I am using a template matching algorithm to find a region in an image.
Now there is something strange about the templates I am using. Some of them work and some others don't. And I can't find out the difference. They share the same size, channels and file format. The only difference I found is the size.
Can you tell me what the difference is?
Image1 (4kb): https://www.dropbox.com/s/2fqlu7m5w6gtcg8/hist1.png
Image2 (5kb): https://www.dropbox.com/s/5q6yasitszdzwn4/hist2.png