3.0.1

[Common] Changed the minimum supported version to Unity2021.3.45f2.

[Common] Added BallTrackingBasedOnColorExample, HumanPoseStreamEstimationMediaPipeExample, FaceIdentificationEstimatorExample.

[Common] Added FaceIdentificationEstimator class for face detection, tracking, and recognition pipeline with BYTETracker integration for robust multi-object tracking.

[Common] Added MediaPipePoseStreamEstimator class for continuous pose tracking in video streams using MediaPipePersonDetector and MediaPipePoseEstimator with temporal smoothing.

[Common] Added MediaPipeHandPoseStreamEstimator class for continuous hand tracking in video streams using MediaPipePalmDetector and MediaPipeHandPoseEstimator with temporal smoothing.

[Common] Updated ARHelper-related classes.

3.0.0

[Common]Updated OpenCV to version 4.12.0.

[Common]Updated FpsMonitor to version 1.0.4.

[visionOS]Updated platform support for VisionOS on Unity 2022.3.18f1 and later (beta).

[Android]Updated native library libopencvforunity.so for Android to be compatible with 16KB page size.

[Common]Added SafeDrawFrameAxes method to OpenCVARUtils.

[Common]Added GetFilePathCoroutine, GetFilePathAsync, and GetFilePathTaskAsync methods to OpenCVEnv.

[Common]Added IsDebugMode and IsThrowException methods to OpenCVDebug.

[Common]Added TextureToMatAsync, RenderTextureToMatAsync, and MatToRenderTextureAsync methods to OpenCVMatUtils.

[Common]Added OpenCVForUnityProjectSizeReducerWindow in EditorWindow.

[Common]Added a feature to skip unnecessary downloads in OpenCVForUnityExampleAssetsDownloaderWindow.

[Common]Added ImshowDNNBlob method to DebugMat.

[Common]Added WeChatQRCodeDetectorImageExample and WeChatQRCodeDetectorExample.

[Common]Added HomographyToFindAKnownObjectExample.

[Common]Added ObjectDetectionDAMOYOLOExample.

[Common]Removed FaceDetectionResnetSSDExample due to incompatibility with the latest OpenCV.

[Common]Changed namespaces under org/unity from UnityUtils to UnityIntegration, split Utils class into function-specific classes, and marked old classes as deprecated.

[Common]Changed Operator in Mat class to deprecated.

2.6.6

[Common]Changed The FpsMonitor display system from IMGUI to uGUI.

[Common]Added support for the new Input System (UnityEngine.InputSystem).

2.6.5

[Common]Add ARHelper component class.

[Common]Updated ArUcoExample,

ArUcoImageExample, HandPoseEstimationMediaPipeExample and

PostEstimationMediaPipeExample using the ARHelper class.

[Common]Refactored

AsyncGPUReadback2MatHelper, Image2MatHelper, UnityVideoPlayer2MatHelper,

VideoCapture2MatHelper, WebCamTexture2MatAsyncGPUHelper and

WebCamTexture2MatHelper.

[Common]Added method to convert OpenCV basic classes to

Unity basic structs.

2.6.4

[Common]Added various data access methods to the Mat class, including ptr(), at(), AsSpan(), and AsSpanRowRange().

[Common]Updated get() and set() methods in the Mat class to support Span and generics, and updated MatUtils.copyFromMat() and MatUtils.copyToMat() to support Span.

[Common]Added structs and ValueTuples corresponding to the data formats of basic OpenCV classes, and created overloads for methods that use these basic classes as arguments, allowing the use of structs and ValueTuples instead. This update simplifies code, enables more efficient memory usage, and improves data access speed.

[Common]Added Utils.getFilePathAsyncTask() and Utils.getMultipleFilePathsAsyncTask() methods. It is an asynchronous Task return version of the existing Utils.getFilePathsAsync() method. It can be seamlessly integrated with other asynchronous code.

[Common]Added Utils.texture2DToMatRaw() and Utils.matToTexture2DRaw() methods.

[Common]Added methods for conversion between Mat and RenderTexture using ComputeShader (Utils.matToRenderTexture(), Utils.renderTextureToMat()).

[Common]Added the WebCamTexture2MatAsyncGPUHelper class.

[Common]Updated the DebugMatUtils class to support displaying Texture2D and RenderTexture.

[Common]Added a face blurring feature to FaceDetectorYNExample.

[iOS]Fixed an issue where AddToEmbeddedBinaries was processed redundantly with each incremental build.

2.6.3

[Common]Fixed CountFingersExample.

[Windows][UWP]Fixed native library build settings for ARM64 architecture.

2.6.2

[Common]Changed the minimum supported version to Unity2021.3.35f1.

[Common]Added AsyncGPUReadback2MatHelper. [Common]Updated

MultiSource2MatHelperExample.

[Common]Separated the examples using the Built-in

Render Pipeline and Scriptable Render Pipeline.

[Common]Fixed a memory leak in

Converters.cs.

2.6.1

[Common]Updated to OpenCV4.10.0.

[Common]Added MultiSource2MatHelperExample.

2.6.0

[iOS]Added separate plugin files for iOS for devices and simulators.

[WebGL]Added plugin files with only simd enabled.

2.5.9

[Common]Added PoseSkeletonVisualizer to HandPoseEstimationMediaPipeExample and PoseEstimationMediaPipeExample.

[Common]Changed to use unsafe code by default.

[Common]Optimized the amount of memory allocation, mainly in the Convertor class.

2.5.8

[Common]Updated to OpenCV4.9.0.

[Common]Added DebugMatUtilsExample and MultiObjectTrackingExample.

[Common]Updated VideoWriterExample, VideoWriterAsyncExample, TextRecognitionCRNNExample, TextRecognitionCRNNWebCamExample and TrackingExample.

[Common]Changed the minimum supported version to Unity2020.3.48f1.

[WebGL]Added support for "WebAssembly 2023".

[iOS]Changed “Target minimum iOS Version” to 11.0.

[Common]Removed TrackerGOTURN from TrackingExample and added TrackerVit.

2.5.7

[Common]Added FeatureMatchingExample.

[WebGL]Added a plugin file with threads and simd enabled for the WebGL platform. This update removes support for the WebGL platform in Unity 2021.1 and below. (Select MenuItem[Tools/OpenCV for Unity/Open Setup Tools/WebGL Settings])

2.5.6

[Common]Added PoseEstimationMediaPipeExample.

[Common]Updated VideoWriterExample, VideoWriterAsyncExample (support URP and HDRP) .

2.5.5

[Common]Updated to OpenCV4.8.0.

[Common]Added ImageCorrectionExample, YuNetFaceDetectionExample and FaceDetectionYuNetV2Example.

[Common]Updated HumanSegmentationExample, BarcodeDetectorExample.

[Windows]Added Support for ARM64.

[WebGL]Added Unity2023.2 or later support.

2.5.4

[Common]Added VideoWriterAsyncExample.

[Common]Updated SimpleBlobExample, HumanSegmentationExample and HandPoseEstimationExample.

2.5.3

[Common]Added HandPoseEstimationExample and FacialExpressionRecognitionExample.

2.5.2

[Common]Added YOLOv4ObjectDetectionExample, YOLOv7ObjectDetectionExample, YOLOXObjectDetectionExample and NanoDetPlusObjectDetectionExample.

[Common]Updated HandPoseEstimationExample, ArUcoExample, ArUcoWebCamExample and ArUcoCameraCalibrationExample.

2.5.1

[Common]Updated to OpenCV4.7.0.

[Common]Added ImageClassificationMobilenetExample and HandPoseEstimationExample.

[Common]Added TrackerNano to TrackingExample.

[Lumin]Removed Lumin platform support (for MagicLeapOne).

[Common]Add a button to SetupTools to automatically add scenes under the "Examples" folder to "Scenes In Build".

2.5.0

[Common]Added TransformECCExample, HumanSegmentationExample and ImageClassificationPPResnetExample.

[Common]Update TextOCRWebCamExample.

[Common]Changed the setup procedure to use the SetupToolsWindow.

[Common]Change the namespase under "OpenCVForUnity/Editor" folder from "OpenCVForUnity" to "OpenCVForUnity.Editor".

[Common]Added the ExampleAssetsDownloaderWindow that automatically downloads the necessary files to Examples.

[Common]Added "OpenCVForUnity" folder under "StreamingAssets" folder.

[Common]Added function to automatically move the StreamingAssets folder.

[WebGL]Added Unity2022.2 or later support.

2.4.9

[Common]Added LegacyTrackingExample and LightweightPoseEstimationWebCamExample.

2.4.8

[Common]Updated to OpenCV4.6.0.

[Common]Added KNNExample, PhysicalGreenScreenExample and LightweightPoseEstimationExample.

[Common]Update VideoCaptureToMatHelper, GreenScreenExample and QRCodeDetectorExample.

2.4.7

[Common]Updated to OpenCV4.5.5.

[Common]Added FaceDetectorYNWebCamTextureExample, FaceRecognizerSFExample and QRCodeEncoderExample.

2.4.6

[Common]Updated to OpenCV4.5.4.

[Android]Added Support for ChromeOS (x86 and x86_64 architectures).

2.4.5

[Common]Updated to OpenCV4.5.3.

[Common]Added BarcodeDetectorExample and BarcodeDetectorWebCamTextureExample.

2.4.4

[Common]Updated to OpenCV4.5.2.

[Common]Added

VideoCaptureCameraInputExample and BackgroundSubtractorComparisonExample.

[Common]Updated TrackingExample.

2.4.3

[Common]Added a downloader script to automatically set up the Dnn module example.

[WebGL]Added exclude_contrib version for build size reduction.

2.4.2

[Common]Added Assembly Definitions.

[Common]Fixed LibFaceDetectionV3Example.

2.4.1

[Common]Updated to OpenCV4.5.0.

[Common]Added DaSiamRPNTrackerExample.

2.4.0

[Common]Updated to OpenCV4.4.0.

[Common]Added TextOCRExample.

[Common]Updated YoloObjectDetectionExample ( Yolo v4 ) .

2.3.9

[Common]Updated to OpenCV4.3.0.

[Common]Added LibFaceDetectionV2Example, LibFaceDetectionV3Example, ColorizationExample and DocumentScannerExample.

[Common]Update ArUcoCameraCalibrationExample and WrapPerspectiveExample.

2.3.8

[Common]Updated to OpenCV4.2.0.

[UWP]Added ARM64 Architecture.

[WebGL]Added opencvforunity.bc with multi-threading enabled.

[Common]Added FastNeuralStyleTransferExample and LibFaceDetectionExample.

[Common]Added MatIndexer class and MatUtils class.

[Common]Update ComicFilterExample, VideoCaptureExample, OpenPoseExample and MatBasicProcessingExample.

2.3.7

[WebGL]Fixed build errors that occur when DevelopmentBuild is enabled on the WegGL platform.

[Common]Added optimization code using NativeArray class. ( require PlayerSettings.allowUnsafeCode flag, “OPENCV_USE_UNSAFE_CODE” ScriptingDefineSymbol and Unity2018.2 or later. )

[iOS]Fixed build errors that occur on the iOS platform with Unity2019.3 or later.

[Common]Updated to WebCamTextureToMatHelper.cs v1.1.1.