Keyphrases
- visual quality
- image quality
- peak signal to noise ratio
- image data
- perceptual quality
- higher psnr
- contrast enhancement
- decoded image
- image database
- human visual system
- high frequency
- bit rate
- image retrieval
- enhanced image
- image features
- input image
- pixel values
- image analysis
- compressed images
- contrast sensitivity
- signal noise ratio
- image classification
- color restoration
- low bit rate
- edge detection
- test images
- jpeg images
- quality metrics
- reconstructed image
- video coding
- similarity measure
- visual information