Exception in FacemarkLBF fit method #2140
Description
I think there is a bug in python binding using last opencv_contrib
General configuration for OpenCV 4.1.0-dev =====================================
Version control: 4.0.1-898-gf3de2b4be
Extra modules:
Location (extra): G:/Lib/opencv_contrib/modules
Version control (extra): 3.4.1-531-g250bcd9f
Platform:
Timestamp: 2019-05-24T11:22:17Z
Host: Windows 10.0.17763 AMD64
CMake: 3.13.2
CMake generator: Visual Studio 15 2017 Win64
CMake build tool: C:/Program Files (x86)/Microsoft Visual Studio/2017/Enterprise/MSBuild/15.0/Bin/MSBuild.exe
MSVC: 1916
Detailed description
loading data from : F:/TestDNN/OpenFace/lbfmodel.yaml
[ INFO:0] global G:\Lib\opencv\modules\core\src\ocl.cpp (888) cv::ocl::haveOpenCL Initialize OpenCL runtime...
OpenCV: terminate handler is called! The last OpenCV error is:
OpenCV(4.1.0-dev) Error: Assertion failed (channels() == CV_MAT_CN(dtype)) in cv::Mat::copyTo, file G:\Lib\opencv\modules\core\src\copy.cpp, line 254
Steps to reproduce
path_to_opencv_extra ='f:/lib/'
frame = cv.imread(path_to_opencv_extra + 'opencv_extra/testdata/cv/face/david1.jpg')
if frame is None:
print("image not found")
exit()
facemark = cv.face.createFacemarkLBF()
facemark.loadModel("F:/TestDNN/OpenFace/lbfmodel.yaml")
cascade = cv.CascadeClassifier(path_to_opencv_extra + 'opencv_extra/testdata/cv/face/lbpcascade_frontalface_improved.xml')
if cascade.empty() :
print("cascade not found")
exit()
faces = cascade.detectMultiScale(frame, 1.05, 2, cv.CASCADE_SCALE_IMAGE, (30, 30))
ok, landmarks = facemark.fit(frame, faces)
How to solve it? https://github.com/LaurentBerger/opencv_contrib/blob/pyfacelandmark/modules/face/src/facemarkLBF.cpp#L373-L414
previous interface was better and this pr #2069 doesn't not solve previous bug