I'm trying to decode some image information to Windows Bitmap format, and all of the data is written exactly right (checked with a hex editor), but I'm getting a picture that looks more like static ...

(a) Background: Region of interest (ROI) image coding allows for encoding the ROIs in an image with better quality than the background (BG). It is very useful for visual communication applications ...

Abstract: Partial encryption of images can be considered to be better than the existing image encryption techniques in the application areas where computational overhead is the main criterion. In this ...