Pfu Limited

Kiyoto Kosaka

Masayoshi Hayashi

Satoshi Kubo

Hirokazu Kawatani

Ryo Hayashi

Keiji Honda

Hiroyasu Goto

Yasunori Taniguchi

Yuichi Okumura

Naoyoshi Kiku

Hiroki Tanizaki

Koichi Kitagawa

Takayuki Kawanaka

Shingo Kanaya

Satoshi Sakai

Tomoaki Wada

Masahiko Kobako

Kazuaki Umi

Naoto Yamaguchi

Mitsuru Nishikawa

Hiroyuki Kameda

Shinobu Yamamoto

Hidenori Yamamoto

Yasuhito Nagakoshi

Masashi Kawabuchi

Hiroko Nankai

Provided are an image processing apparatus, a control method, and a control program for more accurately removing the seal component from the input image including the seal. An image processing apparatus includes an acquisition module to acquire an input image, a detection module to detect a seal area corresponding to a seal in the input image, a calculation module to calculate a seal color ratio for each pixel in the seal area, a background information generating module to generate background information, a seal removal image generating module to generate a seal removal image acquired by removing a seal component from the input image, by synthesizing each pixel in the seal area and the background information corresponding to each pixel, based on the seal color ratio, and an output module to output the seal removal image or information generated using the seal removal image.

Image processing device, control method, and control program

An image processing apparatus includes a storage device to store a shading pattern in which a condition of gradation values of a target pixel and a plurality of pixels having a predetermined positional relationship with respect to the target pixel are set, a processor to acquire an multiple value image, generate a binary image from the multiple value image, detect a pixel satisfying the condition set in the shading pattern from the multiple value image as a part of a shading, a generate a shading removal pattern for removing the detected shading, based on the multiple value image, generate a shading removal image by applying the shading removal pattern to the binary image, and an output device to output the shading removal image or information generated using the shading removal image.

Provided are an image processing apparatus, a control method, and a control program for more accurately removing the background pattern from the image including the background pattern. An image processing apparatus includes an acquisition module to acquire an input image, a multi-valued image generating module to generate a multi-valued image from the input image, a binary image generating module to generate a binary image acquired by binarizing the input image, a detection module to detect a thin line having a width equal to or less than a predetermined number of pixels from the multi-valued image, a background pattern removal image generating module to generate a background pattern removal image in which the thin line is removed from the binary image, based on the thin line detected from the multi-valued image, and an output module to output the background pattern removal image or information generated using the background pattern removal image.

Image processing device, control method and control program for more accurately removing a background pattern from an image

A mobile terminal includes a memory, and a processor coupled to the memory, wherein the processor is configured to execute first acquiring a frame obtained through photographing, second acquiring document image data of a document from the frame, first determining whether a form partial feature in a registered form and a document partial feature at a position corresponding to a position of the partial feature match, the document partial feature being in the document, and third acquiring a frame obtained through re-photographing when it is determined that the form partial feature and the document partial feature do not match.

Mobile terminal, image processing method, and computer-readable recording medium

An image processing device includes a memory configured to store layout data of a layout of a format, and a processor coupled to the memory, wherein the processor is configured to execute first acquiring a captured image that includes a format region, detecting edges that are included in the captured image, second acquiring edge straight lines based on the edges, calculating a correction amount of the format region with reference to the layout based on the edges, selecting, as a selected straight line, an edge straight line that is outermost among the edge straight lines that form a rectangle, third acquiring a reference straight line that forms an outline of the format region based on the correction amount and the selected straight line, and specifying a format coordinate of the format region based on the reference straight line.

Image processing device, image processing method, and computer program product

An image processing device includes a memory, and a processor coupled to the memory, wherein the processor is configured to execute acquiring a captured image including an original document region, detecting a color component value of a predetermined area in the captured image, detecting an edge in the predetermined area to acquire an edge amount indicating any one or both of a density of the edge and an edge intensity, and identifying, based on the color component value and the edge amount, a difference between a background of the original document region and a background of a background region obtained by removing the original document region from the captured image.

A mobile terminal includes a memory and a processor coupled to the memory, wherein the processor executes a process including acquiring a frame acquired by image capturing, detecting document position data of a document from the frame, determining a document type of the document, calculating image quality of document image data of the document on the basis of the document position data and the document type, determining whether the image quality is at a character recognizable level, and acquiring a frame acquired by the image recapturing when it is determined that the image quality is not at the character recognizable level.

An image processing device includes a division unit which divides an input image into a first content area and a first background area, a generation unit which corrects a first content area pixel included in the first content area by using a first peripheral pixel existing in the vicinity of the first content area among first background area pixels included in the first background area to generate a first background image formed with the after-correction first content area pixel and the first background area pixel, and a removal unit which removes the first background image from the input image.

Image processing device, image processing method, and non-transitory computer-readable recording medium

According to the present disclosure, an image-processing apparatus identifies for each gradation value a connected component of pixels of not less than or not more than the gradation value neighboring and connected to each other in an input image, thereby generating hierarchical structure data of a hierarchical structure including the connected component, extracts based on the hierarchical structure data a connected component satisfying character likelihood as a character-like region, acquires a threshold value of binarization used exclusively for the character-like region, acquires a corrected region where the character-like region is binarized, acquires a background where a gradation value of a pixel included in a region of the input image other than the corrected region is changed to a gradation value for a background, and acquires a binary image data of a binary image composed of the corrected region and the background region.

Image-processing apparatus, image-processing method, and computer program product

An image processing apparatus includes a presumed background region extractor for extracting a presumed background region presumed to include an image of a background from an input image, a threshold value determination module for determining a threshold value based on pixels in the presumed background region, an edge pixel extractor for using the threshold value to extract edge pixels from the input image, and a document region detector for detecting a document region from the edge pixels.

Image processing apparatus, region detection method and computer-readable, non-transitory medium

An image processing apparatus includes a color component image generator for extracting a particular color component from an input image to generate a color component image, an expanded-color-component image generator for expanding particular pixels in the color component image to generate an expanded-color-component image, an edge pixel extractor for extracting edge pixels from the expanded-color-component image, and a document region detector for detecting a document region from the edge pixels.

According to the present embodiment, an image-reading apparatus determines any one or both of the type of document and the shape of a document, selects any one or both of an appropriate document tilt detection method and an appropriate document position detection method according to any one or both of the determined type of document and the determined shape of a document, and detects any one or both of the tilt of the document and the position of the document by the selected detection method.

Image-reading apparatus, image-reading method, program, and recording medium

An image-reading apparatus according to the present invention reads one or more documents to acquire a read image, detects edge coordinates of a document image closest to an outer edge of the read image in a plurality of certain directions, and regionally divides the read image in the certain directions based on any one or both of a region of the read image in which no edge coordinates are detected and the edge coordinates of an edge end of the detected document image.

Image-reading apparatus, image-processing method, and computer program product

An image-reading apparatus includes a case constituted to shut off ambient light and including an opening on a bottom surface thereof, an image capturing unit capturing an image of a medium in the case through the opening, a plurality of light sources disposed in the case to emit light to the opening, and an image-processing unit performing image capturing by the image capturing unit, and performing composition process on plural image data captured by the image capturing unit. The light sources emit light in a direction to form shadowed areas outside of different edges of the medium when the medium is smaller than an area of the opening, and the image-processing unit extracts the edges based on the shadowed areas in the image data and crops the medium from the image data based on the extracted edges.

Image-reading apparatus

There are provided an image processing apparatus, line detection method and a computer-readable, non-transitory medium that can precisely detect boundaries of a document from a read image. The image processing apparatus includes an edge pixel extractor for extracting edge pixels from an input image, a line candidate detector for extracting a line candidate from the extracted edge pixels by using Hough transformation, and a line detector for detecting a line from edge pixels within a predetermined distance from the line candidate by using the least square method.

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Ishikawa, Japan

Kiyoto Kosaka