Halftone to continuous-tone conversion of error-diffusion coded images.
Søren HeinAvideh ZakhorPublished in: ICASSP (5) (1993)
Keyphrases
- preprocessing
- coded images
- error diffusion
- post processing
- image quality
- visual quality
- low bit rate
- blocking artifacts
- human visual system
- gray scale
- halftone images
- quantization error
- quantization noise
- gray level
- error concealment
- inverse halftoning
- halftoning algorithm
- reconstructed image
- discrete cosine transform
- image data
- compression ratio
- data hiding
- bit rate
- frequency domain
- quality assessment
- peak signal to noise ratio
- high frequency
- dct coefficients
- compressed images
- image processing
- transform coding
- compression algorithm
- binary images
- computational complexity
- multiscale