4 ms·
I thought the same thing from the opposite direction. My understanding of jpg compression is that the algorithm says, "I see you have a lot of color X, X+1, and
by zerohm 11y ago
I thought the same thing from the opposite direction. My understanding of jpg compression is that the algorithm says, "I see you have a lot of color X, X+1, and X+2 in this area. Let's just call all of that region color X+1." Now you only have the ability to hide a bit in that whole region, instead of for every pixel within.
- ikeboy 11y agoThat's lossy compression. If you try to embed data and then use lossy compression, your data will be messed up. If you insist on not losing anything, it will take up as much space as it would otherwise.