Patent ID: 9724931
Date: 2017-08-08
CPC Classifications: B41J,H04N

Claim:
1. An image processing device comprising a hardware processor configured to cause the image processing device to perform: acquiring target image data; generating print data by using the target image data; supplying the print data to a print execution unit for causing the print execution unit to print, the print execution unit having a plurality of nozzles, each of which ejects one of a plurality of color inks, the plurality of color inks including an achromatic color ink and three or more types of chromatic color inks, colors of which are different from each other; wherein a target image represented by the target image data includes a chromatic-color representation area and an achromatic-color representation area, the chromatic-color representation area representing the chromatic color, and the achromatic-color representation area representing the achromatic color, wherein the generating print data comprises executing a correction process, the correction process being for correcting a plurality of pixel values in the target image data corresponding to the achromatic-color representation area, wherein the correction process includes a first correction process and a second correction process, wherein the first correction process comprises correcting a pixel value of a first target pixel in the target image data corresponding to a first partial area, which is included in the achromatic-color representation area and is adjacent to the chromatic-color representation area, such that the achromatic color ink which is to be ejected on a first print unit area in the first partial area corresponding to the first target pixel decreases to be zero, wherein at least one of the three or more types of chromatic color inks which is to be ejected on the first print unit area corresponding to the first target pixel increases, and wherein the first print unit area represents the achromatic color, wherein the second correction process comprises correcting a pixel value of a second target pixel in the target image data corresponding to a second partial area, which is included in the achromatic-color representation area and is adjacent to the first partial area and is remote from the chromatic-color representation area, such that the achromatic color ink which is to be ejected on a second print unit area in the second partial area corresponding to the second target pixel decreases to a specific value more than zero, wherein at least one of the three or more types of chromatic color inks which is to be ejected on the print unit area corresponding to the second target pixel increases, and wherein the second print unit area represents the achromatic color.