An image processing apparatus is an image processing apparatus that performs image processing on first image information of a target first image. The image processing apparatus has a controller and a first storage device which stores second image information of a second image. The controller reads the second image information stored in the first storage device, changes a resolution of the read second image information to a first resolution which is the same as a resolution of the first image information, and combines the first image information and the second image information based on the first image information and the second image information of which resolution is changed to the first resolution.

An image processing apparatus is an image processing apparatus that performs image processing on first image information of a target first image. The image processing apparatus has a controller and a first storage device which stores second image information of a second image. The controller reads the second image information stored in the first storage device, changes a resolution of the read second image information to a first resolution which is the same as a resolution of the first image information, and combines the first image information and the second image information based on the first image information and the second image information of which resolution is changed to the first resolution.

Some embodiments of the present disclosure provide a Contact Image Sensor (CIS), including a light source, a lens, a light-sensing portion receiving light converged by the lens, a sensor substrate carrying photosensitive Integrated Circuits (IC) arranged linearly, a frame accommodating the lens and the sensor substrate, and a light-transmitting plate provided on an upper part of the frame and configured to carry an original pattern. The CIS further includes a linear magnifying lens, provided between the light-transmitting plate and the lens, the linear magnifying lens having a characteristic of linearly magnifying an object in a single direction. The CIS involved in some embodiments of the present disclosure is capable of enhancing resolution in a single direction.

Embodiments of the present disclosure provide a method, apparatus, and computer readable storage medium for processing an image. The method described herein includes determining a to-be-processed first region and a to-be-processed second region in an input image, the first region is at least partially filled with a first color, the second region is at least partially filled with a second color, and the first region and the second region are adjacent regions sharing a common boundary region. The method further includes shrinking the first region and the second region, to enable neither of the shrunken first region and the shrunken second region to include the boundary region. The method further comprises expanding the shrunken first region and the shrunken second region, to enable the boundary region to be filled with at least one color of the first color or the second color.

An image processing apparatus includes: a code detector configured to detect a code included in image data, and a number-of-pixels converting unit configured to increase the number of pixels of the image data by converting the number of pixels of the image data by a factor of N, wherein, when N is a non-integer, the number-of-pixels converting unit converts the number of pixels in a first region including the code in the image data by an integer factor and converts the number of pixels in a second region different from the first region in the image data by a factor of N.

A duplex printing method includes, determining an amount of shrinkage of a media sheet onto which a front side image has been printed; scaling an image to be printed on a back side of the sheet with a scaling function that depends upon the determined shrinkage; and printing the scaled image on the back side of the sheet. The step of determining includes predicting a shrinkage of a media sheet on the basis of process parameters, and on the basis of a model that is defined by a set of model parameters and that describes a dependence of the shrinkage on the process parameters, the process parameters including at least an amount of marking material to be applied to the front side of the sheet; measuring an actual shrinkage of the sheet; and adjusting the model parameters based on a comparison between the predicted shrinkage and the measured shrinkage to improve a prediction of a shrinkage for a subsequent sheet.

A technique includes acquiring data representing a first image produced by electronically scanning a page against a background. The first image contains a non-uniform background content due at least in part to a variation introduced by the background being non-uniform. The technique includes extracting an image of the page from the first image, wherein the extraction includes characterizing the background content of the first image; identifying candidate pixels associated with the page based at least in part on the characterized background content; and based at least in part on the identified candidate pixels and a model for a boundary of the page, determining the boundary of the page.

A method of controlling an image forming apparatus having an image reading unit capable of conveying and reading a plurality of documents of different sizes includes determining whether an automatic magnification function is set in a case where an instruction to read a plurality of documents of different sizes is given, and performing control such that, in a case where the determining determines that the automatic magnification function is not set, a first document reading mode in which the plurality of documents is conveyed at a constant conveyance speed and is read is set to the image reading unit, and, in a case where the determining determines that the automatic magnification function is set, a second document reading mode in which the plurality of documents is conveyed at a different conveyance speed for each document and is read is set to the image reading unit.

An image processing apparatus obtains a first image of an object based on image capturing by an image capturing apparatus, obtains a parameter concerning a resolution of the first image, and generates a second image of the object having a resolution higher than the resolution of the first image in response to input of input data including the obtained first image and the obtained parameter.

An image forming apparatus includes an exposure head including light emitting elements arranged in an intersecting direction intersecting with a rotation direction of a photosensitive member to form an image at a first resolution corresponding the light emitting elements in the intersecting direction; a data generating unit configured to generate pixel data corresponding to a second resolution higher than the first resolution associating with positions of the pixel data; a correction unit configured to correct associations between the positions and the pixel data to adjust a position of an image in the intersecting direction; a conversion unit configured to convert the pixel data corresponding to the second resolution to pixel data corresponding to the first resolution; and a drive unit configured to drive the light emitting elements based on the pixel data corresponding to the first resolution.