Image data compression apparatus and image data communication system

摘要

An image data compression apparatus and image data communication system is disclosed for compressing color image data in relatively simple software process, and compressing a still or moving picture of a color image to be transmitted and/or received thereby. The image data compression apparatus generates image data having pixel data, each of which is constituted by a luminance signal and color difference signals, and generates nxm block data. Block components constituted by a plurality of luminance signals, color difference signals, and an nxm bit map representing a distribution of luminance signal components, all of which represent the generated blocks, are generated to compress the data.