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- W870392965 abstract "In this paper, we present a brief study about the performance of nine post-processing methods on blocked images, and two new approaches which propose, respectively, the reduction of the blocking artifact and a measur e for the visual perception of the Human Visual System (HVS) regarding this distortion. The studies concerning the chosen methods consist of detailed analysis about their methodolog y and their computational implementation. A new visual perception metric is introduced, which is called Blocking Visual Effe ct Index (BVEI). It is based on loss of correlation criteria in inter-blocks regions, distortion of local average luminance, and takes into account the contrast perception sensibility of huma n eye. The proposed post-processing method considers the features of HVS when varying the smoothing parameter inside the blocking areas in accordance with the perception of blocking artifacts. Thus, they are smoothed without loss of details. Ai ming at obtaining a consistence with subjective evaluation of post- processed images, this work provides comparative tests for evaluating the performance of the chosen methods and the proposed one, Also it emphasizes the efficiency of the new quality metric. This efficiency is evidenced by the increase of quality of post-processing images, regarding the te st images." @default.
- W870392965 created "2016-06-24" @default.
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- W870392965 date "2011-01-01" @default.
- W870392965 modified "2023-10-03" @default.
- W870392965 title "A Novel Blocking Effect Reduction Method Based on Human Visual System Features" @default.
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- W870392965 doi "https://doi.org/10.6084/m9.figshare.1284453.v1" @default.
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