Patent ID: 8417028
Filing Date: 2013-04-09
Classification: H04N

Abstract:
1. An apparatus for setting a parameter used at the time an image processing apparatus determines whether an image data read by an image reading apparatus is a colored image or a monochrome image, to the image processing apparatus, comprising: a unit configured to obtain a reading characteristic of the image reading apparatus; and a parameter setting unit configured to set the parameter corresponding to the obtained reading characteristic, wherein the image processing apparatus includes a color determination unit configured to determine whether each pixel of the image data is a chromatic color or an achromatic color, wherein the parameter is a threshold value used at the time the color determination unit determines whether the each pixel of the image data is the chromatic color or the achromatic color, wherein the reading characteristic is a difference in MTF between channels of the image reading apparatus, and wherein the MTF is an index indicating a difference between a maximum signal value and a minimum signal value obtained by reading a million lines having a specific space frequency being divided by a difference between a signal value obtained by reading a completely black sheet and a signal value obtained by reading a completely white sheet.