opencv_dart 1.0.6+1

OpenCV4 bindings for Dart language and Flutter, using dart:ffi. The most complete OpenCV bindings for Dart!

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!