A Survey on Various Compression Artifact Removal Techniques

By the application of lossy data compression, distortion will occur for media. This media can be image, audio, or video. Compression artifact is one of the noticeable distortion of media which occur as a result of lossy data compression. At high compression ratios, the visibility of image degradations is one of the most important drawback of the current video coding standards. Due to the rigid block partitioning of the image, these image degradations leads to blocking artifacts and due to coarse quantization it leads to ringing noise mainlys around edges. Both the blocking and ringing noise are visibly annoying and have a great impact on the received image quality. So, for improving the quality of the reconstructed image we must remove the blocking and ringing noise. In some techniques, blocking noise will be removed from the image, but there will be large amount of blurriness. This paper is a survey on various compression artifact removal techniques.