Patent ID: 7751086
Filing Date: 2010-07-06
Classification: H04N

Abstract:
1. A printer comprising: a smoothing process unit configured to perform a smoothing process to RGB image signals; a first color separation unit configured to separate colors of the RGB signals to which the smoothing process is performed and to obtain CMYK image signals; an edge enhancement process unit configured to perform an edge enhancement process to the obtained CMYK image signals; a background color removal unit configured to perform background color removal to the edge-enhanced CMYK image signals; a second color separation unit configured to separate colors of the background-color-removed CMYK image signals and to obtain CcMmYK signals, c being lighter than C and m being lighter than M; a gamma correction unit configured to perform gamma correction to the obtained CcMmYK signals; and a halftone process unit configured to perform a pseudo-halftone process to the gamma-corrected CcMmYK signals.