摘要:
The reading apparatus is provided with: an optical image forming unit that forms an optical image on a recording medium by irradiating, with light, the recording medium on which an image is formed and which is transported in a slow scan direction; a reading unit that reads a position in a fast scan direction of the image formed on the recording medium transported in the slow scan direction and a position in a fast scan direction of the optical image, by using a minification optical system; and a registration correction unit that corrects a registration error in the fast scan direction of the image read by the reading unit, by using the position in the fast scan direction of the optical image read by the reading unit.
摘要:
An image processing apparatus includes an input section and a binarizing section. The input section inputs multilevel image data. The binarizing section binarizes multilevel image data to generate output image data representing halftone dots each having a hollow-structure. The binarizing section enlarges the halftone dots in a predetermined direction preferentially in accordance with the input multilevel image data.
摘要:
An image processing apparatus includes: a composite unit that generates a composite parameter used for implementing a time varying variation correction processing for suppressing color variations associated with lapse of time and a spatial variation correction processing for suppressing color variations in accordance with a position in an image, on the basis of a time varying correction parameter used for the time varying variation correction processing and a spatial correction parameter used for the spatial variation correction processing; and an image correction unit that subjects input image data to the time varying variation correction processing and the spatial variation correction processing through use of the composite parameter generated by the composite unit.
摘要:
An image processor for suppressing color variations includes a correction unit and a gradation adjustment unit. The correction unit converts input image data to have higher gray level than that of the input image data, and performs correction processing on the converted image data. The gradation adjustment unit decreases the gray level of the image data on which the correction processing has been performed.
摘要:
An image processing method generates a halftone-dot image by forming a halftone dot, which is represented by a set of one or plural output dots and corresponds to an intensity of an input image signal, while making a part of the dots constituting the halftone dot to be an actual non-output dot so as to reduce an amount of a coloring material of the halftone-dot portion. When the intensity of the image signal exceeds a predetermined value and is in a predetermined range, while maintaining contour dots, which are output dots contribute to formation of a contour of the halftone dot, to be the output dot, the image processing method makes a part of dots inside the contour dots to be the actual non-output dot.
摘要:
An image processing apparatus includes: a composite unit that generates a composite parameter used for implementing a time varying variation correction processing for suppressing color variations associated with lapse of time and a spatial variation correction processing for suppressing color variations in accordance with a position in an image, on the basis of a time varying correction parameter used for the time varying variation correction processing and a spatial correction parameter used for the spatial variation correction processing; and an image correction unit that subjects input image data to the time varying variation correction processing and the spatial variation correction processing through use of the composite parameter generated by the composite unit.
摘要:
The reading apparatus is provided with: an optical image forming unit that forms an optical image on a recording medium by irradiating, with light, the recording medium on which an image is formed and which is transported in a slow scan direction; a reading unit that reads a position in a fast scan direction of the image formed on the recording medium transported in the slow scan direction and a position in a fast scan direction of the optical image, by using a minification optical system; and a registration correction unit that corrects a registration error in the fast scan direction of the image read by the reading unit, by using the position in the fast scan direction of the optical image read by the reading unit.
摘要:
A thickness variation detector of a photoconductor includes: a current detection unit that detects a value of current being used for charging a surface of the photoconductor in a state in which a charging unit is in contact with a surface of the photoconductor; and a thickness variation detection unit that detects a thickness variation along a rotation direction of the photoconductor based on the value of current.
摘要:
An image processing apparatus includes an input section and a binarizing section. The input section inputs multilevel image data. The binarizing section binarizes multilevel image data to generate output image data representing halftone dots each having a hollow-structure. The binarizing section enlarges the halftone dots in a predetermined direction preferentially in accordance with the input multilevel image data.
摘要:
An image processing method generates a halftone image by forming a halftone dot represented by a set of one or plural output dots corresponding to an intensity of an input image signal while making a part of the dots constituting the halftone dot to be an actual non-output dot so as to reduce an amount of a coloring material of a halftone-dot portion. The image processing method includes holding in a predetermined storage medium halftone-dot profile data for forming the halftone dot corresponding to the intensity of the image signal and gap-size profile data representing a size of a set of the non-output dot; and generating the halftone dot comprising a gap having a size based on the gap-size profile data, a size of the halftone dot being based on the halftone-dot profile data.