Preserving image features in digital halftoning with a multiscale error diffusion technique.
Yuk-Hee ChanSin-Ming CheungPublished in: DSP (2002)
Keyphrases
- error diffusion
- multiscale
- image features
- gray scale
- image representation
- image quality
- scale space
- gray level
- quantization error
- keypoints
- inverse halftoning
- human visual system
- noise shaping
- halftoning algorithm
- image classification
- edge enhancement
- image segmentation
- frequency domain
- image processing
- object recognition
- halftone images
- computer vision
- binary images
- texture features
- feature detection
- filter bank
- visual words
- wavelet transform
- feature vectors
- wavelet coefficients
- gray scale images
- high quality
- image coding
- color palette
- image data
- direct binary search
- blue noise