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0.39.0

  • bugfix
    • Fixed MinGW link typo in README.md.
    • Fixed function name typo (#1236).
  • core
    • Added FaceDetectorYN example.
    • Query I/O API backends registry (#1237).
    • Face detector YN face recognizer SF (#1232).
  • cuda
    • Added createLookUpTable and split functions.
    • Added missing CUDA imgproc standalone functions.
    • Added XXXWithStream standalone functions.
  • docker
    • Added Dockerfile for container that can perform static builds of your own GoCV project (HighGUI not supported by static builds).
    • Added Dockerfile example showing how to build using static linking.
    • Added static build examples.
    • Updated version for gocv-static-builder image.
  • build
    • Updated workflow for Docker builds to latest versions.
    • Used most recent NVIDIA CUDA base image.
    • Used static FFmpeg build for static OpenCV build.
    • Downgraded static build to Go 1.22 to avoid Go issue #68976.
    • Modified Dockerfile used for static builds to build own versions for static linking.
    • Corrected build options for OpenCV on arm64 for static builds.
    • Separated build tags and linker flags for arm64 and amd64 targets.
    • Modified LDFLAGS for correct static compilation.
    • Removed extra file to clear space for static build/standard dev build images.
    • Added options for Linux arm64 and separate Darwin builds.
  • cgo
    • Changed tags for static OpenCV to opencvstatic.
    • Added options for Linux arm64 and separate Darwin builds.
    • Removed unneeded lib from link for Linux/arm64.
    • Modified LDFLAGS for correct static compilation.
  • docs
    • Added missing videoio functions to ROADMAP.
    • Updated ROADMAP with missing objdetect functions for DNN faces, and moved aruco under objdetect module.
    • Simplified the YOLO example.

0.38.0

  • bugfix
    • aruco: correct test from latest OpenCV update
    • exclude freetype.cpp file from being included in windows build
    • feat(demosaicing): release mat when conversion to bayer encounters invalid pattern
    • imgproc HomographyMethod const values typo fixed
  • build
    • add macOS build for GH actions CI
    • adjust make and docker build files to build freetype support
    • correct ONNX DNN tests on Linux/macOS
    • move download for GOTURN models into testdata subdirectory
    • remove Caffe tests
    • run DNN tests on Windows
    • make: add task to run all cuda tests
    • make: build non-free modules when building opencv with cuda support
    • skip tests on macOS that are not passing due to OpenCV different results on macOS. See https://forum.opencv.org/t/match-template-different-results-on-mac-m1/10026 and other similar issues.
    • update all generated docker images to Go 1.23.1
  • examples
    • add asciicam video to ascii in your terminal
    • add object detection example using YOLOv8
  • core
    • add Closed() function to Mat
    • add OpenCV types for half-float values
    • add TransposeND() function
    • persistance implement Filestorage roadmap (#1208)
    • RotatedRect type constructors
  • dnn
    • add BlobFromImageWithParams() and BlobFromImagesWithParams() functions
    • add BlobRectToImageRect() and BlobRectsToImageRects() functions
    • allow ReadNet() function to only pass model file, and remove tests for Caffe
  • features2d
    • SIFT with params (#1186)
  • highgui
    • added window pollkey function (#1198)
    • added window WaitKeyEx support (#1195)
    • Window set mouse callback (#1220)
  • imgcodecs
    • added immultiread support
  • imgproc
    • feat(imgproc): demosaicing wrapper
    • add HomographyMethodRHO HomographyMethod added
  • objdetect
    • change QRCodeDetector signature to avoid pointer to slice
  • video
    • added TrackerGOTURN (see roadmap)
  • videoio
    • Capture from device and file with HW acceleration
  • cuda
    • add Closed() function to Mat/GpuMat
    • add DeviceSupports function
    • add implementations for AddWeighted and CopyMakeBorder functions
    • add Merge and Transpose functions
    • add support for convertFp16 function
    • add tests for demosaicing
    • feat(imgproc): demosaicing wrapper
    • correct go fmt error
  • contrib/face
    • added face recognizer interface (#1211)
    • BasicFaceRecognizer + EigenFaceRecognizer + FisherFaceRecognizer (#1213)
    • extra setters and getters for LBPHFaceRecognizer (#1194)
  • contrib/freetype
    • imported freetype code by lz1998 from PR 873

0.37.0

  • all
    • Add support for OpenCV 4.10.0

0.36.1

  • bugfix
    • Correct error in CUDA function signature
  • test
    • correct CUDA tests
  • docker
    • add test image for CUDA 12

0.36.0

  • all
    • Add support for OpenCV 4.9.0
    • update Go to version 1.22
    • update minimum go version to 1.21
  • bugfix
    • aruco: correct test from latest OpenCV update
  • build
    • add GH action for Windows
    • remove appveyor
    • adjusted Makefile to build for debian bookworm
  • core
    • Add additional signature for MinMaxLoc.
    • add color conversion alias
    • add Mahalanobis(), Inv(), Row(), amd Col() functions
    • add MulTransposed() function
    • add PCABackProject() and PCAProject() functions
    • add PSNR() function
    • add SVBackSubst() and SVDecomp() functions
  • calib3d
    • add FisheyeCalibrate, FisheyeDistortPoints, and CheckChessboard functions
    • Add func comments and update readme
    • add Rodrigues function
    • add SolvePnP function
    • Add more smoke tests
    • Initial commit of more stereo bindings
  • feature2d
    • Add interface for Feature2D algorithms
    • Asserting some algorithms conform to Feature2D
    • Prepend "Feature2D" prefix to component interfaces of Feature2D
  • imgproc
    • add CreateHanningWindow()
    • add EMD()
    • Add float version of BoxPoints and MinAreaRect
    • Add new binding for cv::Erode.
  • videoio
    • add Retrieve function
  • contrib/xfeatures2d
    • Add BriefDescriptorExtractor to xfeatures2d (#1114)
    • add NewSURFWithParams func
    • Add separate "Compute" bindings for detection algorithms (#1117)
  • cuda/core
    • ADD Cuda MultiplyWithStream (#1142)

0.35.0

  • all
    • Add support for OpenCV 4.8.1
    • correct Go formatting
  • features2d
    • Add Match method for BFMatcher
  • build
    • remove extra files from GH actions runner so GPU images builds have enough temp file space to run correctly
  • make
    • for build_raspi added conditional cmake build for 64 and 32bit platforms
    • remove ENABLE_VFPV3=ON and add WITH_TBB=ON from 64bit build.
    • added sudo_pre_install_clean to raspberry pi and jetson installs
    • change sudo_pre_install_clean to support cleanup on 64bit architechtures (arm and x86)

0.34.0

  • all
    • Add support for OpenCV 4.8.0
    • Add support for Go 1.21
  • build
    • update all builds to use OpenCV 4.8.0
  • core
    • Adds support for PCACompute
  • docker
    • add dockerfile for OpenCV static build
  • make
    • Leave one processor free instead of using all of them when building

0.33.0

  • bugfix
    • Remove opencv2/aruco.hpp include
  • all
    • build performance tests with all OpenCV builds
  • build
    • build and push Ubuntu 22.04 base image with OpenCV 4.7.0
    • docker images with opencv
    • docker production images with opencv 4.7.0
    • Docker push to GHCR
  • core
    • Add ReduceArgMax and ReduceArgMin
  • dnn
    • improved NMSBoxes code
  • docker
    • add dockerfile for Ubuntu 22.04 OpenCV base image
    • updates to migrate to GHCR
  • examples
    • Deallocate Mats in feature-matching example.
    • Fix G108 (CWE-200) and G114 (CWE-676)
    • Fix G304 (CWE-22) and G307 (CWE-703)
    • Fix G304 (CWE-22) and G307 (CWE-703)
    • Missed #nosec tag
  • make
    • Ubuntu Jammy (22) opencv build support.

0.32.0

  • all
    • update to OpenCV 4.7.0
  • core
    • Add the number of thread setter and getter
  • calib3d
    • add EstimateAffinePartial2DWithParams()
  • imgcodecs
    • Add IMDecodeIntoMat to reduce heap allocations (#1035)
  • imgproc
    • add matchShapes function support
  • objdetect
    • move aruco from contrib and also refactor/update to match current OpenCV API
  • photo
    • add inpaint function
  • video
    • cv::KalmanFilter bindings.
  • cuda
    • add support for cuda::TemplateMatching
  • docker
    • update all dockerfiles for OpenCV 4.7.0/GoCV 0.32.0
    • multiplatform for both amd64 and arm64
    • install libjpeg-turbo into docker image
    • add Ubunutu 18.04 and 20.04 prebuilt OpenCV images
    • add dockerfile for older version of CUDA for those who cannot upgrade
  • ci
    • remove circleci
    • correct actions that trigger build
  • make
    • change download path for OpenCV release tag
  • windows
    • Update win_build_opencv.cmd
  • docs
    • correct docs on building docker
    • update ROADMAP
    • typo in comment
    • update comments style with gofmt
  • openvino
    • Add openvino Dockerfile
    • Fix OpenvinoVersion dangling pointer
    • Update env.sh and README.md for 2022.1

0.31.0

  • all
    • update to OpenCV 4.6.0
  • build
    • Switch to Github Actions for Linux CI build
    • Use go -tags static when verifying static build
  • core
    • Add Mat.ElemSize (#964)
    • avoid index out of range panic in NewPointsVectorFromPoints
  • video
    • add findTransformECC function
  • contrib/ximgproc
    • add PeiLinNormalization() function
    • add anisotropicDiffusion() function
    • implement edgePreservingFilter()
    • implement niBlackThreshold and thinning filters

0.30.0

  • all
    • update to OpenCV 4.5.5
  • build
    • add install_nonfree make task to build all opencv_contrib modules
    • correct download location for onnx test file
    • Update Makefile for missing version changes
  • core
    • correct how memory is being allocated for Eye(), Zeros(), and Ones() to address issue #930
  • calib3d
    • Adding support for estimateAffine2DWithParams (#924)
  • imgproc
    • Add DrawContoursWithParams function
  • photo
    • Add bindings for fastNlMeansDenoising and fastNlMeansDenoisingColored
    • add detailEnhance function
    • add EdgePreservingFilter function
    • add PencilSketch function
    • add stylization function
  • docs
    • add godoc comments for FastNlMeansDenoising functions
    • update README with info on latest mingw-w64 t use for Windows builds
    • dnn pose detect examples correct the order of the argument variable name
  • examples
    • Fixed memory leaks in the motion detection example
  • openvino
    • Update env.sh and README.md
  • windows
    • use mingw-w64 8.1.0 for protobuf compile
  • contrib
    • add cv::wechat_qrcode::WeChatQRCode (#949)
    • Update cgo_static.go

0.29.0

  • all
    • update to OpenCV 4.5.4
  • build
    • add static build ability on windows
    • use tbb for all builds for CPU accelerated operations
  • cuda
    • implement a bunch of per-element operations
    • add get/set/reset device functions
    • add NewGpuMatWithSize() to preallocate device memory
    • Reshape() returns a new GpuMat with the changed data
    • correct use of Stream by adding WaitForCompletion() and passing pre-allocated GpuMats
  • docs
    • update ROADMAP from recent contributions
  • videoio
    • Fix open video capture with api test (#895)
  • calib3d
    • added EstimateAffine2D
    • findChessboardCornersSB
  • aruco
    • added many functions as part of initial implementation

0.28.0

  • all
    • update to OpenCV 4.5.3
    • make task and build tag for static build of OpenCV/GoCV on Linux
    • add Makefile tasks for OpenCV install on Nvidia Jetson
    • add gotest for more colorful test output running tests from containers
  • build
    • correcting output format for code coverage report
    • enforce rule that all Go code is correctly formatted
    • remove codecov
  • core
    • add NewPointVectorFromMat() and NewPoint2fVectorFromMat() functions
    • Fix possible MatProfile race by ordering remove before free.
  • cuda
    • add core functions for GpuMat like Cols(), Rows(), and Type()
    • initial implementation for the Flip function
  • docs
    • update ROADMAP from recent contributions
  • examples
    • correct list of examples and fix comment
  • features2d
    • Add NewORBWithParams
  • tracking
    • change MOSSE to KCF
  • highgui
    • Add function CreateTrackbarWithValue to Window type.
  • imgcodec
    • optimize IMEncode avoiding multiple data copies.
  • imgproc
    • Add CircleWithParams function
    • Add DilateWithParams() function (#827)
    • Add EllipseWithParams function
    • Add FillPolyWithParams function
    • Add PointPolygonTest function
    • Add RectangleWithParams function
  • photo
    • add MergeMertens, AlignMTB and Denoising function (#848)
  • xphoto
    • Add Xphoto contrib (#844)

0.27.0

  • all
    • update to OpenCV 4.5.2
  • core
    • add Append() to PointsVector/PointVector
    • add cv::RNG
    • add implementation for Point2fVector
    • add rand functions
    • add test coverage for PointsVector
    • create new PointsVector/PointVector wrappers to avoid repetitive memory copying for seeming innocent operations involving slices of image.Point
    • test coverage for Point2f
    • use PointVector for everything that we can to speed up pipeline when passing around Point vectors
    • use enum instead of int for Invert Method
  • cuda
    • adding HoughLinesDetector and HoughSegmentDetector
    • adding tests for the CannyEdgeDetector
    • some refactoring of the API
    • adding dockerfiles for OpenCV 4.5.2 with CUDA 11.2
    • add GaussianFilter
    • correct signature and test for Threshold
    • implement SobelFilter
    • move arithm module functions into correct location
    • rename files to get rid of so many cudas
    • add abs function implementation
  • dnn
    • increase test coverage
  • docker
    • make all Dockerfiles names/tags more consistent
  • docs
    • add CUDA functions that need implementation to ROADMAP
    • remove invalid sections and add some missing functions from ROADMAP
  • imgproc
    • Add FindContoursWithParams function
    • Add ToImageYUV and ToImageYUVWithParams
  • make
    • add make task to show changelog for next release
  • wechat_qrcode
    • disable module in Windows due to linker error

0.26.0

  • all
    • update to OpenCV 4.5.1
  • core
    • add Matrix initializers: eye, ones, zeros (#758)
    • add multidimensional mat creation
    • add ndim mat constructor
    • added accumulators
    • added norm call with two mats (#600)
    • keep a reference to a []byte that backs a Mat. (#755)
    • remove guard for DataPtrUint8 since any Mat can be treated an Uint8
    • add Mat IsContinuous() function, and ensure that any Mat data pointers used to create Go slices only apply to continuous Mats
    • fix buffer size for Go strings for 32-bit operating systems
  • build
    • bring back codecov.io
  • calib3d
    • correctly close mat after test
  • dnn
    • add ReadNetFromONNX and ReadNetFromONNXBytes (#760)
    • increase test coverage
  • docker
    • dockerfiles for opencv gpu builds
  • docs
    • corrected links to CUDA and OpenVINO
    • list all unimplemented functions in photo module
    • replace GoDocs with pkg docs
    • update ROADMAP from recent contributions
  • imgproc
    • add test coverage for GetTextSizeWithBaseline()
    • close all Mats even those based on memory slices
    • close Mat to avoid memory leak in ToImage()
    • refactoring of ToImage and ImageToMatXX functions
  • openvino
    • fix dldt repo in makefile for openvino
  • os
    • adding gcc-c++ package to rpm deps
  • photo
    • add SeamlessClone function
  • profile
    • add created mats in Split and ForwardLayers to profile (#780)

0.25.0

  • all
    • update to opencv release 4.5.0
  • build
    • add file dependencies needed for DNN tests
    • add verbose output for tests on CircleCI
    • also run unit tests on non-free algorithms. YMMV.
    • fix build with cuda
    • remove Travis and switch to CircleCI using Docker based builds
    • update CI builds to Go 1.15
  • core
    • add mixChannels() method to Mat (#746)
    • Add toGoStrings helper
    • support ConvertToWithParams method
  • dnn
    • Add NMSBoxes function (#736)
    • Added ability to load Torch file. Tested features for extracting 128d vectors
    • fix using wrong type for unconnectedlayertype
    • use default ddepth for conversions to blob from image as recommended by @berak
  • docker
    • use separate dockerfile for opencv to avoid massive rebuild
  • docs
    • add recent contributions to ROADMAP and also add cuda functions still in need of implementation
    • display CircleCI badge in README
    • minor improvements to CUDA docs in READMEs
  • features2d
    • add FlannBasedMatcher
    • add drawmatches (#720)
    • fix memory leak in SIFT
  • highgui
    • refactored ROI methods
  • imgproc
    • Add option to return baseline with GetTextSizeWithBaseline
  • objdetect
    • Add QRCode DetectAndDecodeMulti
  • videoio
    • Add video capture properties and set preferred api backend (#739)
    • fix needed as discussed in golang/go issue #32479

0.24.0

  • all
    • update Makefile and READMEChange constants and corresponding function signatures to have the correct types (#689)
    • replace master branch terminology with release
    • update to OpenCV 4.4.0
  • calib3d
    • add FindHomography()
    • add function EstimateAffinePartial2D()
    • add GetAffineTransform() and GetAffineTransform2f()
    • add UndistortPoints(), FisheyeUndistortPoints() and EstimateNewCameraMatrixForUndistortRectify()
  • core
    • add MultiplyWithParams
  • docs
    • add recent contributions to ROADMAP
    • create CODE_OF_CONDUCT.md
    • update copyright year
  • features2d
    • close returned Mat from SIFT algorithm
    • fix issue 707 with DrawKeyPoints
    • SIFT patent now expired so is part of main OpenCV modules
  • imgproc
    • change struct to remove GNU old-style field designator extension warning

0.23.0

  • build
    • update Makefile and README
    • update to use go1.14
  • calib3d
    • add draw chessboard
  • core
    • fix memory leak in Mat.Size() and Mat.Split() (#580)
  • cuda
    • add build support
    • add cuda backend/target
    • add support for:
      • cv::cuda::CannyEdgeDetector
      • cv::cuda::CascadeClassifier Class
      • cv::cuda::HOG Class
    • remove breaking case statement
  • dnn
    • avoid parallel test runs
    • remove attempt at providing grayscale image blog conversion that uses mean adjustment
  • docker
    • docker file last command change (#505)
  • docs
    • add recent contributions to ROADMAP
  • imgproc
    • add ErodeWithParams function
    • add getGaussianKernel function
    • add Go Point2f type and update GetPerspectiveTransform() (#589)
    • add PhaseCorrelate binding (#626)
    • added Polylines feature
    • do not free contours data until after we have drawn the needed contours
    • Threshold() should return a value (#620)
  • make
    • added raspberry pi zero support to the makefile
  • opencv
    • update to OpenCV 4.3.0
  • openvino
    • add build support
  • windows
    • add cmake flag for allocator stats counter type to avoid opencv issue #16398

0.22.0

  • bgsegm
    • Add BackgroundSubtractorCNT
  • calib3d
    • Added undistort function (#520)
  • core
    • add functions (singular value decomposition, multiply between matrices, transpose matrix) (#559)
    • Add new funcs (#578)
    • add setIdentity() method to Mat
    • add String method (#552)
    • MatType: add missing constants
  • dnn
    • Adding GetLayerNames()
    • respect the bit depth of the input image to set the expected output when converting an image to a blob
  • doc
    • change opencv version 3.x to 4.x
  • docker
    • use Go1.13.5 for image
  • imgcodecs
    • Fix webp image decode error (#523) imgcodecs: optimize copy of data used for IMDecode method
  • imgproc
    • Add GetRectSubPix
    • Added ClipLine
    • Added InvertAffineTransform
    • Added LinearPolar function (#524)
    • correct ksize param used for MedianBlur unit test
    • Feature/put text with line type (#527)
    • FitEllipse
    • In FillPoly and DrawContours functions, remove func() wrap to avoid memory freed before calling opencv functions. (#543)
  • objdetect
    • Add support QR codes
  • opencv
    • update to OpenCV 4.2.0 release
  • openvino
    • Add openvino async
  • test
    • Tolerate imprecise result in SolvePoly
    • Tolerate imprecision in TestHoughLines

0.21.0

  • build
    • added go clean --cache to clean target, see issue 458
  • core
    • Add KMeans function
    • added MeanWithMask function for Mats (#487)
    • Fix possible resource leak
  • cuda
    • added cudaoptflow
    • added NewGpuMatFromMat which creates a GpuMat from a Mat
    • Support for CUDA Image Warping (#494)
  • dnn
    • add BlobFromImages (#467)
    • add ImagesFromBlob (#468)
  • docs
    • update ROADMAP with all recent contributions. Thank you!
  • examples
    • face detection from image url by using IMDecode (#499)
    • better format
  • imgproc
    • Add calcBackProject
    • Add CompareHist
    • Add DistanceTransform and Watershed
    • Add GrabCut
    • Add Integral
    • Add MorphologyExWithParams
  • opencv
    • update to version 4.1.2
  • openvino
    • updates needed for 2019 R3
  • videoio
    • Added ToCodec to convert FOURCC string to numeric representation (#485)

0.20.0

  • build
    • Use Go 1.12.x for build
    • Update to OpenCV 4.1.0
  • cuda
    • Initial cuda implementation
  • docs
    • Fix the command to install xquartz via brew/cask
  • features2d
    • Add support for SimpleBlobDetectorParams (#434)
    • Added FastFeatureDetectorWithParams
  • imgproc
    • Added function call to cv::morphologyDefaultBorderValue
  • test
    • Increase test coverage for FP16BlobFromImage()
  • video
    • Added calcOpticalFlowPyrLKWithParams
    • Addition of MOG2/KNN constructor with options

0.19.0

  • build
    • Adds Dockerfile. Updates Makefile and README.
    • make maintainer tag same as dockerhub organization name
    • make sure to run tests for non-free contrib algorithms
    • update Appveyor build to use Go 1.12
  • calib3d
    • add func InitUndistortRectifyMap (#405)
  • cmd
    • correct formatting of code in example
  • core
    • Added Bitwise Operations With Masks
    • update to OpenCV4.0.1
  • dnn
    • add new backend and target types for NVIDIA and FPGA
    • Added blobFromImages in ROADMAP.md (#403)
    • Implement dnn methods for loading in-memory models.
  • docker
    • update Dockerfile to use OpenCV 4.0.1
  • docs
    • update ROADMAP from recent contributions
  • examples
    • Fixing filename in caffe-classifier example
  • imgproc
    • Add 'MinEnclosingCircle' function
    • added BoxPoints function and BorderIsolated const
    • Added Connected Components
    • Added the HoughLinesPointSet function.
    • Implement CLAHE to imgproc
  • openvino
    • remove lib no longer included during non-FPGA installations
  • test
    • Add len(kp) == 232 to TestMSER, seems this is necessary for MacOS for some reason.

0.18.0

  • build
    • add OPENCV_GENERATE_PKGCONFIG flag to generate pkg-config file
    • Add required curl package to the RPM and DEBS
    • correct name for zip directory used for code download
    • Removing linking against face contrib module
    • update CI to use 4.0.0 release
    • update Makefile and Windows build command file to OpenCV 4.0.0
    • use opencv4 file for pkg-config
  • core
    • add ScaleAdd() method to Mat
  • docs
    • replace OpenCV 3.4.3 references with OpenCV 4
    • update macOS installation info to refer to new OpenCV 4.0 brew
    • Updated function documentation with information about errors.
  • examples
    • Improve accuracy in hand gesture sample
  • features2d
    • update drawKeypoints() to use new stricter enum
  • openvino
    • changes to accommodate release 2018R4
  • profile
    • add build tag matprofile to allow for conditional inclusion of custom profile
    • Add Mat profile wrapper in other areas of the library.
    • Add MatProfile.
    • Add MatProfileTest.
    • move MatProfile tests into separate test file so they only run when custom profiler active
  • test
    • Close images in tests.
    • More Closes in tests.
    • test that we are using 4.0.x version now
  • videoio
    • Return the right type and error when opening VideoCapture fails

0.17.0

  • build
    • Update Makefile
    • update version of OpenCV used to 3.4.3
    • use link to OpenCV 3.4.3 for Windows builds
  • core
    • add mulSpectrums wrapper
    • add PolarToCart() method to Mat
    • add Reduce() method to Mat
    • add Repeat() method to Mat
    • add Solve() method to Mat
    • add SolveCubic() method to Mat
    • add SolvePoly() method to Mat
    • add Sort() method to Mat
    • add SortIdx() method to Mat
    • add Trace() method to Mat
    • Added new MatType
    • Added Phase function
  • dnn
    • update test to match OpenCV 3.4.3 behavior
  • docs
    • Add example of how to run individual test
    • adding instructions for installing pkgconfig for macOS
    • fixed GOPATH bug.
    • update ROADMAP from recent contributions
  • examples
    • add condition to handle no circle found in circle detection example
  • imgcodecs
    • Added IMEncodeWithParams function
  • imgproc
    • Added Filter2D function
    • Added fitLine function
    • Added logPolar function
    • Added Remap function
    • Added SepFilter2D function
    • Added Sobel function
    • Added SpatialGradient function
  • xfeatures2d
    • do not run SIFT test unless OpenCV was built using OPENCV_ENABLE_NONFREE
    • do not run SURF test unless OpenCV was built using OPENCV_ENABLE_NONFREE

0.16.0

  • build
    • add make task for Raspbian install with ARM hardware optimizations
    • use all available cores to compile OpenCV on Windows as discussed in issue #275
    • download performance improvements for OpenCV installs on Windows
    • correct various errors and issues with OpenCV installs on Fedora and CentOS
  • core
    • correct spelling error in constant to fix issue #269
    • implemented & added test for Mat.SetTo
    • improve Multiply() GoDoc and test showing Scalar() multiplication
    • mutator functions for Mat add, subtract, multiply, and divide for uint8 and float32 values.
  • dnn
    • add FP16BlobFromImage() function to convert an image Mat to a half-float aka FP16 slice of bytes
  • docs
    • fix a varible error in example code in README

0.15.0

  • build
    • add max to make -j
    • improve path for Windows to use currently configured GOPATH
  • core
    • Add Mat.DataPtr methods for direct access to OpenCV data
    • Avoid extra copy in Mat.ToBytes + code review feedback
  • dnn
    • add test coverage for ParseNetBackend and ParseNetTarget
    • complete test coverage
  • docs
    • minor cleanup of language for install
    • use chdir instead of cd in Windows instructions
  • examples
    • add 'hello, video' example to repo
    • add HoughLinesP example
    • correct message on device close to match actual event
    • small change in display message for when file is input source
    • use DrawContours in motion detect example
  • imgproc
    • Add MinAreaRect() function
  • test
    • filling test coverage gaps
  • videoio
    • add test coverage for OpenVideoCapture

0.14.0

  • build
    • Add -lopencv_calib3d341 to the linker
    • auto-confirm on package installs from make deps command
    • display PowerShell download status for OpenCV files
    • obtain caffe test config file from new location in Travis build
    • remove VS only dependencies from OpenCV build, copy caffe test config file from new location
    • return back to GoCV directory after OpenCV install
    • update for release of OpenCV v3.4.2
    • use PowerShell for scripted OpenCV install for Windows
    • win32 version number has not changed yet
  • calib3d
    • Add Calibrate for Fisheye model(WIP)
  • core
    • add GetTickCount function
    • add GetTickFrequency function
    • add Size() and FromPtr() methods to Mat
    • add Total method to Mat
    • Added RotateFlag type
    • correct CopyTo to use pointer to Mat as destination
    • functions converting Image to Mat
    • rename implementation to avoid conflicts with Windows
    • stricter use of reflect.SliceHeader
  • dnn
    • add backend/device options to caffe and tensorflow DNN examples
    • add Close to Layer
    • add first version of dnn-pose-detection example
    • add further comments to object detection/tracking DNN example
    • add GetPerfProfile function to Net
    • add initial Layer implementation alongside enhancements to Net
    • add InputNameToIndex to Layer
    • add new functions allowing DNN backends such as OpenVINO
    • additional refactoring and comments in dnn-pose-detection example
    • cleanup DNN face detection example
    • correct const for device targets to be called Target
    • correct test that expected init slice with blank entries
    • do not init slice with blank entries, since added via append
    • further cleanup of DNN face detection example
    • make dnn-pose-detection example use Go channels for async operation
    • refactoring and additional comments for object detection/tracking DNN example
    • refine comment in header for style transfer example
    • working style transfer example
    • added ForwardLayers() to accomodate models with multiple output layers
  • docs
    • add scripted Windows install info to README
    • Added a sample gocv workflow contributing guideline
    • mention docker image in README.
    • mention work in progress on Android
    • simplify and add missing step in Linux installation in README
    • update contributing instructions to match latest version
    • update ROADMAP from recent calib3d module contribution
    • update ROADMAP from recent imgproc histogram contribution
  • examples
    • cleanup header for caffe dnn classifier
    • show how to use either Caffe or Tensorflow for DNN object detection
    • further improve dnn samples
    • rearrange and add comments to dnn style transfer example
    • remove old copy of pose detector
    • remove unused example
  • features2d
    • free memory allocation bug for C.KeyPoints as pointed out by @tzununbekov
    • Adding opencv::drawKeypoints() support
  • imgproc
    • add equalizeHist function
    • Added opencv::calcHist implementation
  • openvino
    • add needed environment config to execute examples
    • further details in README explaining how to use
    • remove opencv contrib references as they are not included in OpenVINO
  • videoio
    • Add OpenVideoCapture
    • Use gocv.VideoCaptureFile if string is specified for device.

0.13.0

  • build
    • Add cgo directives to contrib
    • contrib subpackage also needs cpp 11 or greater for a warning free build on Linux
    • Deprecate env scripts and update README
    • Don't set --std=c++1z on non-macOS
    • Remove CGO vars from CI and correct Windows cgo directives
    • Support pkg-config via cgo directives
    • we actually do need cpp 11 or greater for a warning free build on Linux
  • docs
    • add a Github issue template to project
    • provide specific examples of using custom environment
  • imgproc
    • add HoughLinesPWithParams() function
  • openvino
    • add build tag specific to openvino
    • add roadmap info
    • add smoke test for ie

0.12.0

  • build
    • convert to CRLF
    • Enable verbosity for travisCI
    • Further improvements to Makefile
  • core
    • Add Rotate, VConcat
    • Adding InScalarRange and NewMatFromScalarWithSize functions
    • Changed NewMatFromScalarWithSize to NewMatWithSizeFromScalar
    • implement CheckRange(), Determinant(), EigenNonSymmetric(), Min(), and MinMaxIdx() functions
    • implement PerspectiveTransform() and Sqrt() functions
    • implement Transform() and Transpose() functions
    • Make toByteArray safe for empty byte slices
    • Renamed InScalarRange to InRangeWithScalar
  • docs
    • nicer error if we can't read haarcascade_frontalface_default
    • correct some ROADMAP links
    • Fix example command.
    • Fix executable name in help text.
    • update ROADMAP from recent contributions
  • imgproc
    • add BoxFilter and SqBoxFilter functions
    • Fix the hack to convert C arrays to Go slices.
  • videoio
    • Add isColor to VideoWriterFile
    • Check numerical parameters for gocv.VideoWriterFile
    • CodecString()
  • features2d
    • add BFMatcher
  • img_hash
    • Add contrib/img_hash module
    • add GoDocs for new img_hash module
    • Add img-similarity as an example for img_hash
  • openvino
    • adds support for Intel OpenVINO toolkit PVL
    • starting experimental work on OpenVINO IE
    • update README files for Intel OpenVINO toolkit support
    • WIP on IE can load an IR network

0.11.0

  • build
    • Add astyle config
    • Astyle cpp/h files
    • remove duplication in Makefile for astyle
  • core
    • Add GetVecfAt() function to Mat
    • Add GetVeciAt() function to Mat
    • Add Mat.ToImage()
    • add MeanStdDev() method to Mat
    • add more functions
    • Compare Mat Type directly
    • further cleanup for GoDocs and enforce type for convariance operations
    • Make borderType in CopyMakeBorder be type BorderType
    • Mat Type() should return MatType
    • remove unused convenience functions
    • use Mat* to indicate when a Mat is mutable aka an output parameter
  • dnn
    • add a ssd sample and a GetBlobChannel helper
    • added another helper func and a pose detection demo
  • docs
    • add some additional detail about adding OpenCV functions to GoCV
    • updates to contribution guidelines
    • fill out complete list of needed imgproc functions for sections that have work started
    • indicate that missing imgproc functions need implementation
    • mention the WithParams patterns to be used for functions with default params
    • update README for the Mat* based API changes
    • update ROADMAP for recent changes especially awesome recent core contributions from @berak
  • examples
    • Fix tf-classifier example
    • move new DNN advanced examples into separate folders
    • Update doc for the face contrib package
    • Update links in caffe-classifier demo
    • WIP on hand gestures tracking example
  • highgui
    • fix constant in NewWindow
  • imgproc
    • Add Ellipse() and FillPoly() functions
    • Add HoughCirclesWithParams() func
    • correct output Mat to for ConvexHull()
    • rename param being used for Mat image to be modified
  • tracking
    • add support for TrackerMIL, TrackerBoosting, TrackerMedianFlow, TrackerTLD, TrackerKCF, TrackerMOSSE, TrackerCSRT trackers
    • removed mutitracker, added Csrt, rebased
    • update GoDocs and minor renaming based on gometalint output

0.10.0

  • build
    • install unzip before build
    • overwrite when unzipping file to install Tensorflow test model
    • use -DCPU_DISPATCH= flag for build to avoid problem with disabled AVX on Windows
    • update unzipped file when installing Tensorflow test model
  • core
    • add Compare() and CountNonZero() functions
    • add getter/setter using optional params for multi-dimensional Mat using row/col/channel
    • Add mat subtract function
    • add new toRectangle function to DRY up conversion from CRects to []image.Rectangle
    • add split subtract sum wrappers
    • Add toCPoints() helper function
    • Added Mat.CopyToWithMask() per #47
    • added Pow() method
    • BatchDistance BorderInterpolate CalcCovarMatrix CartToPolar
    • CompleteSymm ConvertScaleAbs CopyMakeBorder Dct
    • divide, multiply
    • Eigen Exp ExtractChannels
    • operations on a 3d Mat are not same as a 2d multichannel Mat
    • resolve merge conflict with duplicate Subtract() function
    • run gofmt on core tests
    • Updated type for Mat.GetUCharAt() and Mat.SetUCharAt() to reflect uint8 instead of int8
  • docs
    • update ROADMAP of completed functions in core from recent contributions
  • env
    • check loading resources
    • Add distribution detection to deps rule
    • Add needed environment variables for Linux
  • highgui
    • add some missing test coverage on WaitKey()
  • imgproc
    • Add adaptive threshold function
    • Add pyrDown and pyrUp functions
    • Expose DrawContours()
    • Expose WarpPerspective and GetPerspectiveTransform
    • implement ConvexHull() and ConvexityDefects() functions
  • opencv
    • update to OpenCV version 3.4.1

0.9.0

  • bugfix
    • correct several errors in size parameter ordering
  • build
    • add missing opencv_face lib reference to env.sh
    • Support for non-brew installs of opencv on Darwin
  • core
    • add Channels() method to Mat
    • add ConvertTo() and NewMatFromBytes() functions
    • add Type() method to Mat
    • implement ConvertFp16() function
  • dnn
    • use correct size for blob used for Caffe/Tensorflow tests
  • docs
    • Update copyright date and Apache 2.0 license to include full text
  • examples
    • cleanup mjpeg streamer code
    • cleanup motion detector comments
    • correct use of defer in loop
    • use correct size for blob used for Caffe/Tensorflow examples
  • imgproc
    • Add cv::approxPolyDP() bindings.
    • Add cv::arcLength() bindings.
    • Add cv::matchTemplate() bindings.
    • correct comment and link for Blur function
    • correct docs for BilateralFilter()

0.8.0

  • core
    • add ColorMapFunctions and their test
    • add Mat ToBytes
    • add Reshape and MinMaxLoc functions
    • also delete points
    • fix mistake in the norm function by taking NormType instead of int as parameter
    • SetDoubleAt func and his test
    • SetFloatAt func and his test
    • SetIntAt func and his test
    • SetSCharAt func and his test
    • SetShortAt func and his test
    • SetUCharAt fun and his test
    • use correct delete operator for array of new, eliminates a bunch of memory leaks
  • dnn
    • add support for loading Tensorflow models
    • adjust test for Caffe now that we are auto-cropping blob
    • first pass at adding Caffe support
    • go back to older function signature to avoid version conflicts with Intel CV SDK
    • properly close DNN Net class
    • use approx. value from test result to account forr windows precision differences
  • features2d
    • implement GFTTDetector, KAZE, and MSER algorithms
    • modify MSER test for Windows results
  • highgui
    • un-deprecate WaitKey function needed for CLI apps
  • imgcodec
    • add fileExt type
  • imgproc
    • add the norm wrapper and use it in test for WarpAffine and WarpAffineWithParams
    • GetRotationMatrix2D, WarpAffine and WarpAffineWithParams
    • use NormL2 in wrap affine
  • pvl
    • add support for FaceRecognizer
    • complete wrappers for all missing FaceDetector functions
    • update instructions to match R3 of Intel CV SDK
  • docs
    • add more detail about exactly which functions are not yet implememented in the modules that are marked as 'Work Started'
    • add refernece to Tensorflow example, and also suggest brew upgrade for MacOS
    • improve ROADMAP to help would-be contributors know where to get started
    • in the readme, explain compiling to a static library
    • remove many godoc warnings by improving function descriptions
    • update all OpenCV 3.3.1 references to v3.4.0
    • update CGO_LDFLAGS references to match latest requirements
    • update contribution guidelines to try to make it more inviting
  • examples
    • add Caffe classifier example
    • add Tensorflow classifier example
    • fixed closing window in examples in infinite loop
    • fixed format of the examples with gofmt
  • test
    • add helper function for test : floatEquals
    • add some attiribution from test function
    • display OpenCV version in case that test fails
    • add round function to allow for floating point accuracy differences due to GPU usage.
  • build
    • improve search for already installed OpenCV on MacOS
    • update Appveyor build to Opencv 3.4.0
    • update to Opencv 3.4.0

0.7.0

  • core
    • correct Merge implementation
  • docs
    • change wording and formatting for roadmap
    • update roadmap for a more complete list of OpenCV functionality
    • sequence docs in README in same way as the web site, aka by OS
    • show in README that some work was done on contrib face module
  • face
    • LBPH facerecognizer bindings
  • highgui
    • complete implementation for remaining API functions
  • imgcodecs
    • add IMDecode function
  • imgproc
    • elaborate on HoughLines & HoughLinesP tests to fetch a few individual results
  • objdetect
    • add GroupRectangles function
  • xfeatures2d
    • add SIFT and SURF algorithms from OpenCV contrib
    • improve description for OpenCV contrib
    • run tests from OpenCV contrib

0.6.0

  • core
    • Add cv::LUT binding
  • examples
    • do not try to go fullscreen, since does not work on OSX
  • features2d
    • add AKAZE algorithm
    • add BRISK algorithm
    • add FastFeatureDetector algorithm
    • implement AgastFeatureDetector algorithm
    • implement ORB algorithm
    • implement SimpleBlobDetector algorithm
  • osx
    • Fix to get the OpenCV path with "brew info".
  • highgui
    • use new Window with thread lock, and deprecate WaitKey() in favor of Window.WaitKey()
    • use Window.WaitKey() in tests
  • imgproc
    • add tests for HoughCircles
  • pvl
    • use correct Ptr referencing
  • video
    • use smart Ptr for Algorithms thanks to @alalek
    • use unsafe.Pointer for Algorithm
    • move tests to single file now that they all pass

0.5.0

  • core
    • add TermCriteria for iterative algorithms
  • imgproc
    • add CornerSubPix() and GoodFeaturesToTrack() for corner detection
  • objdetect
    • add DetectMultiScaleWithParams() for HOGDescriptor
    • add DetectMultiScaleWithParams() to allow override of defaults for CascadeClassifier
  • video
    • add CalcOpticalFlowFarneback() for Farneback optical flow calculations
    • add CalcOpticalFlowPyrLK() for Lucas-Kanade optical flow calculations
  • videoio
    • use temp directory for Windows test compat.
  • build
    • enable Appveyor build w/cache
  • osx
    • update env path to always match installed OpenCV from Homebrew

0.4.0

  • core
    • Added cv::mean binding with single argument
    • fix the write-strings warning
    • return temp pointer fix
  • examples
    • add counter example
    • add motion-detect command
    • correct counter
    • remove redundant cast and other small cleanup
    • set motion detect example to fullscreen
    • use MOG2 for continous motion detection, instead of simplistic first frame only
  • highgui
    • ability to better control the fullscreen window
  • imgproc
    • add BorderType param type for GaussianBlur
    • add BoundingRect() function
    • add ContourArea() function
    • add FindContours() function along with associated data types
    • add Laplacian and Scharr functions
    • add Moments() function
    • add Threshold function
  • pvl
    • add needed lib for linker missing in README
  • test
    • slightly more permissive version test
  • videoio
    • Add image compression flags for gocv.IMWrite
    • Fixed possible looping out of compression parameters length
    • Make dedicated function to run cv::imwrite with compression parameters

0.3.1

  • overall
    • Update to use OpenCV 3.3.1

0.3.0

  • docs
    • Correct Windows build location from same @jpfarias fix to gocv-site
  • core
    • Add Resize
    • Add Mat merge and Discrete Fourier Transform
    • Add CopyTo() and Normalize()
    • Implement various important Mat logical operations
  • video
    • BackgroundSubtractorMOG2 algorithm now working
    • Add BackgroundSubtractorKNN algorithm from video module
  • videoio
    • Add VideoCapture::get
  • imgproc
    • Add BilateralFilter and MedianBlur
    • Additional drawing functions implemented
    • Add HoughCircles filter
    • Implement various morphological operations
  • highgui
    • Add Trackbar support
  • objdetect
    • Add HOGDescriptor
  • build
    • Remove race from test on Travis, since it causes CGo segfault in MOG2

0.2.0

  • Switchover to custom domain for package import
  • Yes, we have Windows

0.1.0

Initial release!

  • Video capture
  • GUI Window to display video
  • Image load/save
  • CascadeClassifier for object detection/face tracking/etc.
  • Installation instructions for Ubuntu
  • Installation instructions for OS X
  • Code example to use VideoWriter
  • Intel CV SDK PVL FaceTracker support
  • imgproc Image processing
  • Travis CI build
  • At least minimal test coverage for each OpenCV class
  • Implement more of imgproc Image processing