: The human brain is much better at detecting differences in brightness ( luminance ) than in color ( chrominance ).
blocks and simplifies the details within each. This is why extremely high compression results in "blocky" artifacts. What Is a JPEG or JPG File Format? Download 1667989182175 jpg
: JPG compression aggressively discards color data while keeping brightness levels intact. This allows the file to be up to 10 to 20 times smaller than the original without a noticeable difference to the average viewer. 8x8 Pixel Blocking : The algorithm breaks an image into tiny : The human brain is much better at