| 摘要 |
FIELD: information technologies.SUBSTANCE: device of image reading comprises an image sensor, including a part of light emission, a part of photoelectric conversion, in which many photoelectric converters are built into a line, and a part of charge transfer, which sends changes stored in the part of photoelectric conversion; the first memory, which saves, for definition loss taking place in the part of charge transfer, data of the reference value of definition loss, corresponding to each of components of light colour from the part of light emission and to each of photoelectric converters; a module of image processing configured for image data entered with an image sensor, production of a correction value for brightness value on the basis of the difference between values of brightness of the first component of colour and the second component of colour and data of the reference value of definition loss, saved in the first memory, and correction of image data brightness value entered with the image sensor on the basis of the correction value.EFFECT: invention provides for correction of image definition loss without device complication.11 cl, 9 dwg |
