Figure 1. (a) Original watermark (b) extracted watermarks after compression(c) merged watermark-Discrete Wavelet Transform Method: A New Optimized Robust Digital Image Watermarking Scheme
| Main Authors: | Hassan Talebi, Behzad Poursoleyman |
|---|---|
| Format: | info Image |
| Bahasa: | eng |
| Terbitan: |
, 2012
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| Subjects: | |
| Online Access: |
https://www.edusoft.ro/brain/index.php/brain/issue/view/23 |
Daftar Isi:
- Therefore, each bit of the logo watermark is stored in one coefficient of a sub-block to keep the capacity of watermarking fixed. When a region of the watermarked image is destroyed; the whole watermark can be extracted using other regions of the watermarked image by merging extracted watermarks. Figure 1 shows result of merging logo watermarks that were extracted from a compressed (with JPEG2000 algorithm) watermarked image.