This Recommendation | International Standard defines a set of lossless (bit-preserving) and lossy compression methods for coding bi-level, continuous-tone grey-scale, palletized color, or continuous tone colour digital still images. This Recommendation | International Standard: specifies decoding processes for converting compressed image data to reconstructed image data; specifies a codestream syntax containing information for interpreting the compressed image data; specifies a file format; provides guidance on encoding processes for converting source image data to compressed image data; provides guidance on how to implement these processes in practice.