Patent ID: 9202151
Filing Date: 2015-12-01
Classification: G06K,H04N

Abstract:
1. A printing apparatus which performs printing on a printing medium, comprising: a dot data generating section which generates dot data which indicates a dot formation state for each printing pixel in a printing image which is to be formed on the printing medium by performing a half-toning process with regard to image data which represents gradation values of each pixel which configures an original image; and a printing image generating section which generates the printing image by forming dots at each of the printing pixels according to the dot data, wherein the dot data generating section generates the dot data by using a dither mask where thresholds are set for the printing pixels and comparing the gradation values of the pixels which configure the original image and the thresholds for the printing pixels which are set in the dither mask, with the thresholds equal to a predetermined value or less being assigned in the dither mask such that the thresholds equal to the predetermined value or less are regularly arranged in the dither mask, and the thresholds exceeding the predetermined value being assigned in the dither mask such that the degree of regularity of the dots is reduced as the gradation values increase in a case where the gradation values which are represented by the image data exceed the predetermined value.