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Location kernel extraction method and extraction device of printed image

A printing image and extraction method technology, applied in the printing field, can solve the problems of good extraction and positioning kernel effect, time-consuming and laborious positioning kernel, poor extraction effect, etc., and achieve the effect of improving user experience, accurate selection, and simple operation

Active Publication Date: 2019-06-21
BEIJING FOCUSIGHT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the current modeling process, a specific area on the image is usually manually selected as the positioning kernel. Manual selection of the positioning kernel is time-consuming, laborious, complicated, and has a strong experience in it, resulting in the inability to accurately judge which image is in the image. The effect of local extraction and positioning kernel is good, and the extraction effect of which place is poor, it is only based on the actual operator's feeling

Method used

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  • Location kernel extraction method and extraction device of printed image
  • Location kernel extraction method and extraction device of printed image
  • Location kernel extraction method and extraction device of printed image

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the present invention, unless otherwise clearly specified...

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Abstract

The invention discloses a printed image positioning core extraction method and an extraction device. The method comprises the following steps: a quasi positioning core is selected; image pretreatment is carried out; pixel normalized template matching is carried out in a predetermined range; a two-dimensional distribution map is scanned; fitting data of the quasi positioning core are screened and ranked to pick up the best position; the best position is verified, and in the case of uniqueness, the quasi positioning core serves as the best positioning core; and according to foreground and background region distribution of the printed image, the best positioning core serves as the best positioning core for the foreground region or the best positioning core for the background region. The extraction method disclosed by the embodiment of the invention can stably, effectively and accurately select the best positioning core, the operation is simple, and the use experience of the user is improved.

Description

technical field [0001] The invention relates to the field of printing technology, in particular to a method and device for extracting a positioning kernel of a printed image. Background technique [0002] In the use of printing inspection software, the most used and time-consuming work is modeling. Template management is a very important modeling tool. For different printing products and processes, different inspection templates can be created. A good inspection template can Greatly improve the detection rate, and can keep the false detection rate within an acceptable range. At the same time, it is beneficial to reduce the occurrence of rejections, thereby effectively improving the quality of printed products, and then increasing profits for related companies and improving the market. Competitiveness and customer acceptance. [0003] Among them, drawing the positioning nucleus and drawing various detection areas takes the most time in the modeling work. However, in the det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
CPCG06T7/0006G06T2207/10004G06T2207/30144
Inventor 吴健雄王岩松王郑
Owner BEIJING FOCUSIGHT TECH
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