Grouping strategies for promoting image quality of watermarking on the basis of vector quantization.
Cheng-Hsing YangChi-Yao WengShiuh-Jeng WangHung-Min SunPublished in: J. Vis. Commun. Image Represent. (2010)
Keyphrases
- vector quantization
- image quality
- image compression
- vector quantizer
- visual quality
- image data
- fractal image compression
- quality assessment
- reconstructed image
- human visual system
- lossy compression
- fractal image coding
- bit rate
- high quality
- reduced complexity
- distortion measure
- compression ratio
- codebook design
- digital images
- low bit rate
- watermarking algorithm
- copyright protection
- successive approximation
- vector quantized
- multiresolution
- neural network
- finite state vector quantization