Printing apparatus, method for controlling printing apparatus, and storage medium

A method for controlling a printing apparatus, the printing apparatus including (1) a printhead that ejects a color ink and a reaction liquid for reacting with the color ink, (2) an application amount control unit, and (3) a color conversion unit that creates color ink application amount data representing a color ink application amount for each pixel by performing color conversion processing on image data inputted, the method comprising:

• controlling, by the application amount control unit, of a reaction liquid application amount by, in image data representing the reaction liquid application amount of each pixel, estimating a degree of bleeding and then, according to the estimated degree of bleeding, executing bolding processing near a border between a plurality of image regions having different densities of the color ink from each other, the plurality of image regions being a first region having a first density of the reaction liquid and a second region having a second density of the reaction liquid which is lower than the first density of the reaction liquid, the bolding processing being increasing the reaction liquid application amount assigned to the second region based on the reaction liquid application amount assigned to the first region;
• and
• by the color conversion unit, (1) creating first reaction liquid application amount data representing the reaction liquid application amount for each pixel based on the color ink application amount data and (2) sending the created first reaction liquid application amount data to the application amount control unit.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method for controlling a printing apparatus, the printing apparatus including (1) a printhead that ejects a color ink and a reaction liquid for reacting with the color ink, (2) an application amount control unit, and (3) a color conversion unit that creates color ink application amount data representing a color ink application amount for each pixel by performing color conversion processing on image data inputted, the method comprising:

• controlling, by the application amount control unit, of a reaction liquid application amount by, in image data representing the reaction liquid application amount of each pixel, estimating a degree of bleeding and then, according to the estimated degree of bleeding, executing bolding processing near a border between a plurality of image regions having different densities of the color ink from each other, the plurality of image regions being a first region having a first density of the reaction liquid and a second region having a second density of the reaction liquid which is lower than the first density of the reaction liquid, the bolding processing being increasing the reaction liquid application amount assigned to the second region based on the reaction liquid application amount assigned to the first region;
• and
• by the color conversion unit, (1) creating first reaction liquid application amount data representing the reaction liquid application amount for each pixel based on the color ink application amount data and (2) sending the created first reaction liquid application amount data to the application amount control unit.