Detecting shapes in an image

[qwertynik]

@Micka

for (int i = 100; i > 1; i = i - 10)
	{
		cv::Mat mask = combined > i;
		cv::imwrite("C:/data/StackOverflow/shape_" + std::to_string(i) + ".png", mask);
		cv::resize(mask, mask, cv::Size(), 0.5, 0.5);
		cv::imshow("shapes", mask);
		cv::waitKey(0);
	}

Thanks for the detailed code snippet @Micka. Since Python is currently being used, had translated the code snippet you posted. After resolving some basic issues, I am currently looking to implement the masking you implemented. Below error is thrown.

cv2.error: OpenCV(4.5.4) :-1: error: (-5:Bad argument) in function 'resize'
> Overload resolution failed:
>  - src data type = 0 is not supported
>  - Expected Ptr<cv::UMat> for argument 'src'

Post masking all values on the combined array become false. Would be great if you could add clarity for implementing the masking portion of your algorithm.