Liquid discharge apparatus, liquid discharge method, and storage medium

A liquid discharge method comprising:

• moving at least one of a recording medium and a liquid discharge head to perform scanning;
• acquiring image data;
• creating dot data from the image data;
• selecting one of a first mask pattern for discharging no liquid from the liquid discharge head based on the dot data, a second mask pattern for discharging the liquid without changing a discharge size of the liquid from the liquid discharge head, and a third mask pattern for discharging the liquid with changing the discharge size of the liquid from the liquid discharge head;
• determining the discharge size of the liquid to be discharged from the liquid discharge head based on the dot data and the one of the first mask pattern, the second mask pattern, and the third mask pattern selected by the selecting;
• and
• calculating a logical product of input droplet size recited in the dot data and any one of the plurality of mask patterns to change a size of dot data to be output.

A non-transitory storage medium storing computer-readable program code for causing a liquid discharge apparatus to execute:

• moving at least one of a recording medium and a liquid discharge head to perform scanning;
• acquiring image data;
• creating dot data from the image data;
• selecting one of a first mask pattern for discharging no liquid from the liquid discharge head based on the dot data, a second mask pattern for discharging the liquid without changing a discharge size of the liquid from the liquid discharge head, and a third mask pattern for discharging the liquid with changing the discharge size of the liquid from the liquid discharge head;
• determining the discharge size of the liquid to be discharged from the liquid discharge head based on the dot data and the one of the first mask pattern, the second mask pattern, and the third mask pattern selected by the selecting;
• and
• calculating a logical product of input droplet size recited in the dot data and any one of the plurality of mask patterns to change a size of dot data to be output.