Reversible color-to-gray mapping using subband domain texturization.
Ricardo L. de QueirozPublished in: Pattern Recognit. Lett. (2010)
Keyphrases
- subband
- filter bank
- wavelet transform
- image compression
- multiresolution
- wavelet coefficients
- bit rate
- high frequency
- wavelet decomposition
- frequency domain
- locally adaptive
- color images
- subband coding
- feature vectors
- subband decomposition
- wavelet domain
- image coder
- discrete wavelet transform
- low pass
- color information
- low frequency
- visual quality
- reconstruction error
- wavelet packet
- wavelet transform coefficients
- frequency band
- transform coefficients
- directional information
- image coding
- markov chain
- non subsampled contourlet transform
- computer vision
- perfect reconstruction
- lifting scheme
- color constancy
- image quality
- multiscale
- image segmentation