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Image processing apparatus, image processing method, image reading apparatus, image forming apparatus

An image processing device and image processing technology, applied in image data processing, image communication, graphics and image conversion, etc., can solve problems such as inability to correctly detect consistent points, and achieve the effect of improving accuracy

Inactive Publication Date: 2010-06-02
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the structure disclosed in JP-A-4-314263, the image after the binarization process and the edge extraction process is used as the feature data of each input image, and the comparison of the pattern matching method is performed. , implicitly restricts that the originals that have been read separately multiple times will not be rotated, so there is a problem that the matching point cannot be detected correctly when the actual two images are pattern matched

Method used

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  • Image processing apparatus, image processing method, image reading apparatus, image forming apparatus
  • Image processing apparatus, image processing method, image reading apparatus, image forming apparatus
  • Image processing apparatus, image processing method, image reading apparatus, image forming apparatus

Examples

Experimental program
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Embodiment approach 1

[0067] figure 1 A block diagram for explaining the internal structure of an image processing system including the image processing apparatus of this embodiment. The image processing system of the first embodiment includes an operation panel 1, an image input device 3, an image processing device 5A, and an image output device 7.

[0068] The operation panel 1 is composed of a liquid crystal display device, various switches, etc., displays information to be reported to the user, and accepts various selection operations by the user.

[0069] The image input device 3 is a reading unit that optically reads an image of a document, and includes a light source that irradiates the document for reading with light, an image sensor such as a CCD (Charge Coupled Device), and the like. In the image input device 3, a reflected light image from a document set at a predetermined reading position is formed on the image sensor, and an analog electric signal of RGB (R: Red, G: Green, B: Blue) is outpu...

Embodiment approach 2

[0132] In the first embodiment, the text collation processing unit 53 is used to perform image synthesis, but it may be configured to add a function of text collation processing to the image synthesis process. In this embodiment, the structure of an image processing apparatus in which text collation processing is added to the image composition processing will be described.

[0133] Figure 21 A block diagram for explaining the internal structure of an image processing system including the image processing apparatus of this embodiment. The image processing system of the second embodiment includes an operation panel 1, an image input device 3, an image processing device 5B, and an image output device 7. However, the configuration other than the image processing device 5B is completely the same as that of the first embodiment.

[0134] The image processing device 5B consists of an AD conversion unit 51, a shading correction unit 52, an image synthesis processing unit 64, an input ton...

Embodiment approach 3

[0147] In Embodiments 1 and 2, each processing is realized by hardware, but it may be configured to be realized by processing by software.

[0148] Figure 27 A block diagram for explaining the internal structure of an image processing apparatus in which the computer program of this embodiment is installed. 100 in the figure represents the image processing device of this embodiment, specifically, a personal computer, a workstation, and the like. The image processing apparatus 100 includes a CPU 101, and hardware such as ROM 103, RAM 104, a hard disk 105, an external storage unit 106, an input unit 107, a display unit 108, and a communication interface 109 are connected to the CPU 101 via a bus 102. The CPU 101 controls each part of the hardware in accordance with a control program stored in the ROM 103 in advance.

[0149] The RAM 104 is a volatile memory that temporarily stores various data generated during the execution of the control program or the program code (executable form...

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Abstract

The invention provides a image processing device and method, a image reading and forming device and a recording medium. A document matching process section contains: features calculating section for extracting a plurality of connected components from input document images and calculating the centroids of the connected components and consequently determining the feature points; a features calculating section for calculating features of the document image from the distance between the calculated feature points; and a vote processing section for voting for a similar image in accordance with the calculated features, and uses the functions of this document matching process section and extracts the feature point from each of the two images and then correlates between the extracted feature pointsand consequently joins the images.

Description

Technical field [0001] The present invention relates to an image processing method, an image processing device, an image reading device, and an image forming device that combine two images. Background technique [0002] In the past, in image forming apparatuses such as copiers, there have been cases in which a plurality of input images are partially repeatedly joined to generate one image, and image formation is performed on the generated image. Therefore, as an image processing apparatus suitable for a copying machine for copying an image of a document on a recording medium, when copying an image of a document larger than the scanner size which is the maximum size that can be read by the image reading unit, For each partial image of a plurality of partial images in which the image of the manuscript is partially repeatedly divided, the reading process is performed multiple times, and the plurality of read partial images are joined to restore the original manuscript image, which c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/387H04N1/04G06T3/40
Inventor 丰田将哲大平雅和
Owner SHARP KK
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