A fast adaptive image restoration filter for reducing block artifact in compressed images
作者： Yoo Chan Choung , Joon Ki Paik
DOI: 10.1109/30.642409
关键词:
摘要: We propose a fast adaptive image restoration filter using DCT-based block-classification for reducing block artifact in compressed images. More specifically, edge direction of each is classified by the DCT coefficients, and constrained least squares (CLS) with corresponding used smoothing discontinuity between blocks. For real-time application, proposed can be realized form truncated FIR filter, which suitable postprocessing reconstructed images HDTV, DVD, or video conferencing systems.
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