Splicing method for printing file scanning and amplification images

A technology for printing files and enlarging images, applied in image data processing, graphic image conversion, instruments, etc. It can solve the problems of inability to compare and observe different parts, and inability to observe the overall shape of enlarged characters, and achieves strong fault tolerance for splicing and good splicing effect. , the effect of shortening the splicing time

Active Publication Date: 2017-05-10
上海蓝渺智能工程有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Document inspectors cannot observe the overall shape of enlarged characters;
[0014] (2) Document inspectors can only observe one part of the document at a time, and cannot compare and observe different parts of the document
[0019] Third, in some cases, due to the small characters in the printed file, the overlapping parts of all the upper and lower (Y axis) adjacent images are all white backgrounds, without any content, such as Figure 5 shown
[0020] These problems cannot be solved by existing image stitching methods.

Method used

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  • Splicing method for printing file scanning and amplification images
  • Splicing method for printing file scanning and amplification images
  • Splicing method for printing file scanning and amplification images

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Embodiment Construction

[0048] The above-mentioned features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

[0049] Figure 6 It shows the flow of a preferred embodiment of the mosaic method for scanning enlarged images of printed documents according to the present invention. See Figure 6 , the following is a detailed description of each step of the splicing method of this embodiment.

[0050] Step 1: Binarize the intake image of the print file.

[0051] The image captured by the CCD camera is a black and white image with a gray scale of 0 to 255: 0 means black, 255 means white, and other values ​​between 0 and 255 indicate gray levels between black and white. In this step, us...

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Abstract

The invention discloses a splicing method for printing file scanning and amplification images. Splicing is realized by discovering the maximum overlap ratio between the photographed images. The technical scheme is that binary processing is performed on the photographed images of a printing file; an X-axis overlap value and a Y-axis deviation value are calculated; a Y-axis overlap value and an X-axis deviation value are calculated; a global overlap value and a deviation value are obtained; and corresponding deviation is performed by using the global overlap value and the deviation value so as to perform image splicing.

Description

technical field [0001] The invention relates to an image splicing method, in particular to an image splicing method for scanning enlarged images of printed documents. Background technique [0002] In the document inspection work in the field of public security and court evidence, it is necessary to enlarge the characters in the printed documents to more than 50 times, and observe and analyze the details of the characters. For this application, a scanning camera system with magnifying microscope function is currently used. This system can capture the content of the printed file into a series of continuous enlarged images adjacent to the left and right and up and down, and store them in the computer. middle. [0003] The principle of this system is as figure 1 As shown, it is composed of a CCD digital camera 1 , a magnifying microscope lens 2 , an LED light source 3 , a mobile platform 4 , an instrument bracket 5 and a base 6 . CCD digital video camera 1 is a kind of equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
CPCG06T3/4038
Inventor 毕克云王筠
Owner 上海蓝渺智能工程有限公司
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