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                                            Stanislav

metre_pixel_x,metre_pixel_y,coordinate,affine_correct_parameters=analyze_chessboard(image,affine_correct_flag) TypeError: cannot unpack non-iterable NoneType object

> (3024L, 4032L, 3L) > Segmentation Completed 1 > Traceback (most recent call last): > File "code2.py", line 399, in > main() > File "code2.py", line 379, in main >...

metre_pixel_x,metre_pixel_y,coordinate,affine_correct_parameters=analyze_chessboard(image,affine_correct_flag) TypeError: cannot unpack non-iterable NoneType object

> File "code2.py", line 228, in analyze_chessboard > cv2.setMouseCallback(window_name1, click_and_crop) > cv2.error: OpenCV(4.0.0) /io/opencv/modules/highgui/src/window_QT.cpp:714: error: (-27:Null pointer) NULL window handler in function 'cvSetMouseCallback' > > I'm getting this error @leisther,...

metre_pixel_x,metre_pixel_y,coordinate,affine_correct_parameters=analyze_chessboard(image,affine_correct_flag) TypeError: cannot unpack non-iterable NoneType object

> ![screenshot from 2019-02-06 14-37-27](https://user-images.githubusercontent.com/41266582/52324688-3ef25d80-2a1d-11e9-9c6f-6309160b7720.png) > > File "code2.py", line 226, in analyze_chessboard > clone = image.copy() > AttributeError: 'NoneType' object has no attribute 'copy' > > how to fix...

cv2.error: NULL window handler in function 'cvSetMouseCallback'

> ``` > python code2.py -i1 aman1.jpg -i2 aman2.jpg -i3 aman3.jpg -a True > helllooooo > > Traceback (most recent call last): > File "code2.py", line 401, in > main()...

cv2.error: NULL window handler in function 'cvSetMouseCallback'

> Traceback (most recent call last): > File "experiment.py", line 378, in > main() > File "experiment.py", line 341, in main > metre_pixel_x,metre_pixel_y,coordinate,affine_correct_parameters=analyze_chessboard(image,affine_correct_flag) > File "experiment.py", line 222, in analyze_chessboard...