A Review on Scanned color image improvement using image descreening
نویسنده
چکیده
To print continuous tone images, Electrophotographic (EP) printer uses halftoning technique. Image halftoning prints the image as matrix of dots which are halftone patterns those are hardly perceived by human eyes. So scanned images obtained from such hard printed copies are normally affected by screen like artifacts and moiré patterns. Scanned color Image improvement using Image descreening technique will be used to descreen color scanned images so as to remove screening patterns and Moiré effects. Technique applied on grayscale images produces clean smooth regions and sharp edges from scanned halftone images. The main purpose of this paper is to study and review different methods used for scanned halftone image descreening for color and grayscale images.
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