Device and method for determining color of output image in image forming apparatus

摘要

In a case where image processing, in which a ratio of the number of color pixels greatly fluctuates, is executed after performing charging determination, an output result might not match a result of the charging determination. There is provided a device for determining a color of an output image in a case where an image to be printed is printed with an additional image attached thereto, the device including: a unit configured to divide the image to be printed into blocks of a predetermined size; a unit configured to calculate an average value of color components of pixels included in the block; a correction value calculation unit configured to correct a calculated average value using a correction value corresponding to the additional image; and a color/monochrome determination processing unit configured to determine, based on the corrected average value, whether the block is a color block or a monochrome block.

主权项

1. A device comprising:
an obtaining unit configured to obtain a color value of each of a plurality of pixels included in an input image, a unit configured to determine whether an additional image is combined with the input image; a correction unit configured to correct the each color value of the plurality of pixels by using a correction value corresponding to the additional image in a case where the additional image is determined to be combined with the input image; and a class determination unit configured to determine a class of color amount for calculating a printing fee of the input image based on the obtained each color value of the plurality of pixels in a case where the additional image is not determined to be combined with the input image, and determine a class of color amount for calculating a printing fee of the input image based on the corrected color value in a case where the additional image is determined to be combined with the input image.