Question

I am using opencv to process very large images (some times even more than 2500×2000). When I display such an image using a normal cvNamedWindow it occupies the whole screen and even I am unable to scroll down or sideways to see other parts. Is it possible to reduce the size of image only while displaying?

Note: the size of my images are not constant

platform used : visual studio

Answer 1

You have to use the flag CV_WINDOW_NORMAL to alter this behavior. This flag will make the window manually-resizable.

cvNamedWindow(yourWindowName, CV_WINDOW_NORMAL);