JPEG Compression — Media Authentication Glossary | Danaya

A lossy compression standard for digital images that introduces characteristic artifacts.

What is JPEG Compression?

JPEG uses lossy compression that divides images into 8x8 pixel blocks and applies DCT transformation. Each save-and-recompress cycle introduces additional artifacts, which can be analyzed forensically.

Related Terms

Compression Artifact

Visual defects introduced by lossy compression of digital media.

Error Level Analysis

A forensic technique that identifies areas of an image with different compression levels.