IMAGE READING DEVICE, IMAGE FORMING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING IMAGE READING PROGRAM

摘要

Provided is an image reading device including a light source that includes a unit irradiating an image with light beams of plural colors and adjusting light intensities of the respective light beams of the plural colors, a reading unit that reads the image irradiated with the light beams of the plural colors from the light source, and outputs image information, and an adjustment unit that adjusts, for a case where an image is read in color, the light intensities of the respective light beams of the plural colors so that values of pieces of image information corresponding to the respective colors fall within a range, and adjusts, for a case where an image is read in black and white, the light intensities of the respective light beams of the plural colors so that values of pieces of image information output from the reading unit fall within a range.

主权项

1. An image reading device comprising:
a light source that includes a unit irradiating an image with light beams of a plurality of colors determined in advance and adjusting light intensities of the respective light beams of the plurality of colors; a reading unit that reads the image irradiated with the light beams of the plurality of colors from the light source, and outputs the image as image information; and an adjustment unit that adjusts, for a case where an image is read in color, the light intensities of the respective light beams of the plurality of colors so that values of pieces of image information corresponding to the respective colors, which are output from the reading unit, fall within a first range determined in advance, and adjusts, for a case where an image is read in black and white, the light intensities of the respective light beams of the plurality of colors so that values of pieces of image information output from the reading unit fall within a second range determined in advance, based on the light intensities of the respective light beams of the plurality of colors which are adjusted when the image is read in color.