Additive vs. Image Dependent DWT-DCT Based Watermarking
| Autor: | Melih Pazarci, Serkan Emek |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Discrete wavelet transform
Steganography Computer science business.industry Speech recognition ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Pattern recognition Watermark Data_CODINGANDINFORMATIONTHEORY Image (mathematics) Digital image Discrete cosine transform Benchmark (computing) Artificial intelligence business Digital watermarking |
| Zdroj: | Multimedia Content Representation, Classification and Security ISBN: 9783540393924 MRCS |
| DOI: | 10.1007/11848035_15 |
| Popis: | We compare our earlier additive and image dependent watermarking schemes for digital images and videos. Both schemes employ DWT followed by DCT. Pseudo-random watermark values are added to mid-frequency DWT-DCT coefficients in the additive scheme. In the image dependent scheme, the watermarking coefficients are modulated with original mid-frequency DWT-DCT coefficients to increase the efficiency of the watermark embedding. Schemes are compared to each other and comparison results including Stirmark 3.1 benchmark tests are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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