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Uniformity detection method and device for cigarette packet printing colors

A detection method and uniformity technology, which is applied in the field of uniformity detection of cigarette pack printing color, can solve the problems of low precision, time-consuming and labor-intensive measurement methods

Inactive Publication Date: 2017-06-30
SHENZHEN KECAI PRINTING
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for detecting the uniformity of printed color of cigarette packs, so as to solve the problems of low precision, time-consuming and labor-intensive measurement methods in the prior art

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  • Uniformity detection method and device for cigarette packet printing colors
  • Uniformity detection method and device for cigarette packet printing colors

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Embodiment Construction

[0047] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the following descriptions are only specific illustrations of the embodiments of the present invention, and should not limit the protection scope of the present invention.

[0048] The invention provides a method and device for detecting the uniformity of printed color of cigarette packs, aiming at proposing a fast and practical measurement method for the color uniformity of the solid color area of ​​cigarette packs, so as to realize the color uniformity of the solid area of ​​cigarette pack products. The problem of uniformity measurement. The present invention mainly gathers the image of cigarette pack through sensor, then imports the computer that MATLAB (MATLAB is a kind of mathematics so...

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Abstract

The invention discloses a uniformity detection method and device for cigarette packet printing colors. The method comprises the steps of: segmenting an image of a cigarette packet into a plurality of same areas, collecting statistics on the quantity of information points containing preset information in each area, and acquiring the segmental scales of the areas according to the number of pixels of the image; calculating the quantity of information points of each area and the feature value of the segmental scale respectively, and calculating the slope according to the quantity of information points and the feature value of the segmental scale; acquiring a uniformity index of each area according to the slope, and judging whether the uniformity index is qualified. The method and the device have the advantages that the uniformity of printing colors is measured and judged using texture feature information of the image and micro changes of color distribution, and uniformity indexes of real areas of the cigarette packet are quickly and automatically measured with high precision.

Description

technical field [0001] The invention relates to the technical field of printing quality evaluation of cigarette pack printed matter, in particular to a method and device for detecting uniformity of printed color of cigarette packs. Background technique [0002] As a high-end and high-quality printing product, cigarette pack printing has attracted much attention from the printing and packaging industries. Because of its high quality and technical requirements, cigarette pack printing companies continue to update technology, improve product quality, and produce more exquisite cigarette pack products. In order to better improve the grade of cigarette pack products, current cigarette pack products often use a large number of spot colors and solid color areas as the background of the entire product to highlight the characteristics of cigarettes. In addition, in order to ensure product quality, it is necessary to check the graphic information and color information of cigarette pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06T7/11
CPCG06V10/44G06V10/462
Inventor 张建平郭凌华孙国安李跃科李子伟余军黎建恒
Owner SHENZHEN KECAI PRINTING
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