A Study on Lossless Image Compression Based on the Pixel-value-difference Technique
碩士 === 國立臺北大學 === 資訊工程學系 === 103 === In this thesis, a novel lossless image compression algorithm using pixel-value-difference technique is proposed. We observe that, in an image, values of two adjacent pixels are very close. Based on this observation, the distribution of difference values is a Lapl...
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| Format: | Others |
| Language: | en_US |
| Published: |
2015
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| Online Access: | http://ndltd.ncl.edu.tw/handle/07264876548233473447 |
| Summary: | 碩士 === 國立臺北大學 === 資訊工程學系 === 103 === In this thesis, a novel lossless image compression algorithm using pixel-value-difference technique is proposed. We observe that, in an image, values of two adjacent pixels are very close. Based on this observation, the distribution of difference values is a Laplacian-like distribution. Thus it can be compressed very well. Experiments show that the performance and the compression ratio of the proposed method are better than that of JPEG2000.
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