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  • << Results for terms beginning with C // Compression Artifact

    What is compression artifact?

    Compression artifact refers to the significant distortion of media after the use of lossy compression. Lossy compression involves discarding of data to make it small enough for storing or transferring. Compression artifacts occur when the compressor does not store enough data. The compression algorithm may not be able to differentiate between distortions of little subjective importance and those objectionable by users. Compression artifacts commonly occur in DVDs, JPEG, MP3, and MPEG files.

    What are the ways to reduce compression artifacts?

    Compression artifacts do not occur in lossless compression. Deblocking filters can reduce compression artifacts at block boundaries.

    What are the ways to look at compression artifacts in images?

    A frequency-domain technique was introduced by G.A. Triantafylidis to detect and reduce image blocky artifacts. I.O Kirenko introduced a method to reduce blocky artifacts in MPEG compressed video. According to a paper, some researchers in Indonesia have formed an algorithm to detect blocky artifacts using MATLAB software.