Improved spread transform dither modulation-based watermark algorithm based on step projection

Quantization Index Modulation is an important class of watermark methods, which has been widely used in blind watermark applications. And it is well known that spread transform dither modulation (STDM), as an extension of QIM, has good performance in robustness to random noise and re-quantization. H...

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Hauptverfasser:	Xinchao Li, Ju Liu, Jiande Sun, Zhaowan Sun, Huibo Hu, Lei Zhang
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Content Protection Digital modulation Digital Watermarking Educational programs Information science Laboratories Noise robustness Perceptual Model Quantization Quantization Index Modulation Signal processing algorithms STDM Step-Projection Sun Transform coding Watermarking
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