How to test the line coverage of OpenCV-python

bduan · April 9, 2024, 5:17am

I write a test file for OpenCV-python, and I want to know the coverage of my test file, but I try to test by coverage.py, which can only test on python interface. I’d like to know how to test the line coverage on OpenCV-python！ Thank you very much

berak · April 9, 2024, 9:28am

please explain, what (you think) that is.

opencv is a c++ library, the python bindings are only shallow, auto-generated wrappers around c++ functionality.

and btw, there are unit tests, performance tests, and even python tests for those wrappers, too, care to take a look at github ?

bduan · April 9, 2024, 9:40am

can you give me a github website

berak · April 9, 2024, 9:42am

laurent.berger · April 9, 2024, 10:21am

Did you open all this issues?

github.com/opencv/opencv

Unexpected erroe when invoke cv2.calibrateCamera

opened 12:27AM - 09 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 Op…erating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\calibration.cpp:1483: error: (-211:One of the arguments' values is out of range) The number of points in the view #0 is < 4 in function 'cvCalibrateCamera2Internal' ``` as shown above, my input points set 10, but the error told me <4 ### Steps to reproduce ``` import numpy as np import cv2 objectPoints = (np.random.rand( 10, 1, 3) * 256).astype(np.float32) imagePoints = (np.random.rand( 10, 1, 2) * 256).astype(np.float32) imageSize = (5, 5) cameraMatrix = None distCoeffs = None out1, out2, out3, out4, out5 = cv2.calibrateCamera(objectPoints, imagePoints, imageSize, cameraMatrix, distCoeffs) ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

Unexpected error report when invoke cv2.cornerMinEigenVal

opened 11:43PM - 08 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 Op…erating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description as shown here, said the kernel size myst be odd and not larger than 31, I think my input param is expected. ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\deriv.cpp:104: error: (-211:One of the arguments' values is out of range) The kernel size must be odd and not larger than 31 in function 'cv::getSobelKernels' ``` ### Steps to reproduce ``` import numpy as np import cv2 src = (np.random.rand(10, 10, 1) * 256).astype(np.uint8) blockSize = 3 kSize = 3 borderType = cv2.BORDER_DEFAULT output = cv2.cornerMinEigenVal(src, blockSize, kSize, borderType) print(output) ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

Unexpect error when invoke cv2.sampsonDistance

opened 09:12AM - 08 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 Op…erating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\fundam.cpp:1214: error: (-215:Assertion failed) _pt1.type() == CV_64F && _pt2.type() == CV_64F && _F.type() == CV_64F in function 'cv::sampsonDistance' ``` all of the input param I set were float64 ### Steps to reproduce ``` import numpy as np import cv2 pt1 = (np.random.rand(100, 1, 2)* 256).astype(np.float64) pt2 = (np.random.rand(100, 1, 2)* 256).astype(np.float64) m3 = (np.random.rand(3,3) * 256).astype(np.float64) output = cv2.sampsonDistance(pt1, pt2, m3) print(output) ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

crash and Unknown C++ exception when I invoke cv2.validateDisparity

opened 01:11AM - 08 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 Op…erating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description It will report different crash or bug report, please try it several times! 1. ``` Process finished with exit code -1073740940 (0xC0000374) ``` 2. ``` Unknown C++ exception from OpenCV code ``` of course, it will be successful sometimes, but I meet a lot of times crash or unknown exceoption ### Steps to reproduce ``` import numpy as np import cv2 disparity = (np.random.rand(100, 100, 1) * 256).astype(np.int16) cost = (np.random.rand(100, 100, 1) * 256).astype(np.int16) minDisparity = 3 numberOfDisparities = 7 disp12MaxDisp = 1 output = cv2.validateDisparity(disparity, cost, minDisparity, numberOfDisparities, disp12MaxDisp) print(output) ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

Unexpected error when invoke cv2.correctMatches

opened 12:35AM - 08 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 Op…erating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description I checked my input param, I think they are correct. max is 3x3 matrix, pt1 and pt2 is a points set ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\triangulate.cpp:156: error: (-209:Sizes of input arguments do not match) The point-matrices must have one row, and an equal number of columns in function 'icvCorrectMatches' ``` ### Steps to reproduce ``` import numpy as np import cv2 max = np.array([[133.28685454, 201.58760058, 126.28483141], [218.85759196, 214.70814757, 21.50269382], [151.29091759, 190.73174272, 38.21554576]], dtype=np.float32) points2 = np.array([[115.73466756, 63.21138927], [ 84.3030183 , 225.45245352], [ 34.09884804, 98.12981797]], dtype=np.float32) points3 = np.array([[190.85422998, 55.05627181], [240.19097166, 206.9696157 ], [186.65860323, 123.41471593]], dtype=np.float32) newPoints1, newPoints2 = cv2.correctMatches(max, points2, points3) ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

Unexpected error report when invoke cv2.calibrateCameraROExtended

opened 03:24AM - 07 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 …Operating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\calibration.cpp:1483: error: (-211:One of the arguments' values is out of range) The number of points in the view #0 is < 4 in function 'cvCalibrateCamera2Internal' ``` ### Steps to reproduce ``` a = np.array([[[ 1.7379122 , 151.20229 , 147.24223 ]], [[124.7301 , 241.39586 , 103.984085 ]], [[123.93298 , 232.07417 , 55.491516 ]], [[ 47.45232 , 69.05811 , 144.78935 ]], [[ 7.1045322 , 84.077644 , 102.39535 ]]], dtype=np.float32) b = np.array([[[196.52242 , 245.25883 ]], [[166.80057 , 146.80276 ]], [[149.4871 , 33.189487 ]], [[ 4.4884953, 155.40897 ]], [[223.3596 , 22.199896 ]]], dtype=np.float32) c = (248, 239) d = -1 e = np.array([[ 54.709503, 13.623212, 52.287144], [ 83.650475, 38.88603 , 143.28778 ], [165.09567 , 174.88637 , 90.716805]], dtype=np.float32) f = np.array([[0.], [0.], [0.], [0.], [0.]], dtype=np.float32) if len(a) >= 4 and len(b) >= 4: # Example for initCameraMatrix2D, assuming imageSize and other requirements are met cameraMatrix = cv2.calibrateCameraROExtended(a, b, c, d, e, f, None, None) else: print("Insufficient points for operation.") ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

Unexpected error report when invoke cv2.calibrateCameraRO

opened 03:23AM - 07 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 …Operating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\calibration.cpp:1483: error: (-211:One of the arguments' values is out of range) The number of points in the view #0 is < 4 in function 'cvCalibrateCamera2Internal' ``` ### Steps to reproduce ``` a = np.array([[[ 1.7379122 , 151.20229 , 147.24223 ]], [[124.7301 , 241.39586 , 103.984085 ]], [[123.93298 , 232.07417 , 55.491516 ]], [[ 47.45232 , 69.05811 , 144.78935 ]], [[ 7.1045322 , 84.077644 , 102.39535 ]]], dtype=np.float32) b = np.array([[[196.52242 , 245.25883 ]], [[166.80057 , 146.80276 ]], [[149.4871 , 33.189487 ]], [[ 4.4884953, 155.40897 ]], [[223.3596 , 22.199896 ]]], dtype=np.float32) c = (248, 239) d = -1 e = np.array([[ 54.709503, 13.623212, 52.287144], [ 83.650475, 38.88603 , 143.28778 ], [165.09567 , 174.88637 , 90.716805]], dtype=np.float32) f = np.array([[0.], [0.], [0.], [0.], [0.]], dtype=np.float32) if len(a) >= 4 and len(b) >= 4: # Example for initCameraMatrix2D, assuming imageSize and other requirements are met cameraMatrix = cv2.calibrateCameraRO(a, b, c, d, e, f, None, None) else: print("Insufficient points for operation.") ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

github.com/opencv/opencv

Unexpecr error report when invoke cv2.initCameraMatrix2D

opened 03:18AM - 07 Apr 24 UTC

beanduan22

bug

### System Information Python version: 3.8.18 OpenCV python version: 4.9.0 …Operating System / Platform: Windows-10-10.0.19045-SP0 ### Detailed description ``` as shown below, when I invoke cv2.initCameraMatrix2D, I think the input data is compound expectations. ``` cv2.error: OpenCV(4.9.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\fundam.cpp:385: error: (-28:Unknown error code -28) The input arrays should have at least 4 corresponding point sets to calculate Homography in function 'cv::findHomography' ### Steps to reproduce ``` a = np.array([[[ 1.7379122 , 151.20229 , 147.24223 ]], [[124.7301 , 241.39586 , 103.984085 ]], [[123.93298 , 232.07417 , 55.491516 ]], [[ 47.45232 , 69.05811 , 144.78935 ]], [[ 7.1045322 , 84.077644 , 102.39535 ]]], dtype=np.float32) b = np.array([[[196.52242 , 245.25883 ]], [[166.80057 , 146.80276 ]], [[149.4871 , 33.189487 ]], [[ 4.4884953, 155.40897 ]], [[223.3596 , 22.199896 ]]], dtype=np.float32) c = (1, 1) if len(a) >= 4 and len(b) >= 4: # Example for initCameraMatrix2D, assuming imageSize and other requirements are met cameraMatrix = cv2.initCameraMatrix2D(a, b, c) else: print("Insufficient points for operation.") ``` ### Issue submission checklist - [X] I report the issue, it's not a question - [X] I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution - [X] I updated to the latest OpenCV version and the issue is still there - [X] There is reproducer code and related data files (videos, images, onnx, etc)

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