Patent ID: 9036204
Filing Date: 2015-05-19
Classification: G06F,G09G

Abstract:
1. An image processing device comprising: a processing device that performs a color reduction processing of converting data of a-levels of gray indicative of an image to be displayed in a display area including a plurality of pixels arranged along a first direction and a second direction into data of b-levels of gray (b<a) and, upon receiving an input of data for reducing a number of the plurality of pixels with a first gray level in the display area to 50%, generates a result in which the arrangement of the pixels with the first gray level has blue noise characteristics in the display area, and a maximum value of a rate of occurrence of a specific pattern in the display area is reduced so as to be less than 7.0%, the specific pattern being a pixel pattern including a first pixel having a gray level value of the first gray level and four pixels adjoining the first pixel in the first direction and the second direction having gray level values other than the first gray level, and differences between the gray level values of the four pixels and the first gray level have a same sign.