?.connection?.videoOrientation = .portraitUpsideDown
107 | default:
108 | previewLayer?.connection?.videoOrientation = .portrait
109 | }
110 | }
111 |
112 | func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
113 | guard let pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else {
114 | return
115 | }
116 |
117 | connection.videoOrientation = .portrait
118 |
119 | var requestOptions:[VNImageOption: Any] = [:]
120 |
121 | if let cameraIntrinsicData = CMGetAttachment(sampleBuffer, kCMSampleBufferAttachmentKey_CameraIntrinsicMatrix, nil) {
122 | requestOptions = [.cameraIntrinsics: cameraIntrinsicData]
123 | }
124 |
125 | // for orientation see kCGImagePropertyOrientation
126 | let imageRequestHandler = VNImageRequestHandler(cvPixelBuffer: pixelBuffer, orientation: .upMirrored, options: requestOptions)
127 | do {
128 | try imageRequestHandler.perform(self.visionRequests)
129 | } catch {
130 | print(error)
131 | }
132 | }
133 |
134 | @IBAction func userTapped(sender: Any) {
135 | self.thresholdStackView.isHidden = !self.thresholdStackView.isHidden
136 | }
137 |
138 | @IBAction func sliderValueChanged(slider: UISlider) {
139 | self.recognitionThreshold = slider.value
140 | updateThreshholdLabel()
141 | }
142 |
143 | func handleClassifications(request: VNRequest, error: Error?) {
144 | if let theError = error {
145 | print("Error: \(theError.localizedDescription)")
146 | return
147 | }
148 | guard let observations = request.results else {
149 | print("No results")
150 | return
151 | }
152 |
153 | let classifications = observations[0...4] // top 4 results
154 | .flatMap({ $0 as? VNClassificationObservation })
155 | .flatMap({$0.confidence > recognitionThreshold ? $0 : nil})
156 | .map({ "\($0.identifier) \(String(format:"%.2f", $0.confidence))" })
157 | .joined(separator: "\n")
158 |
159 | DispatchQueue.main.async {
160 | self.resultView.text = classifications
161 | }
162 |
163 | }
164 | }
165 |
166 |
--------------------------------------------------------------------------------
/VisionSample/Base.lproj/Main.storyboard:
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--------------------------------------------------------------------------------
/VisionSample.xcodeproj/project.pbxproj:
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