An image processing apparatus includes a controller for controlling a print execution unit. The print execution unit repeatedly performs ejection processing of ejecting a droplet of color material onto a printing medium. The controller is configured to perform: specifying an estimate value for a target partial image by using color gap information, the target partial image being selected among a plurality of partial images included in an N-th band image; determining whether the estimate value satisfies an estimate condition; determining an ejection execution direction with respect to an N-th ejection processing to be a first direction in response to determination that the estimate value satisfies the estimate condition; and determining the ejection execution direction with respect to the N-th ejection processing to be opposite to the ejection execution direction with respect to an (N−1)-th ejection processing in response to determination that the estimate value does not satisfy the estimate condition.