| 摘要 |
To provide a technology that can contribute to realization of both of reproduction of a fine line in low density and reduction of noise at an outline portion of a patch area of a uniform density, which could not be consistent in the related art. A reducing unit for executing a reducing process for reducing the resolution of an image in image data to be processed; a histogram generating unit for generating a histogram of a color space signal in a pixel area of M rowsxN columns (here M, N are one or larger integers) in the image on which the reducing process is applied by the reducing unit; and a binarizing unit for executing a binarizing process on a pixel in the image on which the reducing process is applied by the reducing unit on the basis of the histogram generated in the histogram generating unit are provided. |
