1. An image processing apparatus comprising: a determination unit configured to determine for each of a plurality of color plates whether trapping processing is performed at a position of a target pixel of an image divided to the plurality of color plates; and a trap unit configured to perform the trapping processing at the position of the target pixel for each of the plurality of color plates based on a determination result of the determination unit, wherein in a case where the determination unit determines that the trapping processing is performed on a predetermined color plate, the trap unit does not perform the trapping processing at the position of the target pixel for the color plate on which the trapping processing is performed according to the determination by the determination unit.