Abstract: An image reading apparatus that reads images of document images having different gloss levels with a reproducibility suitable for uses includes a data processor to irradiate a document image with light from a regular reflection light source and a diffuse reflection light source, and to generate image data based on a regular reflection output value and a diffuse reflection output value obtained from a photoelectric converter.

Abstract: In the present invention, to provide an image reading apparatus capable to read images of document images having different gloss levels with a reproducibility suitable for uses, a data processing means is provided to irradiate a document image with light from a regular reflection light source and a diffuse reflection light source, and to generate image data based on a regular reflection output value and a diffuse reflection output value obtained from a photoelectric converting means, this data processing means obtaining gloss pixel data by comparing, based on the regular reflection correction value for shading correction of a regular reflection output value, a diffuse correction output value for shading correction of the diffuse reflection output value, and a determining threshold for determining whether or not the regular reflection output value is a gloss pixel, the corrected output value corrected by the regular reflection correction value with the determining threshold, and obtaining a non-gloss pixel dat

Abstract: To provide an image reading apparatus capable of reading original document images while performing control for blinking a line light source in the apparatus without causing a change in the hue of read data of the documents, the image reading apparatus is to apply light to an original document, read the reflected light, and thereby acquire image data of the document, and has a line light source for applying light to an original document, driving means for moving the document or a carriage installed with the line light source, a line sensor for receiving the reflected light of the document moving in the sub-scanning direction relatively to the carriage to convert into image data, and control means for performing control for blinking the line light source, control for driving the driving means, and control for capturing the image data from the line sensor, where the control means adjusts a light quantity of the line light source by controlling the number of times of lighting signals with a predetermined lighting

Abstract: An image reading apparatus includes a stage for placing a specimen. The stage moves in first directions between a setting position where the specimen is placed and removed and a reading position for reading the specimen. The image reading apparatus also includes a light source for irradiating light onto the specimen on the stage, a photoelectric conversion device having a line shape for photo-electrically converting the light reflected from the specimen, an optical device for guiding the light from the specimen to the photoelectric conversion device, a carriage mounting the optical device, and an apparatus frame for movably supporting the stage and the carriage. The carriage moves along the stage in second directions substantially same as the first direction.

Abstract: An image reading apparatus includes a stage for placing a specimen. The stage moves in first directions between a setting position where the specimen is placed and removed and a reading position for reading the specimen. The image reading apparatus also includes a light source for irradiating light onto the specimen on the stage, a photoelectric conversion device having a line shape for photo-electrically converting the light reflected from the specimen, an optical device for guiding the light from the specimen to the photoelectric conversion device, a carriage mounting the optical device, and an apparatus frame for movably supporting the stage and the carriage. The carriage moves along the stage in second directions substantially same as the first direction.