Noise Benefits in Quantizer-Array Correlation Detection and Watermark Decoding.
Ashok PatelBart KoskoPublished in: IEEE Trans. Signal Process. (2011)
Keyphrases
- watermark detection
- digital images
- low signal to noise ratio
- joint detection
- noise level
- geometric distortions
- signal to noise ratio
- coding scheme
- watermarking scheme
- watermarking algorithm
- noisy environments
- additive noise
- dct domain
- noise model
- vector quantization
- quantization error
- image processing
- color quantization
- image quality
- image compression
- geometric attacks