Patent ID: 7796302
Filing Date: 2010-09-14
Classification: H04N

Abstract:
1. An image processing apparatus comprising: a receiving section that receives image information; an edge detection section that detects an edge area from the image information received by the receiving section for each pixel by density difference determination, separates the image information into the edge area and a non-edge area, and adds edge determination tags to at least one of the edge area and the non-edge area; and a screen processing section that performs a screen process, which is based on area coverage modulation, for the image information on a basis of the detection result by the edge detection section, wherein: the screen processing section performs a screen process for the edge area detected by the edge detection section with (i) a screen angle, which is equal to that of a screen process performed for the non-edge area other than the edge area, and (ii) a number of lines per inch, which is an integer multiple of that of the screen process performed for the non-edge area.