Adaptive Descreening Algorithm Based on CMYK Printing Model
Presents a novel adaptive descreening algorithm for scanned halftone images that printed with AM screening. The proposed algorithm based on the rule of CMYK printing and how the moiré patterns formed, which can exactly find out the halftone peaks in the Fourier spectrum and have them processed. Because of only having the halftone peaks processed, the restored images not only have good quality, but also greatly preserve the image information. More importantly, the algorithm is more preponderant than other current descreening methods to remove moiré patterns (especially low frequency moiré patterns).
NETL
NSTL
万方数据
维普
