Patent ID: 6198850
Filing Date: 2001-03-06
Classification: H04N

Abstract:
An image data processing system, comprising:a segmenter that receives image data and segments the image data into lossy and lossless data;a first storage device that temporarily stores the segmented lossless data;an artificial lossless data generator that generates artificial lossless data based on a value stored in the first storage device;an artificial lossy data generator that generates artificial lossy data based on a value stored in a second storage device;a lossless compressor that compresses the lossless data stored in the first storage device and the artificial lossless data generated by the artificial data generator;a lossy compressor that compresses the lossy data segmented by the segmenter and the artificial lossy data generated by the artificial lossy data generator; anda third storage device that stores the compressed lossy and lossless data,wherein the artificial lossless data generator generates artificial lossless data based on a value of a last pixel in each scanline in a previously compressed lossless data block.