The image is divided into small blocks (usually 8x8 pixels), and the mathematical DCT is applied to represent these blocks as a sum of different frequencies.
, which can pinpoint the precise location of the image. The Universal Standard IMG_20230302_113253_198.jpg
The image is converted from RGB (Red, Green, Blue) to YCbCr, which separates brightness (luminance) from color (chrominance). The image is divided into small blocks (usually
This is the primary "lossy" step where high-frequency information (fine detail) is reduced, significantly shrinking the file size. Metadata and Digital Footprints Blue) to YCbCr