Here are some pretty impractical "frozen" motion shot of my BOUNCE2 program -
While these images are quite VIVID viewed on a "normal" computer screen, the image is here rendered in JPEG. Although it will appear there are areas of exactly even colour, that is like business graphics, the conversion process will now make it more difficult for an OCR type program to get back the EXACT lines and shapes from these.
What you will no doubt recognise as the top left hand corner of the original expanded or zoomed out about 4, 5 times contains what I could only call colour aberrations, but I think JPEG uses the word alias. Notice there are NO solid boundaries. What started for example as a simple orange flood of a single colour in the business graphics, we can see one of the main picture exchanges, JPEG has what look like say bursts of colour when ever one colour meets another ... or something like that !