Patent ID: 8824007

Claim:
An image processing apparatus comprising: a color conversion unit that converts inputted image signals to image signals of a color space of an image forming apparatus; a division unit that divides image signals of a predetermined hue area from among the image signals obtained by conversion by the color conversion unit; and a correction unit that performs correction on the image signals such that a toner amount is increased by an increase amount corresponding to a smoothness of a printing medium for the image signals of the predetermined hue area divided by the division unit, wherein the predetermined hue area is a hue area in which, among multiple areas of different hues, a toner transfer failure tends to occur at concave portions that exist on a printing surface of the printing medium, the predetermined hue area is a hue area to be formed by superimposing two toners of different colors, and when equivalent amounts of each toner of the two colors are compared, a relationship between a lightness L*P of a toner P that is applied on a side close to the printing medium and a lightness L*Q of a toner Q applied on a side far from the printing medium is that: L*P>L*Q or L*P<L*Q and L*Q/L*P< 1.3.