The role of perceptual contrast non-linearities in image transform quantization.
Jesus MaloFrancesc J. FerriJesús V. AlbertJ. SoretJosé M ArtigasPublished in: Image Vis. Comput. (2000)
Keyphrases
- image data
- image features
- image analysis
- input image
- single image
- multiscale
- contrast enhancement
- transform coefficients
- image classification
- template matching
- image content
- perceptually significant
- image segmentation
- visual perception
- image representation
- segmentation method
- high resolution
- image regions
- segmentation algorithm
- edge detection
- low level
- perceptual grouping
- quantization step
- color channels
- test images
- perceptual quality
- enhanced image
- image retrieval
- quantization noise
- discrete fourier transform
- histogram equalization