Abstract:
An image reading apparatus includes a conversion unit and a setting unit. The conversion unit converts first image information into second image information by using a predetermined color conversion factor group. The setting unit (i) obtains the second image information of a color sample of a plurality of colors converted by the conversion unit from the first image information, the first image information generated by reading the color sample, the color sample used to correct a color level difference according to a light source, (ii) selects a color conversion factor group corresponding to the obtained second image information of the color sample based on the correspondence relationship between a color conversion factor group and a color level of the second image information of the color sample, and (iii) sets the selected color conversion factor group instead of the predetermined color conversion factor group of the conversion unit.
Abstract:
An image reading apparatus includes a light source, a reading unit, a moving unit, a moving speed control unit, a turn-ON time control unit. The light source irradiates light onto a document. The reading unit receives light reflected from the document, converts the received light into electrical charges, and accumulates the electrical charges as an image signal. The moving unit relatively moves the light source and the document. The moving speed control unit controls a moving speed of the moving unit in accordance with a reading mode of the image reading apparatus to control a reading speed in the reading unit. The turn-ON time control unit controls the light source to be turned off in a given period based on the reading mode when the reading unit accumulates the electric charges so as to prevent the electrical charges accumulated in the reading unit from reaching a saturation amount.
Abstract:
An image reading apparatus includes: a light source that generates light by synthesizing light from different illuminants and irradiates an irradiated object with the generated light; a reading unit that reads light irradiated by the light source and reflected by the irradiated object and generates image information in a first color space on the irradiated object; a color conversion unit that converts the image information in the first color space into image information in a second color space with a color conversion factor group; and a color conversion factor group setting unit that acquires from the reading unit the image information generated by using, as the irradiated object, a color sample formed in a color of light emitted by one of the illuminants, determines the color conversion factor group to be used, according to the acquired image information, and sets the color conversion factor group to the color conversion unit.
Abstract:
An image processing device includes, a pixel information output section that reads an image along a predetermined direction and outputs saturation information and lightness information, a dust pixel extraction section that extracts dust pixels that are candidates for pixels expressing dust existing in the predetermined direction, a lightness-changed pixel extraction section that extracts lightness-changed pixels, a correction object pixel extraction section that, from among the dust pixels extracted by the dust pixel extraction section, extracts, as pixels that are objects of correction, dust pixels that have not been extracted as lightness-changed pixels and dust pixels in whose vicinities lightness-changed pixels do not exist, a correction section that corrects both of the information of the pixels, using both of the information of neighboring pixels of the pixels, and an image information output section that outputs image information that includes information expressing pixels corrected by the correction section.
Abstract:
An image reading device includes a document tray on which documents having different sizes are stacked; a document transport mechanism that sequentially feeds and transports the documents one-by-one; an image data generator extending in a width direction that intersects a document moving direction and having an image reading sensor that repeatedly reads, in the width direction, an image from each document, the image data generator generating image data expressing an image within a target reading region of a currently fed document by permitting the image reading sensor to perform a reading process to a region protruding from the target reading region so as to cause the image reading sensor to perform the reading process over a reading region that does not cause unread parts within the target reading region; an image memory storing the image data; and an image extractor extracting the image data from the stored image data.
Abstract:
The game control device may include a storage unit, a first match-up executing unit, a character ability updating unit, and a second match-up executing unit. The storage unit stores an ability value of each player character. The first match-up executing unit executes a first match-up between two player characters in response to input of a communication terminal, and to determine a result of the first match-up based on the stored ability value of each player character. The character ability updating unit updates, based on the result of the first match-up, the ability values of the two player characters, and causes the storage unit to store the updated ability values. The second match-up executing unit executes a second match-up between player characters independently from the first match-up without input of the communication terminal, and determines a result of the second match-up based on the stored ability value of each player character.
Abstract:
An image scanning apparatus includes: an image scanning unit that includes plural light emitting elements and a light receiving portion receiving light emitted from the light emitting elements and reflected on a document and scans an image on the document; a light quantity information acquiring unit that acquires light quantity information on the quantity of light received by the light receiving portion while causing the light emitting elements to irradiate a reference member with light; a correction unit that corrects the scanned image, based on the light quantity information; and an abnormality detecting unit that detects abnormality of the light emitting elements. If the abnormality detecting unit detects the abnormality, the light quantity information acquiring unit acquires new light quantity information while causing the light emitting elements to irradiate the reference member with light and the correction unit corrects the scanned image, based on the new light quantity information.
Abstract:
An image reading apparatus includes: an image reading unit including a light source and a light receiving unit, and being capable of reading an image of a document sheet with predetermined plural reading conditions; a first light quantity information acquiring unit acquiring first light quantity information on a quantity of light emitted from the light source to a first white reference plate and received by the light receiving unit, for each reading condition; a second light quantity information acquiring unit acquiring second light quantity information on a quantity of light emitted from the light source to a second white reference plate and received by the light receiving unit, for fewer reading conditions than all the plural reading conditions; and a third light quantity information acquiring unit acquiring the second light quantity information for reading conditions other than the fewer reading conditions by using the acquired first light quantity information.
Abstract:
An image reading apparatus includes: a light source that generates light by synthesizing light from different illuminants, and irradiates an irradiated object with the light; a reading unit that reads light irradiated by the light source and reflected by the irradiated object and generates image information on the irradiated object; a correction amount setting unit that acquires from the reading unit the image information generated by using, as the irradiated object, a color sample formed in a color of light emitted by any one of the illuminants generating the light of the light source, and that sets, according to the acquired image information, a correction amount to correct the image information on the irradiated object generated by the reading unit; and a correction unit that corrects the image information on the irradiated object generated by the reading unit, by using the correction amount set by the correction amount setting unit.