Hello. I am trying to process scans of a music album's cover & compact disc. The images that the scanner produced have A4 paper sheet's aspect ratio and bigger part of them is plain white space that i want to crop out. The problem is after i do, the resulting image's file size is multiple times that of the original. For example:
Input: 4956x7009 1,34 Mb
Output: 2871x2882 11,7 Mb
All i did is cropped out parts of the image that are nothing but plain white color. How come the result turns out to be bigger than the original?