| 摘要 |
PROBLEM TO BE SOLVED: To provide a color image processor that can obtain an image with high resolution without causing void around characters on a color background in the case of a color output and improve the resolution of the image in the case of a monochromatic output more than that of the resolution of the color output through the setting of a limiter. SOLUTION: An edge emphasis section 102 applies edge emphasis processing to a luminance signal Y and each of color difference signals I, Q. A limiter processing section 103 limits the luminance signal Y depending on a background gray level after the edge emphasis processing only when a signal from a switch 105 is active. In the case of receiving no signal from the switch 105, the limiter processing section 103 does not conduct the limiter processing. Then a signal conversion section B 104 converts the luminance signal Y and the color difference signals I, Q into R', G', B' signals. |
