At a high level, JPEG is a lossy image compression technique. What you may not realize is that achieving this required a fascinating blend of human perception, elegant signal processing, and clever engineering prowess.
Let's begin with a visual challenge: What are the colors of the tiles marked as A and B in the image?
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Using end-to-end encrypted messaging services can make this data inaccessible to third parties and protection from bad actors. So the question is, which popular messaging apps use end-to-end encryption?
