Study of Wavelet-Based Watermarking Using Improved Two-Layer Coding Scheme
碩士 === 清雲科技大學 === 電機工程系所 === 97 === A wavelet-based watermarking process utilizing improved channel coding techniques is proposed. The image is decomposed by discrete wavelet transform (DWT) and the watermarks are embedded in sub-blocks of the third level by adjusting the coefficients. After data pe...
| Main Authors: | , |
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| Format: | Others |
| Language: | zh-TW |
| Online Access: | http://ndltd.ncl.edu.tw/handle/92163901071505472127 |