Improving Image Quality for JPEG Compression.
Chin-Chen ChangYung-Chen ChouJau-Ji ShenPublished in: KES (3) (2005)
Keyphrases
- image quality
- jpeg compression
- peak signal to noise ratio
- jpeg compressed images
- visual quality
- image watermarking
- digital images
- reconstructed image
- compression ratio
- watermarking algorithm
- high quality
- image data
- human visual system
- quality assessment
- geometric distortions
- watermarking scheme
- discrete wavelet transform
- compressed images
- lossy compression
- jpeg images
- bit rate
- gaussian noise
- additive noise
- dct coefficients
- error diffusion
- wavelet domain
- high frequency
- video analysis
- maximum likelihood
- digital image watermarking scheme