- 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
- 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
- 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
- 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
- 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)
- 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
- 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.
- 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
- 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
- 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
- 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
- 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.
- 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
- 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
- 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
- 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
- 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()
- 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
- 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
- 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
- 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
- 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
- overall
- Update to use OpenCV 3.3.1
- 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
- Switchover to custom domain for package import
- Yes, we have Windows
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