2010 Fiscal Year Final Research Report
Research on lossless and near-lossless coding of still images and information embedding
| Project/Area Number |
19560405
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kagoshima National College of Technology |
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Principal Investigator |
KAJISA Kiyomitsu Kagoshima National College of Technology, 情報工学科, 教授 (10342594)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 可逆符号化 / 準可逆 / 誤差拡散 / 情報埋め込み / 色変換 / 縮退 / 算術符号化 / JPEG-LS |
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| Research Abstract |
In this research, five new methods were proposed concerning on lossless and near-lossless coding of continuous-tone images and information embedding. Actually, five new methods : (1) block coding of error-diffused images with information embedded, (2) an error diffusion method for improving compression ratio by arithmetic block coding, (3) an information embedding method in JPEG-LS lossless coding, (4) a coding method of ROI (Region Of Interest) by reversible color transform and its background by near-lossless, (5) an improved method of modulo reduction of reversible color transform, were proposed.
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