【国外标准】 Information technology - Digital compression and coding of continuous-tone still images: Extensions

Applies to continuous-tone grayscale or colour-digital still image data. It is applicable to a wide range of applications which require use of compressed images. Defines extensions [including variable quantization, selective refinement, tiling, and a Still Picture Interchange File Format (SPIFF)] to processes for converting Source image data to compressed image data. Defines extensions to processes for converting compressed image data to reconstructed image data.