Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images.
Alessandro FoiVladimir KatkovnikKaren O. EgiazarianPublished in: IEEE Trans. Image Process. (2007)
Keyphrases
- gray scale
- pointwise
- color images
- denoising
- high quality
- image processing
- discrete cosine transform
- grayscale images
- binary images
- gray scale images
- weighted sum
- mathematical morphology
- image denoising
- color space
- color information
- gray level
- blocking artifacts
- frequency domain
- compressed images
- image quality
- gray images
- inverse halftoning
- visual quality
- high resolution
- texture information
- structuring elements
- dct coefficients
- natural images
- roc curve
- transform domain
- error diffusion
- shape representation
- gaussian noise
- image enhancement
- linear combination
- objective function