Removing Gaussian noise for colour images by quaternion representation and optimisation of weights in non-local means filter.
Beijing ChenQuansheng LiuXingming SunXu LiHuazhong ShuPublished in: IET Image Process. (2014)
Keyphrases
- gaussian noise
- denoising
- colour images
- noise removal
- impulse noise
- noise suppression
- noise reduction
- impulsive noise
- noise level
- noisy images
- denoising algorithm
- salt and pepper noise
- noise variance
- noise model
- multi valued
- signal to noise ratio
- image denoising
- image restoration
- morphological operators
- mathematical morphology
- natural images
- image processing
- colour space
- colour image segmentation
- image noise
- single image
- edge detection
- co occurrence
- wavelet domain
- image quality
- color images