cv2 error

[pr4deepr]

Hi

I was trying faststain on some tif images and ran into this error

Traceback (most recent call last):
  File "C:\ProgramData\Miniconda3\envs\faststain\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\ProgramData\Miniconda3\envs\faststain\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\ProgramData\Miniconda3\envs\faststain\Scripts\faststainnorm.exe\__main__.py", line 7, in <module>
  File "C:\ProgramData\Miniconda3\envs\faststain\lib\site-packages\source\__main__.py", line 217, in main
    run(*vars(ret).values())
  File "C:\ProgramData\Miniconda3\envs\faststain\lib\site-packages\source\__main__.py", line 75, in run
    target = cv2.cvtColor(cv2.imread(reference_image_filename), cv2.COLOR_BGR2RGB)
cv2.error: OpenCV(4.5.3) C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-q3d_8t8e\opencv\modules\imgcodecs\src\loadsave.cpp:77: error: (-215:Assertion failed) pixels <= CV_IO_MAX_IMAGE_PIXELS in function 'cv::validateInputImageSize'

It looks like an opencv error related to input image size. The images are around 800 MB and 1.5GB each (input and reference image). I tried editing the _ main _.py file and including this os.environ["OPENCV_IO_MAX_IMAGE_PIXELS"] = str(pow(pow(2,40))) before importing cv2. This doesn't fix it unfortunately.

Cheers Pradeep