Encoding apparatus for compressing and outputting image data

摘要

An encoding apparatus for compressing and outputting image data by performing prediction differential encoding of the image data. The apparatus forms first prediction data, receives the image data and forms and outputs first differential data which is equal to the difference between the received image data and the first prediction data. The apparatus also quantizes the first differential data and forms first quantization differential data. Second predication data is formed and output, and a second differential data which is equal to the difference between the first prediction data and the second prediction data.