Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Minolta Company, Ltd.

Tomohiro Yamaguchi

Masaaki Saka

Yoshihiko Hirota

Kazuhiro Ishiguro

Takayuki Nabeshima

Hideyuki Toriyama

Tomohiro Ozawa

Tomoo Yamanaka

Takuto Matsumoto

Shota Fujioka

An image forming apparatus includes: a microphone that detects a voice; an executing device that executes a job; and a hardware processor that controls switching of a position of voice detection by the microphone, depending on the job.

Image forming apparatus, method of controlling image forming apparatus, and recording medium

An image forming apparatus to be used together with equipment to be used by a user with both hands, the image forming apparatus includes: an acceptor that does not accept, by voice, an instruction for processing to be performed by the image forming apparatus before the user holds the equipment but accepts, by the voice, the instruction while the equipment is being used with both of the hands.

Image forming apparatus, instruction acceptance method, and computer readable program

A display device, comprises: a display part that displays a first display area and a second display area across a boundary and displays operation screens in the respective first and second display areas; a manipulation part that detects a user operation performed to a display screen of the display part; and a hardware processor that: determines whether or not a first operation and a second operation have continuity when the second operation is detected in the second display area after the first operation is detected in the first display area; and updates the operation screen in the first display area in response to the second operation when the first operation and the second operation are determined to have continuity, and updates the operation screen in the second display area in response to the second operation when the first operation and the second operation are determined not to have continuity.

Display device, image processing device and non-transitory recording medium determining continuity of operation two or more display areas

An image reading apparatus includes: a light source; a reference sheet that reflects light emitted from the light source; a light-receiving lens that converges the reflected light; a reading sensor that reads the light converged by the light-receiving lens; and a hardware processor that: based on first white data obtained when the reading sensor reads the reference sheet for the first time, determines whether the reference sheet or the reading sensor has dust; in response to determining that the reference sheet or the reading sensor has dust, produces ideal initial white reference data by complementing the first white data with second white data obtained when the reading sensor reads the reference sheet for the second and subsequent times; and with the ideal initial white reference data, complements third white data obtained when the reading sensor reads the reference sheet right before reading an image of a job.

Image reading apparatus, image forming apparatus, and reading control method

An image reading device includes: a scanner having characteristics of causing a distortion of gradation including a sine wave being formed by its obtained image data and being represented as an array of gradation values arranged in a main scanning direction; a reference member to be scanned; a hardware processor that: obtains a gradation value at each main scanning position from shading reference data obtained from the reference member; determines a target range in the shading reference data based on the gradation value at the each main scanning position; generates a substitute part of data to be replaced for an original part of data in the target range; and replaces the original part of data with the substitute part of data while the gradation values at the start and end phase of the substitute part of data are adjusted to the same of the target range.

Image reading device, image forming apparatus, method of replacing a part of shading reference data, and recording medium

An image reading device includes: a scanner having characteristics of causing a distorted sine wave being formed by its obtained image data and being represented as an array of shade values arranged in a main scanning direction; a reference member to be scanned; a hardware processor that: obtains a shade value at each main scanning coordinate from shading reference data obtained from the reference member; detects the start and end position of a distorted waveform range in the shading reference data; defines the start and end position of a target range as the main scanning coordinates of two peaks, the two peaks being in a distorted sine wave formed by the shading reference data, the two peaks being within a predetermined reference distance to the right and left of the start and end position; and replaces a part of data in the target range with a substitute part of data.

An image processing apparatus includes a first screen processing unit that performs first screen processing using a first screen angle on a line region of a character, a second screen processing unit that performs second screen processing using a second screen angle on at least an outline region out of the line region, the second screen angle being different from the first screen angle, and a composition unit that performs composition of a processing result of the first screen processing and a processing result of the second screen processing, on at least the outline region out of the line region.

Image processing apparatus, image processing method and computer-readable storage medium with improved character display

An image processing apparatus includes a display; a document image accepting unit for accepting input of a document image obtained by a scanner; a display control unit for causing a preview image of the document image accepted by the document image accepting unit to be displayed on the display while being moved in a prescribed direction in a sequential manner; an operation accepting unit for accepting an operation of image editing for document images, which are series of document images accepted by the document image accepting unit, including the document image corresponding to the preview image moving on the display; and an editing unit for performing the image editing accepted by the operation accepting unit for the document images.

Image processing apparatus, method of controlling image processing apparatus, and non-transitory recording medium

A halftone image generation device is provided that, by partially selecting and blending a first halftone image obtained by halftone processing a specific image using a first method and a second halftone image obtained by halftone processing the specific image using a second method different from the first method, generates a third halftone image of the specific image. The device includes a detector detecting, from the first halftone image, a dot pixel in which a dot is disposed, and a blender blending the first halftone image and the second halftone image by, when a dot is not disposed in any of neighboring pixels in the first halftone image that neighbor the dot pixel, employing, as binary values of isolated-point related pixels in the third halftone image that are in a same position as the dot pixel and the neighboring pixels, binary values of the dot pixel and the neighboring pixels.

Halftone image generation device that generates a blended halftone image of an image by partially selecting and blending a first halftone image obtained by halftone processing the specific image using a first method and a second halftone image obtained by halftone processing the specific image using a second method, associated halftone image generation method, and computer-readable storage medium for computer program

In the image processing apparatus, image data is divided into large blocks of a prescribed size and the large blocks are subdivided into small blocks by the dividing unit. The number of isolated points in each large block is then calculated by the large block isolated point calculation unit, and the number of isolated points in each small block is then calculated by the small block isolated point calculation units. It is then determined by the halftone-dot region determination unit whether or not the large block is a halftone-dot region. This determination considers both the number of isolated points in the large block and the number of isolated points in each small block.

Image processing apparatus and image processing method

MFP matches low-resolution binary image data received by facsimile with a dot pattern showing a jaggy. If there is any matching region, the image data is converted into multivalued image data by performing jaggy correction in which the tone of a target dot in the region is substituted with a grayscale. MFP also generates a region identification attribute code based on the result of matching and the tone of the input image data. MFP enhances the respective resolutions of the image data after jaggy correction and the region identification attribute code. MFP then binarizes the image data having the enhanced resolution once again by a binarization method according to the region identification attribute code having the enhanced resolution.

Image forming apparatus capable of enhancing resolution of image data in high quality

An image processing apparatus includes a first generation portion that generates a first low-gradation image by performing a first process on an input image to reduce the number of gradations of the input image, a second generation portion that generates a second low-gradation image by performing a second process on the input image to reduce the number of gradations of the input image, a density detector that detects a density of the input image, a determination portion that determines, based on the density, a ratio at which the first low-gradation image and the second low-gradation image are blended together, and a mixing portion that blends the first low-gradation image and the second low-gradation image in accordance with the ratio.

Image processing apparatus and method for reducing gradation level of image

An image processing apparatus includes a region determination unit detecting attributes of image data generated by a reading unit; an image modification unit generating attribute data based on the results of the determination performed by the region determination unit; an image conversion processing circuit performing resolution conversion processing on the image data of a pixel of interest; and an attribute conversion processing circuit performing resolution conversion processing on the attribute data of the pixel of interest. The attribute resolution converter employs attribute data identical to the attribute data before being subjected to the attribute resolution conversion processing as the attribute data for the pixel of interest following the attribute resolution conversion processing, and employs the attribute data after being subjected to the attribute resolution conversion processing as the attribute data for neighboring pixels to the right and left of the pixel of interest following the attribute resolution conversion processing.

An image forming apparatus is provided with a scanner that reads a document and generates image data thereof, an information detecting portion that detects, from the image data generated by the scanner, attribute information about areas divided in accordance with a type of an image, a resolution converting portion that modifies the image data for each of the areas by performing a resolution converting process on the image in accordance with instructions that are provided by a user based on the attribute information detected by the information detecting portion, an image replacement processing portion, and a printer that prints an image based on the image data thus modified on a recording medium.

Image forming apparatus, image forming method, and computer-readable storage medium for image forming program

It is intended to provide an image processing apparatus capable of precisely discriminating a halftone dot region and a figure such as a character arranged on the halftone dot region and applying appropriate image processing to the halftone dot region and the character separately. An isolated point discriminating section detects presence of an isolated point and detects a size of the detected isolated point. A temporary halftone dot region discriminating sectiondetermines a temporary halftone dot region by counting the number of isolated point signals detected. Thereby, a region where isolated points concentrate is regarded as a temporary halftone dot region. An isolated point magnifying sectionmagnifies the detected isolated point signal to its original size so as to determine a magnified isolated point region. A halftone dot region restricting sectiontakes an AND computation results of the temporary halftone dot region and the magnified isolated point region. Thereby, in the temporary halftone dot region, only a place where an isolated point actually exists is regarded as a halftone dot processing region. Accordingly, in case a character or the like exists on a halftone dot region, the character is not included in a halftone dot processing region.

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Shinshiro, Japan

Tomohiro Yamaguchi