Color Image Compression Based on Directional All Phase Biorthogonal Transform
نویسندگان
چکیده
منابع مشابه
Color Image Compression Based on Directional All Phase Biorthogonal Transform
There are images in which some directional edges other than the vertical or horizontal ones dominate. So the conventional discrete cosine transform (DCT) may not be the best choice for them. Directional DCT framework is able to provide a better coding performance for image blocks that contain directional edges. In addition, the all phase biorthogonal transform (APBT) algorithm can improve the p...
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The vertical or horizontal edges don’t dominate in some frames of video sequence, so the conventional discrete cosine transform (DCT) may not be the best choice for those frames. Directional DCT framework behaves better than conventional DCT in coding performance for images where directional edges dominate. In addition, the all phase biorthogonal transform (APBT), which is used in image compres...
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In this paper, all phase biorthogonal transform (APBT) based on parallel algorithm is proposed. It can solve two problems. First, block-based DCT transform coding has serious blocking artifacts when the image is highly compressed at low bit rate. Second, APBT can solve the problem about blocking artifacts, but it does not have a fast algorithm, it has a low efficiency when APBT applies to image...
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ژورنال
عنوان ژورنال: International Journal of Multimedia and Ubiquitous Engineering
سال: 2015
ISSN: 1975-0080
DOI: 10.14257/ijmue.2015.10.1.24