Pattern detecting method, image processing control method, image processing device and recording medium

An image processing device and graphic detection technology, applied in image data processing, image enhancement, image acquisition, etc., can solve problems such as inability to prevent illegal copying and inability to pre-specify

Inactive Publication Date: 2006-01-18
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this device, when the entire design on the surface of the object is specified, it is effective. For general confidential documents, the graphics on the entire surface of the document cannot be specified in advance. Readability, since it is easy to hide this part when reading an image, it cannot prevent illegal copying

Method used

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  • Pattern detecting method, image processing control method, image processing device and recording medium
  • Pattern detecting method, image processing control method, image processing device and recording medium
  • Pattern detecting method, image processing control method, image processing device and recording medium

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Embodiment Construction

[0047] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] figure 1is a structural diagram of an embodiment of the present invention, in figure 1 Among them, 101 is an image input unit such as a scanning unit, 102 is a specific pattern detection unit as one of the characteristics of the present invention, 103 is an image output unit for imaging and printing a scanned image, and 104 is an image that stores the scanned image A data storage unit for data or data in each process, 105 is an overall process control unit, 106 is a data communication channel, and 107 is an external notification device that communicates with an external device through a network or the like.

[0049] figure 2 is a processing flowchart of the embodiment of the present invention, refer to figure 2 Be explained. First, the document is optically scanned by the image input unit 101 to obtain an image (step 201 ), and the image sig...

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PUM

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Abstract

To prohibit an unauthorized copying in a copying machine, etc., without impairing the readability of an original document also while preventing document contents from being easily separated from a pattern by printing a special pattern on the rear face of the original by a method capable of printing the original document by normal monochrome printer or color printer. A specific pattern detecting part 102 detects a specific pattern candidate printed on the rear face of a document from an acquired image, and decides whether the document is one on which the specific pattern was printed on the rear face of the document by checking arrangement relation about the pattern candidate, and an image outputting part 103 inhibits operations such as copying, when the specific pattern is printed.

Description

technical field [0001] The present invention relates to a pattern detection method for detecting a specific pattern for preventing confidential documents from being illegally copied, an image processing control method for controlling an image processing function based on the result of detecting a specific pattern, an image processing device, and a recording medium storing an image processing control program. Background technique [0002] In the past, methods for preventing unauthorized copying have been proposed, such as using special paper that cannot be illegally copied with metallic luster (JP-A-6-155975 A), sticking marks for preventing unauthorized copying on printed matter (Japanese Patent Application Laid-Open No. 6-155975). KOKAI Publication No. 6-259013), black-and-white duplication with two-color printing of characters and backgrounds with approximately the same reproduction density (JP-A-7-89215), latent image after duplication (JP-A-6-68051), etc. method. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06T7/00B41M3/14
CPCG06T1/0007G06T2207/10008G06V30/40
Inventor 斋藤高志
Owner RICOH KK
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