Patent ID: 8576452

Claim:
An image processing apparatus for generating print data to be used for an image forming apparatus for performing image formation by performing a plurality of print scans upon the same image area on a print medium, the image processing apparatus comprising: a dividing unit configured to divide image data corresponding to a color component into pieces of print scan image data for the plurality of print scans, by distributing a pixel value of each pixel of the image data corresponding to the color component to each of the plurality of print scans; a quantization unit configured to quantize the pieces of print scan image data; and a generation unit configured to generate pieces of print data for the plurality of print scans on the basis of the quantized pieces of print scan image data, and wherein the quantization unit quantizes a first piece of print image data and a second piece of print image data among the pieces of print scan image data of the same color component to prevent dots of the first piece of print image data and the second piece of print image data from overlapping each other in a case where a density represented by the pieces of print scan image data is a low density, wherein the quantization unit refers to a lookup table, wherein in the lookup table, an input value of the first piece of print image data and an input value of the second piece of print image data are input, and each output value is determined based on the input values, and wherein in a low density region, the lookup table outputs output values determined under the influence of each of the input values, and in a high density region, the lookup table outputs output values independent of the input values.