An image processing apparatus includes an acquiring unit, an identifying unit, and a correcting unit. The acquiring unit acquires input data including shape data on a concave-convex area having a convex part and a concave part and image data of an image formed on the concave-convex area. The identifying unit identifies an uneven area which is within a bottom surface of the concave part and is continuous with a wall surface connecting the bottom surface and a convex surface of the convex part. The correcting unit corrects the image data so that the brightness of a first image area in the uneven area stacked with multiple dots and the brightness of a second image area continuous with the first image area become about the same.