Visualization after mean subtraction

[999Yy999]

When I draw the figure after mean subtraction by cv2.imshow() function, the figure became colorful which colors didn't show up in the original figure. someone tells me why?


Thanks!

[999Yy999]

@YanchaoYang

[brave-ciao]

When I draw the figure after mean subtraction by cv2.imshow() function, the figure became colorful which colors didn't show up in the original figure. someone tells me why? Thanks!

Have you been able to resolve the issue, please?

[Klopotek0]

Normalize image to 0:255 values