Articles by tag: dct

Perceptual hash: search for similar images

How perceptual hashing algorithms work: from simple averaging to DCT. Comparison of methods and practical application for developers.

JPEG and visual neurophysiology: how the format deceives the eye

Technical breakdown of JPEG through the prism of vision biology: YCbCr, chroma subsampling, DCT and quantization as implementation of CSF. For middle/senior developers.