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Published 29 days ago • verified publisherrainyl.dev• Latest: 1.3.2 / Prerelease: 2.1.0-dev.0
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OpenCV4 bindings for Flutter, using dart:ffi. This plugin include `videoio` module, if you don't need it, please use `opencv_core` instead.

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1.3.0 #

  • breaking change: local build. Will download opencv sdk (~100M) from remote, set DARTCV_CACHE_DIR to cache it and avoid downloading in every build.
  • breaking change: many async class constructors and getters/setters were removed.
  • Breaking change: highgui, remove Window and Trackbar class, use functions like opencv c++ and python directly, e.g., cv.namedWindow("TestWindow"), more examples refer to: https://github.com/rainyl/opencv_dart/blob/split-dartcv/packages/dartcv/test/highgui_test.dart
  • macos: support 10.15 and above
  • android: API level 24 and above
  • ios: 12.0 and above
  • support custom linked ffmpeg 6.1 for windows, linux, android, macos
  • add DartCvMacOS dependency for macos
  • add DartCvIOS for ios
  • move all dart code to independent plugin dartcv4
  • bump dartcv to 1.0.1
  • add cv.Mat.fromMat

1.2.5 #

1.2.4 #

1.2.3 #

1.2.2 #

1.2.1 #

1.2.0 #

1.1.0+1 #

  • Fix: download wrong binaries on windows and linux, other platforms are not affected.

1.1.0 #

  • Breaking Change: Asynchronous support, APIs ended with Async support asynchronous call.
  • Breaking Change: Rng.uniform,gaussian,next returns a Stream now, #135
  • Breaking Change: delete xdata of Mat, Make Mat.fromList copy data internally to avoid extra data management, now it will copy the input data 2 times
  • Breaking Change: class MatType -> extension type const MatType(int value)
  • remove the dependency of equatable
  • New: ximgproc and xobjdetect modules.
  • (int, int).toSize(Arena arena) -> (int, int).asSize
  • (int, int).toPoint(Arena arena) -> (int, int).asPoint
  • (double, double, double, double).toScalar(Arena arena) -> (double, double, double, double).asScalar
  • New: Mat.fromRange
  • New: Point3i, VecPoint3i
  • remove BlockMeanHash.compareS, BlockMeanHash.computeS
  • remove FaceRecognizerSF.newRecognizer
  • More info at: #143

1.1.0-dev.1 #

  • New: EXPERIMENTAL Asynchronous support by @abdelaziz-mahdy and @rainyl, try it and open an issue if you have any problems.

1.0.10+1 #

  • Fix: setup commands error on linux

1.0.10 #

  • Fix: memory leak caused by cvstatus

1.0.9 #

  • Fix: free smart pointer

1.0.8 #

  • API change: FaceRecognizerSF.feature(Mat alignedImg) -> FaceRecognizerSF.feature(Mat alignedImg, {bool clone = false})
  • Deprecated: FaceRecognizerSF.newRecognizer FaceRecognizerSF.DIS_TYPR_FR_COSINE FaceRecognizerSF.DIS_TYPE_FR_NORM_L2

1.0.7 #

  • Add: FaceDetectorYN, FaceDetectorSF
  • Add: Mat.dataPtr to allow get raw data pointer
  • update lint rules and format

1.0.6+1 #

  • Fix: auto setup

1.0.6 #

  • Upgrade to OpenCV 4.10.0
  • VecUChar.toU8List() return a copy of data rather than a view
  • Better Auto setup, support universal ios framework (x86_64 and arm64)

1.0.5+1 #

  • Optimize Vectors
  • Fix: free cExt before exception in cv.imencode
  • Add data getter for Vec<int,uchar,chat,float,double>, cache type of Mat
  • Make auto setup build locally, set OPENCV_DART_DISABLE_AUTO_BUILD to disable auto setup and run setup commands as before, read more in README

1.0.5 #

  • Auto setup by @abdelaziz-mahdy, from v1.0.5, libs will be downloaded automatically during build, i.e., no need to run setup commands
  • Improve performance and optimize memory consumption
  • Add dispose() methods to allow manual free native resources
  • Better exception for cv.imencode
  • Add more API for objdetect module

1.0.4 #

  • Fix: Stitcher.composePanorama
  • Fix: pyrDown/Up border type, BORDER_CONSTANT -> BORDER_DEFAULT
  • New API: cv.Subdiv2D
  • New API: cv.LUT
  • improve performance of Mat.at() and Mat.set()
  • Add: Mat.aU8(), Mat.setU8(), etc.

1.0.3+2 #

  • fix: change the default border type of pyrDown/pyrUp to BORDER_DEFAULT, same as opencv

1.0.3+1 #

  • fix: Stitcher.composePanorama

1.0.3 #

  • New API: Mat::ptr -> Mat.ptrAt
    • ffi.Pointer<T> Mat.ptrAt<T extends ffi.NativeType>(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.UnsignedChar> Mat.ptrU8(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.Char> ptrI8(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.UnsignedShort> ptrU16(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.Short> ptrI16(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.Int> ptrI32(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.Float> ptrF32(int i0, [int? i1, int? i2])
    • ffi.Pointer<ffi.Double> ptrF64(int i0, [int? i1, int? i2])

1.0.2+2 #

  • Fix: update archive version to 3.5.1
  • Minor change: change cache, .cache -> .dart_tool/.cache
  • Minor change: setup script, use cache, add -f flag to force download

1.0.2+1 #

  • Fix: setup script will exit before files are really written to disk

1.0.2 #

  • API change: (Mat mean, Mat stdDev) meanStdDev(InputArray src, {OutputArray? mean, OutputArray? stdDev}) => (Scalar mean, Scalar stddev) meanStdDev(InputArray src, {InputArray? mask})
  • New: Mat.stdDev(), Mat.variance()
  • New: Scalar operator +, -, *, /, sqrt(), pow(int n)

1.0.1 #

  • API change: cv.Mat.fromScalar(Scalar s, MatType type, {int rows = 1, int cols = 1}) -> (int rows, int cols, MatType type, Scalar s)
  • API change: cv.VideoCapture.getProp(int propId) -> cv.VideoCapture.get(int propId), cv.VideoCapture.setProp(int propId, double value) -> cv.VideoCapture.get(int propId, double value)
  • New API: cv.VideoCapture.openIndex
  • New module: wechat_qrcode
  • Include ffmpeg.dll for windows

1.0.0+1 #

  • Replace Finalizer with ffi.NativeFinalizer
  • update Mat.toList(), Mat.toList3d<T, P>(), remove Mat.toList4D()
  • update Mat.data, now return a view of data pointer, same as v0.6.*
  • fix memory leak caused by Finalizer, now GC will also be triggered correctly in pure dart

1.0.0 #

  • Refactor nearly all APIs, this version is NOT compitable with previous versions!.
  • better exceptions, more concise API

0.6.7 #

  • add img_hash from opencv contrib, contributed by @mdeleau
  • since this version, old APIs will not get any updates from maintainer, please update to v1.0.0 if possible.

0.6.6 #

  • add cv.invertAffineTransform
  • remove net.forwardAsync
  • add ios version info

0.6.5 #

  • 🎉 IOS supported now, tested on simulator, try it!
  • fix ios dynamic library loading

0.6.4 #

  • this is a minor version and no functional code changes
  • speed up download and extract
  • change build system to conan
  • remove submodules to clean up structure

0.6.3 #

  • add support for macOS with Apple Silicon

0.6.2 #

  • add support for macos x64

0.6.1 #

  • add stitching module, for now, cv::Stitcher implemented

0.6.0 #

  • add dnn module
  • add more friendly error message, use cv.registerErrorCallback(); before potential error occurring.
  • change return shape of Mat.toList() from (cols, rows) to (rows, cols)

0.5.0 #

  • add asyncarray
  • add calib3d module

0.4.0 #

  • 🚀 add support for photo module

0.3.0 #

  • Please use 0.3.0 or later, tested for android, linux, and windows

0.2.0 #

  • 🎉 add android arm64-v8a, armeabi-v7a, x86, x86_64 prebuild binaries, e.g., dart run opencv_dart:setup -p android -a arm64-v8a to download prebuilt binaries for android arm64-v8a

0.1.0 #

  • Finished: test for aruco, features2d, video module
  • 🎉 this package is STABLE now! 🚀 check API reference for more details
  • more examples and docs are on the way

0.0.4 #

  • adjust prebuilt binaries distribution, use dart run opencv_dart:setup to download prebuilt binaries
  • Finished: test for imgproc module
  • Finished: test for Linux

0.0.3 #

  • more test for imgproc module

0.0.3-dev.0 #

  • Finished: test for core module
  • Minor changes for Mat

0.0.2 #

  • Implemented: imgproc, imgcodecs, core, video, need to be tested!
  • add example

0.0.1 #

  • Initial Release
  • Implemented: imgproc, imgcodecs, core, video, need to be tested!

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verified publisherrainyl.dev

Metadata

OpenCV4 bindings for Flutter, using dart:ffi. This plugin include `videoio` module, if you don't need it, please use `opencv_core` instead.

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Topics

#opencv #image #ffi #flutter

License

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Dependencies

dartcv4, flutter

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