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Method and device for obtaining image diversity factor result

A technology for acquiring images and degree of difference, applied in the field of image processing, can solve problems such as inaccuracy and difficult inspection of detection content, and achieve the effect of improving accuracy

Active Publication Date: 2013-07-03
PEKING UNIV +1
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Problems solved by technology

[0006] Aiming at the problem that the image difference detection method of the related art is too sensitive to the small offset of the image content or the difference positioning is inaccurate, which leads to the problem that the detection content is difficult to check or the check is inaccurate, the present invention has not yet been proposed for effective problems. , the main purpose of the present invention is to provide a method and device for obtaining image difference measurement results to solve the above problems

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  • Method and device for obtaining image diversity factor result
  • Method and device for obtaining image diversity factor result

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Embodiment Construction

[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] figure 1 is a schematic structural diagram of an apparatus for obtaining image difference measurement results according to an embodiment of the present invention; Figure 2a-2b is a schematic diagram of results of similar points in two images according to an embodiment of the present invention; Figure 2c is based on Figure 2a-2b A schematic diagram of the offset tolerance range of point x in the embodiment.

[0037] Such as figure 1 As shown, the device may include: a first acquiring module 10, configured to acquire each pixel at the same position by comparing the color similarity and structural similarity of the pixels at the same position in the first image and the second image ...

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Abstract

The invention discloses a method and device for obtaining an image diversity factor result. The method includes the steps: obtaining a color diversity factor value and a structure diversity factor value of pixels in each same position by comparing the color similarity and the structure similarity of pixels in the same position in a first image and a second image; obtaining offset of each pixel through calculation and according to the color diversity factor value and the structure diversity factor value, and calculating an offset consistence diversity factor value of any pixel according to the offset of each pixel; obtaining diversity factor value results of the two images according to the color diversity factor values, the structure diversity factor values and the offset consistence diversity factor values. According to the method device for obtaining the image diversity factor result, improvement of precision of the image difference detection results is achieved.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a method and device for acquiring image difference measurement results. Background technique [0002] After the pre-press personnel complete the job, they need to compare the original drawing with the working drawing to check whether there are layer errors, inconsistent object sizes and other errors caused by the carelessness of the staff. In the process of editing documents, prepress personnel frequently adjust colors, and image differences are always accompanied by changes in image structure and content. Difference comparison pays more attention to structural changes. [0003] At present, the methods for checking image differences mainly include human eye observation, image color difference, comparison of salient features of images, statistical comparison and other methods. Among them, the method of color difference is mainly to obtain a color difference map by comparin...

Claims

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Application Information

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IPC IPC(8): G06T7/00
Inventor 李平立刘文
Owner PEKING UNIV
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