Procedure signal adaptive filtering, adaptive filter signals and computer readable medium for storing a program for the same.

摘要

Procedure signal adaptive filtering, adaptive filter signals and computer readable medium for storing a program for the same.; The method of signal adaptive filtering capable of reducing blocking effect and ringing noise of image data when a frame is composed of blocks of a predetermined size, comprising the following steps: (a) generating blocking information for reducing the blocking effect and ringing information for reducing the ringing noise, from coefficients of predetermined areas of upper limit and left data block pixels when a frame obtained by decomposing image data bit stream for inverse quantization is an intraframe; and (b) filtering adaptively the image data passing through the inverse quantization and inverse discrete cosine transform according to the information generated on the block and hum, so that can be removed the blocking effect and the noise hum of the restored image from the image based on blocks, thereby enhancing the image restored from compression.