├── CoreMLCatsDemo.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   └── contents.xcworkspacedata
    └── xcuserdata
    │   └── dima.xcuserdatad
    │       ├── xcdebugger
    │           └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │           └── xcschememanagement.plist
├── CoreMLCatsDemo
    ├── AppDelegate.swift
    ├── Assets.xcassets
    │   └── AppIcon.appiconset
    │   │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── Inceptionv3.mlmodel
    ├── Info.plist
    └── ViewController.swift
├── README.md
└── media
    └── demo.gif


/CoreMLCatsDemo.xcodeproj/project.pbxproj:
--------------------------------------------------------------------------------
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328 | 


--------------------------------------------------------------------------------
/CoreMLCatsDemo.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:CoreMLCatsDemo.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/CoreMLCatsDemo.xcodeproj/xcuserdata/dima.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Bucket
3 |    type = "1"
4 |    version = "2.0">
5 | </Bucket>
6 | 


--------------------------------------------------------------------------------
/CoreMLCatsDemo.xcodeproj/xcuserdata/dima.xcuserdatad/xcschemes/xcschememanagement.plist:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>CoreMLCatsDemo.xcscheme</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | </dict>
14 | </plist>
15 | 


--------------------------------------------------------------------------------
/CoreMLCatsDemo/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  CoreMLCatsDemo
 4 | //
 5 | //  Created by Dmitriy Rozov on 04/07/2017.
 6 | //  Copyright © 2017 Dmitriy Rozov. 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 | 


--------------------------------------------------------------------------------
/CoreMLCatsDemo/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 | }


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/CoreMLCatsDemo/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11134" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11106"/>
 5 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 6 |     </dependencies>
 7 |     <scenes>
 8 |         <!--View Controller-->
 9 |         <scene sceneID="EHf-IW-A2E">
10 |             <objects>
11 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
12 |                     <layoutGuides>
13 |                         <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
14 |                         <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
15 |                     </layoutGuides>
16 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
17 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
18 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
19 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
20 |                     </view>
21 |                 </viewController>
22 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
23 |             </objects>
24 |             <point key="canvasLocation" x="53" y="375"/>
25 |         </scene>
26 |     </scenes>
27 | </document>
28 | 


--------------------------------------------------------------------------------
/CoreMLCatsDemo/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.17" systemVersion="16F73" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
 3 |     <device id="retina4_0" orientation="portrait">
 4 |         <adaptation id="fullscreen"/>
 5 |     </device>
 6 |     <dependencies>
 7 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.14"/>
 8 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 9 |     </dependencies>
10 |     <scenes>
11 |         <!--View Controller-->
12 |         <scene sceneID="tne-QT-ifu">
13 |             <objects>
14 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="CoreMLCatsDemo" customModuleProvider="target" sceneMemberID="viewController">
15 |                     <layoutGuides>
16 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
17 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
18 |                     </layoutGuides>
19 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
20 |                         <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
21 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
22 |                         <subviews>
23 |                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Z9c-M4-79D">
24 |                                 <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
25 |                                 <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
26 |                             </view>
27 |                             <visualEffectView opaque="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="KxU-xY-sGx">
28 |                                 <rect key="frame" x="0.0" y="516" width="320" height="51.5"/>
29 |                                 <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" id="UeT-H4-S4h">
30 |                                     <rect key="frame" x="0.0" y="0.0" width="320" height="51.5"/>
31 |                                     <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
32 |                                 </view>
33 |                                 <blurEffect style="dark"/>
34 |                             </visualEffectView>
35 |                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Найди кота!" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="JNM-HN-IwO">
36 |                                 <rect key="frame" x="0.0" y="516" width="320" height="51.5"/>
37 |                                 <fontDescription key="fontDescription" type="boldSystem" pointSize="43"/>
38 |                                 <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="deviceRGB"/>
39 |                                 <nil key="highlightedColor"/>
40 |                             </label>
41 |                         </subviews>
42 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
43 |                         <constraints>
44 |                             <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="Z9c-M4-79D" secondAttribute="bottom" id="CSI-XM-1bc"/>
45 |                             <constraint firstAttribute="trailing" secondItem="JNM-HN-IwO" secondAttribute="trailing" id="Fhg-mg-bEc"/>
46 |                             <constraint firstItem="JNM-HN-IwO" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" id="MsF-2O-Cw5"/>
47 |                             <constraint firstItem="Z9c-M4-79D" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" id="MvE-vr-pIQ"/>
48 |                             <constraint firstItem="KxU-xY-sGx" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" id="NV0-rX-98A"/>
49 |                             <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="JNM-HN-IwO" secondAttribute="bottom" id="Y9r-Ry-rxo"/>
50 |                             <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="KxU-xY-sGx" secondAttribute="bottom" id="eEE-MT-iQr"/>
51 |                             <constraint firstItem="Z9c-M4-79D" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" id="h0x-jT-NCy"/>
52 |                             <constraint firstItem="KxU-xY-sGx" firstAttribute="height" secondItem="JNM-HN-IwO" secondAttribute="height" id="psX-AR-RmA"/>
53 |                             <constraint firstAttribute="trailing" secondItem="Z9c-M4-79D" secondAttribute="trailing" id="puN-ak-Jxr"/>
54 |                             <constraint firstAttribute="trailing" secondItem="KxU-xY-sGx" secondAttribute="trailing" id="wxY-OK-xh2"/>
55 |                         </constraints>
56 |                     </view>
57 |                     <connections>
58 |                         <outlet property="resultLabel" destination="JNM-HN-IwO" id="vd1-7a-PZC"/>
59 |                         <outlet property="resultView" destination="Z9c-M4-79D" id="dbB-GH-SPq"/>
60 |                     </connections>
61 |                 </viewController>
62 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
63 |             </objects>
64 |             <point key="canvasLocation" x="136.875" y="138.38028169014083"/>
65 |         </scene>
66 |     </scenes>
67 | </document>
68 | 


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/CoreMLCatsDemo/Inceptionv3.mlmodel:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/dmrozov/CoreMLCatsDemo/105c2759a859b36d25e874adeff6790a7f3cfce1/CoreMLCatsDemo/Inceptionv3.mlmodel


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/CoreMLCatsDemo/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>NSCameraUsageDescription</key>
24 | 	<string>AI Man</string>
25 | 	<key>UILaunchStoryboardName</key>
26 | 	<string>LaunchScreen</string>
27 | 	<key>UIMainStoryboardFile</key>
28 | 	<string>Main</string>
29 | 	<key>UIRequiredDeviceCapabilities</key>
30 | 	<array>
31 | 		<string>armv7</string>
32 | 	</array>
33 | 	<key>UISupportedInterfaceOrientations</key>
34 | 	<array>
35 | 		<string>UIInterfaceOrientationPortrait</string>
36 | 	</array>
37 | 	<key>UISupportedInterfaceOrientations~ipad</key>
38 | 	<array>
39 | 		<string>UIInterfaceOrientationPortrait</string>
40 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
41 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
42 | 		<string>UIInterfaceOrientationLandscapeRight</string>
43 | 	</array>
44 | </dict>
45 | </plist>
46 | 


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/CoreMLCatsDemo/ViewController.swift:
--------------------------------------------------------------------------------
  1 | //
  2 | //  ViewController.swift
  3 | //  CoreMLCatsDemo
  4 | //
  5 | //  Created by Dmitriy Rozov on 04/07/2017.
  6 | //  Copyright © 2017 Dmitriy Rozov. All rights reserved.
  7 | //
  8 | 
  9 | import UIKit
 10 | import AVFoundation
 11 | import Vision
 12 | 
 13 | class ViewController: UIViewController {
 14 | 
 15 |     @IBOutlet var resultLabel: UILabel!
 16 |     @IBOutlet var resultView: UIView!
 17 | 
 18 |     let session = AVCaptureSession()
 19 |     var previewLayer: AVCaptureVideoPreviewLayer!
 20 |     let captureQueue = DispatchQueue(label: "captureQueue")
 21 |     var visionRequests = [VNRequest]()
 22 | 
 23 |     override func viewDidLoad() {
 24 |         super.viewDidLoad()
 25 | 
 26 |         guard let camera = AVCaptureDevice.default(for: .video) else {
 27 |             return
 28 |         }
 29 |         do {
 30 |             previewLayer = AVCaptureVideoPreviewLayer(session: session)
 31 |             resultView.layer.addSublayer(previewLayer)
 32 | 
 33 |             let cameraInput = try AVCaptureDeviceInput(device: camera)
 34 |             let videoOutput = AVCaptureVideoDataOutput()
 35 |             videoOutput.setSampleBufferDelegate(self, queue: captureQueue)
 36 |             videoOutput.alwaysDiscardsLateVideoFrames = true
 37 |             videoOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_32BGRA]
 38 | 
 39 |             session.sessionPreset = .high
 40 |             session.addInput(cameraInput)
 41 |             session.addOutput(videoOutput)
 42 | 
 43 |             let connection = videoOutput.connection(with: .video)
 44 |             connection?.videoOrientation = .portrait
 45 |             session.startRunning()
 46 | 
 47 |             guard let visionModel = try? VNCoreMLModel(for: Inceptionv3().model) else {
 48 |                 fatalError("Could not load model")
 49 |             }
 50 | 
 51 |             let classificationRequest = VNCoreMLRequest(model: visionModel, completionHandler: handleClassifications)
 52 |             classificationRequest.imageCropAndScaleOption = VNImageCropAndScaleOptionCenterCrop
 53 |             visionRequests = [classificationRequest]
 54 |         } catch {
 55 |             let alertController = UIAlertController(title: nil, message: error.localizedDescription, preferredStyle: .alert)
 56 |             alertController.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
 57 |             present(alertController, animated: true, completion: nil)
 58 |         }
 59 |     }
 60 | 
 61 |     override func viewDidLayoutSubviews() {
 62 |         super.viewDidLayoutSubviews()
 63 |         previewLayer.frame = view.frame
 64 |     }
 65 | 
 66 |     private func handleClassifications(request: VNRequest, error: Error?) {
 67 |         if let error = error {
 68 |             print(error.localizedDescription)
 69 |             return
 70 |         }
 71 |         guard let results = request.results as? [VNClassificationObservation] else {
 72 |             print("No results")
 73 |             return
 74 |         }
 75 | 
 76 |         var resultString = "Это не кот!"
 77 |         results[0...3].forEach {
 78 |             let identifer = $0.identifier.lowercased()
 79 |             if identifer.range(of: " cat") != nil || identifer.range(of: "cat ") != nil || identifer == "cat" {
 80 |                 resultString = "Это кот!"
 81 |             }
 82 |         }
 83 |         DispatchQueue.main.async {
 84 |             self.resultLabel.text = resultString
 85 |         }
 86 |     }
 87 | }
 88 | 
 89 | // MARK: - AVCaptureVideoDataOutputSampleBufferDelegate
 90 | 
 91 | extension ViewController: AVCaptureVideoDataOutputSampleBufferDelegate {
 92 | 
 93 |     func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
 94 |         guard let pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else {
 95 |             return
 96 |         }
 97 | 
 98 |         var requestOptions: [VNImageOption: Any] = [:]
 99 |         if let cameraIntrinsicData = CMGetAttachment(sampleBuffer, kCMSampleBufferAttachmentKey_CameraIntrinsicMatrix, nil) {
100 |             requestOptions = [.cameraIntrinsics: cameraIntrinsicData]
101 |         }
102 | 
103 |         let imageRequestHandler = VNImageRequestHandler(cvPixelBuffer: pixelBuffer, orientation: 1, options: requestOptions)
104 |         do {
105 |             try imageRequestHandler.perform(visionRequests)
106 |         } catch {
107 |             print(error)
108 |         }
109 |     }
110 | }
111 | 


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/README.md:
--------------------------------------------------------------------------------
1 | # CoreMLCatsDemo
2 | 
3 | This app recognizes сats 😺 using Core ML and Vision.
4 | 
5 | ![Image alt](media/demo.gif)
6 | 


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/media/demo.gif:
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https://raw.githubusercontent.com/dmrozov/CoreMLCatsDemo/105c2759a859b36d25e874adeff6790a7f3cfce1/media/demo.gif


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