Blind evaluation of additive noise variance in textured images by nonlinear processing of block DCT coefficients.
Nikolay N. PonomarenkoVladimir V. LukinSergey K. AbramovKaren O. EgiazarianJaakko T. AstolaPublished in: Image Processing: Algorithms and Systems (2003)
Keyphrases
- dct coefficients
- textured images
- discrete cosine transform
- compressed domain
- transform domain
- natural images
- feature vectors
- color images
- texture features
- texture images
- face recognition
- watermarking algorithm
- markov random field
- color information
- spatial domain
- frequency domain
- model selection
- texture information
- image compression
- image noise
- feature selection