Canon Kabushiki Kaisha

Reiji Misawa

Tomotoshi Kanatsu

Hidetomo Sohma

Ryo Kosaka

Naoki Ito

Osamu Iinuma

Yoichi Kashibuchi

Takeshi Namikata

Junya Arakawa

Hiroshi Kaburagi

Tsutomu Sakaue

Shinji Sano

Mitsuru Uzawa

Manabu Takebayashi

Shinichi Kato

Kitahiro Kaneda

Hiroshi Tanioka

Ken-ichi Ohta

Akihiro Usami

Yoshihide Terao

Tomohiro Akiba

Hirohiko Ito

Koya Shimamura

Hiroyuki Sakai

Masanori Matsuzaki

Kazuhiko Ushiyama

Yoko Ido

Shigeo Fukuoka

Osamu Linuma

Ken-Ichi Ohta

An inspection apparatus inspects image data obtained by reading a sheet using a reference image of the image data. The inspection apparatus obtains first image data by reading a sheet having lines printed thereon, obtains second image data from print data of the lines, performs edge correction on the lines included in the second image data by applying a plurality of edge correction parameters being different from each other, and determines an edge correction parameter of the plurality of edge correction parameters that minimizes a difference between a density of the second image data subjected to the edge correction and a density of the first image data. In addition, edge correction is performed on the reference image using the determined edge correction parameter, and image data obtained by reading a sheet of an inspection target using the reference image on which the edge correction has been performed is inspected.

Inspection apparatus, method of controlling the same, and storage medium

An inspection apparatus selects at least one character area, in a first preview image obtained by reading and previewing a print product, sets a direction, for a character in the selected character area, registers the set direction and the character in the selected character area in association with each other, selects at least one character inspection area, in a second preview image obtained by reading and previewing a print product as an inspection target, sets a direction, for a character in the selected character inspection area, rotates the character inspection area to match the set direction, with the direction set for the character in the selected character area, performs character recognition, for the character in the rotated character inspection area, and inspects the character inspection area, based on a result of the character recognition and a result of recognizing the character in the selected character area.

Inspection apparatus, control method, and inspection method

An apparatus includes a reduction unit configured to perform color reduction processing for quantizing a color in the generated image data, a change unit configured to change, in a case where brightness of an edge pixel indicating an edge portion in an image based on the image data with the color quantized is equal to or higher than a threshold value, a pixel value of the edge pixel to a pixel value of a color of a pixel having highest brightness among pixels surrounding the edge pixel, and change, in a case where the brightness of the edge pixel is lower than the threshold value, the pixel value of the edge pixel to a pixel value of a color of a pixel having lowest brightness among the pixels surrounding the edge pixel.

Apparatus, method, and storage medium for performing color reduction processing

An apparatus includes, a change unit configured to change a pixel value of an edge pixel indicating an edge portion of an image based on the image data having the quantized color, wherein, in a case where the pixel value of the edge pixel is a pixel value changed by color reduction processing to decrease a luminance, the change unit changes the pixel value of the edge pixel to a pixel value of a pixel having a highest luminance among pixels surrounding the edge pixel, and wherein, in a case where the pixel value of the edge pixel is a pixel value changed by the color reduction processing to increase a luminance, the change unit changes the pixel value of the edge pixel to a pixel value of a pixel having a lowest luminance among pixels surrounding the edge pixel.

Image processing apparatus, image processing method, and storage medium

An image processing apparatus includes a reading unit configured to read an image of a document and generate image data, a first binarization unit configured to generate binary image data by performing halftone processing on the image data generated by the reading unit, a smoothing unit configured to perform smoothing processing on a character region of the binary image data, a second binarization unit configured to perform binarization processing on the character region having been subjected to the smoothing processing by the smoothing unit, and a character recognition unit configured to perform character recognition processing on the character region having been subjected to the binarization processing by the second binarization unit.

Image processing apparatus and method for control to smooth a character region of a binary image and perform character recognition

An apparatus includes a resolving unit configured to resolve input image data into image data for each frequency band, an acquisition unit configured to acquire skewness corresponding to the resolved image data resolved by the resolving unit, wherein the skewness is acquired from a histogram corresponding to each of the resolved image data, and an adjustment unit configured to determine image data to be processed, out of the resolved image data based on the acquired skewness acquired and perform gain adjustment on the determined image data.

An image processing apparatus includes a decomposition unit configured to decompose a color image into at least two color component images, a first obtaining unit configured to obtain a skewness of a histogram corresponding to each of the color component images, and a determination unit configured to determine based on the obtained skewnesses associated with the color component images whether the color image is glossy.

A binary image of an input image is generated, and a character region within the binary image and a region surrounding each character are acquired as character segmentation rectangle information. A thinning process is executed on a region within the binary image which is identified based on the character segmentation rectangle information to acquire a thinned image. An edge detected image of the region identified based on the character segmentation rectangle information is acquired. Whether each character identified based on the character segmentation rectangle information is a character to be separated from a background by the binarization process or not is determined based on a result of a logical AND of the thinned image and the edge detected image.

Image processing apparatus, method, and storage medium

A device having a function of adjusting image processing such as PWM setting, printer density setting and engine speed downstream of a video counter or a dot counter determines a correction coefficient of a video count value or a dot count value, according to a combination of adjustment values of image processing for realizing configured print settings, and corrects the count value by applying the correction coefficient to the video count value or the dot count value.

Image forming apparatus and remaining toner amount estimation method

An image compression apparatus determines a first reduction ratio according to an available memory capacity and reduces a multivalued image by the determined first reduction ratio to generate a first reduced multivalued image, and extracts a representative color of a character region from the first reduced multivalued image. The image compression apparatus reduces the first reduced multivalued image to generate a second reduced multivalued image, and compresses the second reduced multivalued image to generate a first compressed code. The image compression apparatus compresses a partial binary image corresponding to the character region to generate a second compressed code. Then, the image compression apparatus outputs compressed data including the first compressed code, the second compressed code, positional information about the character region, and information about the representative color of the character region.

Image compression apparatus, image compression method, and storage medium

A region division portion extracts an 'object', an 'anchor expression accompanying the object' and a &#x201c;text including the anchor expression&#x201d; from image data based on a paper document and an electronic document. A link processing portion generates link information that associates, in two ways, the &#x201c;object&#x201d;, the &#x201c;anchor expression included in the text&#x201d; or the &#x201c;text including the anchor expression&#x201d; with each other. Then, a format conversion portion converts the link information into electronic document data including two-way link information. When this electronic document data is displayed by an application and one of the &#x201c;object&#x201d; and the &#x201c;anchor expression included in the text&#x201d; is selected, the other can be displayed according to the link information.

Image processing device, method and storage medium for two-way linking between related graphics and text in an electronic document

In order to provide technology with which objects in image data can be managed in a further appropriate unit, an image processing apparatus includes an input unit for inputting image data; a detection unit that detects object images included in the input image data; a determination unit that determines an object attribute for each of the detected object images; a storage control unit that groups each of the detected object images based on the determined object attributes, and stores region information regarding the detected object images in a unit of the grouping in association with the image data in a storage unit; a dividing determination unit that determines whether or not to divide the grouped object images; and a dividing unit that extracts an individual object image from the grouped object images.

Image processing apparatus that groups object images based on object attribute, and method for controlling the same

An image processing apparatus extracts an area for each color from an illustration area, specifies an area that is in contact with the boundary of the illustration area, extracts a color around the illustration area, determines whether or not the extracted color around the illustration area is the same as the color of the specified area, and processes vector data that represents an area that has been determined as having the same color.

Image processing apparatus, image processing method, and medium storing program thereof

According to the present invention, it is possible to create electronic document data capable of highlighting an object detected through a search so that a user can easily recognize it. An image processing apparatus extracts an object from an input image and extracts metadata related to the object. The image processing apparatus, when determines to describe with a shape in accordance with the shape of the object, creates a vector path description of frame described with a shape in accordance with the shape of the object. Then, the image processing apparatus creates an electronic document including data of the input image and the vector path description of frame with which the metadata is associated. When a keyword search is performed on the created electronic document, highlight display is performed in accordance with the vector path description of frame with which metadata that matches the keyword is associated.

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Tokyo, Japan

Reiji Misawa