Edge statistics-based image scale ratio and noise strength estimation in DCT-coded images.
Sangkeun LeePublished in: IEEE Trans. Consumer Electron. (2009)
Keyphrases
- coded images
- quantization noise
- discrete cosine transform
- blocking artifacts
- post processing
- low bit rate
- noise free image
- error concealment
- visual quality
- image structure
- dct coefficients
- edge detection
- image quality
- image blocks
- image segmentation
- higher quality
- input image
- transform domain
- image data
- multiscale
- low frequency
- natural images
- image compression
- dct domain
- compressed data
- high resolution
- image processing