Hi, I want to link two images and compare them in the same region. The two images are taken from the same scene but they have different sizes, so I can't really link them to the same region and sometimes it will even go out of range. Is there anyway I can do this? Also, I noticed that on the top bar of the scroll window, there is a number in the round brackets. And that number of the two images is different. What does that number stand for? Thanks!