CN102506703B - Method for determining stamping area ratio of tipping paper used for tobacco - Google Patents
Method for determining stamping area ratio of tipping paper used for tobacco Download PDFInfo
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- CN102506703B CN102506703B CN201110306505.7A CN201110306505A CN102506703B CN 102506703 B CN102506703 B CN 102506703B CN 201110306505 A CN201110306505 A CN 201110306505A CN 102506703 B CN102506703 B CN 102506703B
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Abstract
The invention relates to a method for determining stamping area ratio of tipping paper used for tobacco. The method is characterized by comprising the following steps of: acquiring an image of a tipping paper sample by utilizing a digital camera or a scanner, inputting the acquired image into a computer, and processing the image with Photoshop software to obtain a pixel P1 of the whole tipping paper image and a pixel P2 of a stamping region, and the stamping area ratio of the tipping paper is equal to the ratio of P2 to P1. The method provided by the invention has the beneficial effects that the method can accurately and quantitatively determine the stamping area ratio of the tipping paper and has small personal error and good repeatability; the method is applicable to tipping papers which is stamped and printed with any patterns and has strong practicability; the method is simple to operate and high in measuring speed; and a tool used by the method is simple and easy to obtain, and the method can be realized just by a common scanner or digital camera and a computer installed with Photoshop software.
Description
Technical field
The invention belongs to the physical and chemical index analysis technical field of smoking material, be specifically related to a kind of method of measuring stamping area ratio of tipping paper used for tobacco.
Background technology
Cigarette tipping paper links together filter tip and cigarette securely, is to produce the indispensable important component part of filter tip cigarette.It is to take tipping paper body paper as base material, by printing front design, printing processing and printing the special-purpose paper product of cigarette that the operations such as aftertreatment are manufactured.Tipping paper is divided into 3 large classes by processing technology difference, i.e. thermoprint tipping paper, printing tipping paper and coating tipping paper.Thermoprint tipping paper adopts relief printing plate heat transfer technics to make, and its clear patterns, bright in luster, and colour-fast can play outstanding design motif and the effect such as false proof, so thermoprint tipping paper is very extensive in the application of medium-to-high grade cigarette.
Thermoprint type tipping paper is magnificent compared with printed form tipping paper in appearance, but in thermoprint process, easily produce the problems such as firkin, dry linting, leakage scald, along with the cry of health environment-friendly grows to even greater heights, country has higher requirement to the security of tipping paper, and the stamping area ratio of cigarette tipping paper (being stamping area proportion in tipping paper area) has also been subject to extensive concern and strict restriction.Yet the common pole of figure of hot stamping pattern is irregular, this gives calculating of stamping area ratio with very large inconvenience, still there is no a kind of method that can Accurate Determining tipping paper stamping area ratio at present.
Summary of the invention
Object of the present invention provides a kind of tipping paper stamping area ratio assay method based on existing problem in above-mentioned prior art just, and the method can be measured tipping paper stamping area ratio by accurate quantitative analysis, and personal error is little, favorable reproducibility.
The object of the invention is to be achieved through the following technical solutions:
The method of mensuration stamping area ratio of tipping paper used for tobacco of the present invention: be to utilize digital camera or scanner to carry out image collection to tipping pattern product, by the image input computing machine gathering, application Photoshop software is processed, and obtains the pixel P of whole tipping paper pattern
1pixel P with thermoprint region
2, and the area S in thermoprint region
2area S with whole tipping paper
1ratio just equal the ratio P of the two pixel
2/ P
1.
Specific works process of the present invention is as follows:
A, gained image is carried out in Photoshop to cutting, obtain the tipping paper pattern of a required size of cigarette.
B, with Photoshop, open tipping paper pattern file, carry out " image > histogram " and recall histogram window, if what use is Photoshop CS version, carry out " window > histogram " order, open after histogram window, click the drop-down menu in the pop-up window upper right corner, thereby select " all channels view ", then click the upper right corner in histogram "! ", " cache level " is adjusted into " 1 ", the data that now " pixel " shows are the pixel (P of whole tipping paper pattern
1).
3, pattern is amplified to thermoprint edge clear visible, integrated application Photoshop selection tool (the rectangle tool, lasso tool, magic wand menu etc.), in conjunction with artificial cognition, accurately selected thermoprint region, in like manner, by " pixel " value in above-mentioned steps record " histogram ", obtain the pixel P in thermoprint region
2.
4, result of calculation: P
2with P
1ratio be exactly the area S in thermoprint region
2area S with whole tipping paper
1ratio, i.e. tipping paper stamping area ratio.
Beneficial effect of the present invention: the method can be measured tipping paper stamping area ratio by accurate quantitative analysis, and personal error is little, favorable reproducibility; This method has the tipping paper of arbitrary shape pattern all applicable, practical for thermoprint; Method is simple to operate, and measuring speed is fast; The instrument that this method is used is simple and easy to get, only needs common scanner or digital camera, and the computing machine that Photoshop software has been installed just can be realized.
Accompanying drawing explanation
Fig. 1 is certain tipping paper pattern.
Figure is chosen in the thermoprint region that Fig. 2 is certain tipping paper pattern.
Fig. 3 is the operation chart under 5 editions software environments of Photoshop CS.
Embodiment
The present invention is further described below in conjunction with accompanying drawing:
L step: the preparation of tipping paper pattern
Scanning method: tipping paper sample to be measured is paved, be take color mode 100% ratio scanning (resolution is 300 pixel/inch) with scanner, obtain picture.By the cutting in photoshop of gained picture, obtain the tipping paper pattern of a required size of cigarette, as shown in Figure 1;
Photographic process: tipping paper sample to be measured tiling is positioned in the environment of the good and shadowless lighting of light, use the digital photographing apparatus with macro function more than 5,000,000 pixels, sentence tipping paper center apart from tipping paper 150mm, it is focusing, by macro mode, gather digital image, by the cutting in Photoshop of gained image, obtain the tipping paper pattern of a required size of cigarette;
The 2nd step: the pixel of checking whole tipping paper pattern
With Photoshop, open tipping paper pattern file, carry out " image > histogram " and recall histogram window, if what use is Photoshop CS version, carry out " window > histogram " order, open after histogram window, click the drop-down menu in the pop-up window upper right corner, thereby select " all channels view ", then click the upper right corner in histogram "! ", " cache level " is adjusted into " 1 ", the data that now " pixel " shows are the pixel (P of whole tipping paper pattern
1).
The 3rd step: the selection in thermoprint region
Pattern is amplified to thermoprint edge clear visible, integrated application Photoshop selection tool (the rectangle tool, lasso tool, magic wand menu etc.), in conjunction with artificial cognition, accurately selectes thermoprint region, as shown in Figure 2." evil spirit rod " instrument is the selection tool of a type in Photoshop, can be used for selecting the region that color is close or identical, for selecting the region that thermoprint color is close very convenient.After selected figure, and if the actual size of thermoprint have deviation, can flexible utilization function key Alt or Shift delete or increase and select region, can adjust " tolerance " value of evil spirit rod simultaneously, regulate the size of each selection area." lasso trick " instrument is another kind of conventional region selection tool, when image is chosen, from the starting point that will choose, clicks and drag mouse, just can choose as required image, and it can combine use with " evil spirit rod " instrument.
The 4th step: check selection area pixel
Behind accurately selected thermoprint region, carry out " image > histogram " and recall histogram window, if what use is Photoshop CS version, carry out " window > histogram " order, open after histogram window, click the drop-down menu in the pop-up window upper right corner, thereby select " all channels view ", then click the upper right corner in histogram "! ", " cache level " is adjusted into " 1 ", the data that now " pixel " shows are the pixel (P in thermoprint region
2), as shown in Figure 3.
The 5th step: calculate stamping area ratio
P
2with P
1ratio be exactly tipping paper stamping area ratio.
Claims (1)
1. a method of measuring stamping area ratio of tipping paper used for tobacco, it is characterized in that: utilize digital camera or scanner to carry out image acquisition to tipping pattern product, by the image input computing machine gathering, application Photoshop software is processed, and obtains the pixel P of whole tipping paper pattern
1pixel P with thermoprint region
2, and tipping paper stamping area ratio just equals the ratio P of the two pixel
2/ P
1, concrete steps are as follows:
L step: the preparation of tipping paper pattern
While using scanning method: tipping paper sample to be measured is paved, and with scanner, with color mode 100% ratio scanning, resolution is 300 pixel/inch, obtains picture, by the cutting in photoshop of gained picture, obtains the tipping paper pattern of a required size of cigarette;
While using photographic process: tipping paper sample tiling to be measured is positioned in the environment of the good and shadowless lighting of light, use the digital photographing apparatus with macro function more than 5,000,000 pixels, sentence tipping paper center apart from tipping paper 150mm, it is focusing, by macro mode, gather digital image, by the cutting in Photoshop of gained image, obtain the tipping paper pattern of a required size of cigarette;
The 2nd step: the pixel of checking whole tipping paper pattern
With Photoshop, open tipping paper pattern file, carry out " image > histogram " and recall histogram window, if what use is Photoshop CS version, carry out " window > histogram " order, open after histogram window, click the drop-down menu in the pop-up window upper right corner, thereby select " all channels view ", then click the upper right corner in histogram "! ", " cache level " is adjusted into " 1 ", the data that now " pixel " shows are the pixel P of whole tipping paper pattern
1;
The 3rd step: the selection in thermoprint region
Pattern is amplified to thermoprint edge clear visible, integrated application Photoshop selection tool: the rectangle tool, lasso tool, magic wand menu, in conjunction with artificial cognition, accurately select thermoprint region;
The 4th step: check selection area pixel
Behind accurately selected thermoprint region, carry out " image > histogram " and recall histogram window, if what use is Photoshop CS version, carry out " window > histogram " order, open after histogram window, click the drop-down menu in the pop-up window upper right corner, thereby select " all channels view ", then click the upper right corner in histogram "! ", " cache level " is adjusted into " 1 ", the data that now " pixel " shows are the pixel P in thermoprint region
2;
The 5th step: calculate stamping area ratio
P
2with P
1ratio be exactly tipping paper stamping area ratio.
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| CN102854135B (en) * | 2012-09-06 | 2015-08-19 | 江苏中烟工业有限责任公司 | A kind of assay method of smoked sheet degree of unfolding |
| CN103245307B (en) * | 2013-05-22 | 2015-07-29 | 国家烟草质量监督检验中心 | A kind of detection method being suitable for mensuration cigarette tipping paper stamping area |
| CN103743744A (en) * | 2014-01-16 | 2014-04-23 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Engineering masonry mortar plumpness detection method |
| CN103750551A (en) * | 2014-01-21 | 2014-04-30 | 江苏中烟工业有限责任公司 | Method for analyzing laser drilling uniformity of cigarette filter on basis of electronic microscope image |
| CN104568949B (en) * | 2014-12-23 | 2018-02-23 | 宁波亚洲浆纸业有限公司 | A kind of quantitative detecting method and its device of the quick-fried black degree of cardboard |
| CN106153624A (en) * | 2016-06-23 | 2016-11-23 | 四川农业大学 | The grain of wood and the assay method of surface characteristic feature coverage rate |
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