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In this paper, a high rate compression of color images is achieved using colorization technique and smooth L0 (SL0) minimization. At encoder, the color image is converted into Ycbcr space. The luminance (Y) information of image is segmented using fuzzy-c-means to construct colorization matrix. This colorization matrix is used in choosing few important color representative pixels (RP) by applying SL0...
The JPEG standard is one of the most prevalent image compression schemes in use today. While JPEG was designed for use with natural images, it is also widely used for the encoding of raster documents. Unfortunately, JPEG's characteristic blocking and ringing artifacts can severely degrade the quality of text and graphics in complex documents. We propose a JPEG decompression algorithm which is designed...
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