Enhancement of Color Images by Scaling the DCT Coefficients.
Jayanta MukherjeeSanjit K. MitraPublished in: IEEE Trans. Image Process. (2008)
Keyphrases
- dct coefficients
- color images
- discrete cosine transform
- color components
- image processing
- dct domain
- contrast enhancement
- gray scale
- compressed domain
- transform domain
- image enhancement
- feature vectors
- jpeg compression
- color information
- color space
- jpeg images
- watermarking algorithm
- macroblock
- computer vision
- motion vectors
- compressed images
- low frequency
- spatial domain
- rate distortion
- gray level
- multiresolution
- feature selection