Patent ID: 9704074
Date: 2017-07-11
CPC Classifications: G06K

Claim:
1. An image processing apparatus for processing data used for printing an image on a print medium with use of multiple inks, the image processing apparatus comprising: a processor and a memory storing code of a computer program that, when executed, causes the processor to perform the following steps: acquiring first multi-valued data corresponding to a first colored ink to be precedently applied to a same area of the print medium among the multiple inks, and second multi-valued data corresponding to a second colored ink to be applied to the print medium succeedingly to the first colored ink among the multiple inks; quantizing the first multi-valued data to generate first quantized data representing printing or non-printing of a dot of the first colored ink, and quantizing the second multi-valued data to generate second quantized data representing printing or non-printing of a dot of the second colored ink, wherein, in the quantizing step, (i) quantizing of the first multi-valued data is based on a threshold value matrix configured by arraying multiple threshold values and not based on the second multi-valued data, and (ii) quantizing of the second multi-valued data is based on both of a threshold value matrix configured by arraying multiple threshold values and the first multi-valued data, and wherein, in the quantizing step, quantizing of the first multi-valued data and the second multi-valued data is performed so as to, on the same area of the print medium, make dispersibility of dots to be printed based on the first quantized data higher than dispersibility of dots to be printed based on the second quantized data; and printing the image on the print medium based on the first quantized data and the second quantized data.