Combined de-noising and sharpening of color images in DCT domain.
Radu Ciprian BilcuSakari AleniusMarkku VehvilainenPublished in: DPS (2009)
Keyphrases
- dct domain
- color images
- denoising
- spatial domain
- dct coefficients
- post processing
- transform domain
- discrete cosine transform
- digital video
- compressed domain
- human visual system
- gray scale
- low pass filtering
- wavelet domain
- compressed images
- quantization step
- low frequency
- frequency domain
- digital images
- image resizing
- video transcoding
- contrast enhancement
- edge detection
- image denoising
- filtering method
- image blocks
- reference frame
- gray level