Canon Kabushiki Kaisha

Koya Shimamura

Reiji Misawa

Naoki Ito

Junya Arakawa

Kimimori Eguchi

An image processing apparatus generates a first image by adjusting luminance so as to preserve a signal value on a high-luminance side among signal values acquired by reading a document by a scanner, and detects a position of a region corresponding to the document in the generated first image. The image processing apparatus further generates a second image by performing adjustment so as to increase luminance of a pixel contained in the first image, and crops a document image from the generated second image based on the detected position of the region corresponding to the document.

Image processing apparatus, image processing method, and storage medium

To make it possible to cut out an image area corresponding to a document with a high accuracy from an image obtained by scanning a document without forcing a user to perform complicated work or without giving a feeling of discomfort at the time of performing multi-crop processing. To this end, first, position information on the document is acquired by detecting an edge component from a first image obtained by setting high the first white reference value. Then, an image area corresponding to the document is cut out based on the acquired position information from a second image obtained by setting the second white reference value lower than the first white reference value.

Image processing apparatus that performs multi-crop processing, method of generating image in units of documents by multi-crop processing and storage medium

An image processing apparatus receives designation of a target color to be removed, obtains the hue and chroma of the designated color, determines the target color based on the obtained hue and chroma, and replaces the signal value of a pixel contained in image data and having a signal value corresponding to a color falling within a predetermined range containing the designated color with a signal value indicating white, thereby performing color removal.

Image processing apparatus, image processing method, and storage medium for removing a designated color from an image

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

An image processing method for processing an image includes determining, selecting, and replacing. It is determined whether a portion, including a plurality of pixels and darker than a threshold in the image, is subject to a color replacement. One predetermined color from among a plurality of predetermined colors is selected, based on a color of at least a part of the plurality of pixels. Based on the determination, a color of the portion is replaced with the selected one predetermined color.

Image processing apparatus replacing color of portion in image into single color, image processing method, and storage medium

One or more image processing apparatuses, image processing systems, control methods and storage mediums for use with same are provided herein. At least one embodiment of an image processing apparatus includes: a scanning unit that scans multiple original documents placed on a platen glass and generates image data; an acquisition unit that acquires pieces of image data of the respective original documents from the image data generated by the scanning unit; a decision unit that decides on a page order based on pieces of geometric information of the pieces of image data acquired by the acquisition unit; and a file creation unit that converts the pieces of image data of the respective original documents into one file in the page order decided by the decision unit and stores the one file.

Image processing apparatus, image processing system, control method for image processing apparatus, and non-transitory computer readable medium

An aspect of the present invention provides an image processing apparatus that includes a reading unit configured to read a plurality of documents, a display control unit configured to display on a screen a first image corresponding to a first document among the plurality of documents read by the reading unit, a receiving unit configured to receive a position serving as an area starting point for of a designated area in the first image, and a specifying unit configured, according to the position serving as the area starting point received by the receiving unit, to specify an area of a second image corresponding to a second document read by the reading unit, wherein the display control unit displays on the screen, along with the first image, the area of the second image specified by the specifying unit.

Image processing apparatus and image processing method for clipping, from a second image, an area at a position corresponding to designated position in a first image

Provided is an image processing apparatus and image processing method that make it possible to reduce jaggedness and blurring that may occur when performing resolution conversion of an inputted image from low resolution to high resolution, and make it possible to output a high-resolution image. When performing the conversion from low resolution to high resolution, a multi-gradation signal value pattern that surround a pixel of interest for which interpolation is being performed is acquired. By performing pattern matching, a pattern that corresponds to the acquired signal value pattern is extracted from among pattern files that are prepared in advance for the acquired signal value pattern, after which the image is converted to high resolution by signal value substitution and then outputted.

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Tokyo, Japan

Koya Shimamura