CN101655489A - Method for determining adhesive force and rust area of coating by Photoshop - Google Patents
Method for determining adhesive force and rust area of coating by Photoshop Download PDFInfo
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- CN101655489A CN101655489A CN200910067501A CN200910067501A CN101655489A CN 101655489 A CN101655489 A CN 101655489A CN 200910067501 A CN200910067501 A CN 200910067501A CN 200910067501 A CN200910067501 A CN 200910067501A CN 101655489 A CN101655489 A CN 101655489A
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Abstract
The invention relates to a method for determining adhesive force and rust area of coating by Photoshop. The method includes that adhesive force testing sample plate is subject to color image scanningby a scanner, the scanned image is processed by Photoshop, pixel ratio is utilized to substitute area ratio to evaluate adhesive force grade, the proportion of rust area accounting for pixel value isused for conversion, so as to obtain absolute rust area, panel middle width and height, sample plate total area can be obtained by product of length and height, the area is record, and the rust area is obtained by pixel value of rust area multiplying by whole sample plate total area. The method can accurately realize quantitative determination and rust area and reduce man-made error; the method issimple and accurate, cost is low, and feasibility is strong, thus providing a practical method for coating performance research; and the tools used by the method are available, and the method can berealized only by a common scanner in work place and a computer installed with Photoshop software.
Description
Technical field
The present invention relates to the determination techniques of a kind of coating adhesion and rust area, be specially the coating model scanning of carrying out the model of cross cut test and getting rusty with scanner, utilize Photoshop software again, coating adhesion and rust area are carried out the method for quantitative measurment by measurements and calculations.
Background technology
Cross-hatching can be measured coating adhesion in national standard at present, determines the classification of coating adhesion according to the rate of peeling off of coating.Can only lean on visual inspection and standard grading figure to compare the classification of estimating coating adhesion for the degree of peeling off of coating, the method operation easier is bigger, often brings artificial subjective factor into; The water tolerance of coating and the evaluation of corrosion resistance will use coating foaming, peel off the evaluation with rust area, because the shape in the disbonding and the zone of getting rusty is irregular, at present also not about the quantitative measurement in the disbonding and the zone of getting rusty.
Summary of the invention
Purpose of the present invention just is at above-mentioned the deficiencies in the prior art, provides a kind of Photoshop of utilization to measure the method for coating adhesion and rust area of coating.
Another object of the present invention provides a kind of method of measuring rust area of coating with Photoshop.
The objective of the invention is to be achieved through the following technical solutions;
With the adhesion test sample plate, carry out coloured image scanning with scanner, image is handled with Photoshop, utilize pixel than replacing area and recently estimate the adhesion grade, its concrete operations comprise following order and step:
A, get the experiment model, model is scanned in 100% ratio, and press gif form reservation image with the resolution of scanner with color mode 100-600dpi;
B, open image file with Photoshop, carry out " image＞histogram " and access histogram window, if what use is Photoshop CS version, then carry out " window＞histogram " order, after opening histogram window, click the little triangle button in the window upper right corner, from popup menu, select earlier by " expansion view ", select " showing statistics " item again, make histogram display pixel statistical information;
C, usefulness " rectangular marquee " are chosen the overall area of cross cut test, " pixel " value in the record " histogram ";
D, choose the zone of peeling off, " pixel " value in the record " histogram ";
E, peel off the area pixel value and go out to peel off rate, determine the grade of adhesion again according to the cross cut test grade scale of filming divided by a calculated for pixel values of drawing lattice experiment overall area.
Ratio with the shared pixel value of rust area converses the absolute area of getting rusty, promptly use " constituency " function of Photoshop, choose the monoblock model, ruler units in the information panel is made as cm, check wide and high in " information " panel (W and H), the model total area is obtained by long and high product, writes down this area, simultaneously pixel value in the record " histogram "; D chooses the zone of getting rusty set by step, the pixel value that record gets rusty and distinguishes; The pixel value in district or the pixel value * monoblock model total area of monoblock model get rust area with getting rusty.
Beneficial effect: this method is quantitative measurement adhesion and rust area accurately, reduces personal error; Method is simple, accurate, cost is low, workable, and a kind of method of practicality is provided for coating performance research; The instrument that this method is used is simple and easy to, and the computing machine that only needs the common scanner in office space and PhOtoshop software has been installed just can be realized.
Description of drawings:
Fig. 1 is the operation chart under the Photoshop software environment.
Embodiment:
Be described in further detail below in conjunction with embodiment:
The first step: get the experiment model, be placed on the transparent plastic plate, model 100% ratio is scanned, and press gif form reservation image with the resolution of scanner with color mode 100-600dpi;
Second step: open image file with Photoshop, carry out " image＞histogram " and access histogram window; If what use is Photoshop CS version, then carry out " window＞histogram " order.After opening histogram window, click the little triangle button in the window upper right corner, from popup menu, select earlier " expansion view ", select " showing statistics " again, make " histogram " can display pixel etc. statistical information;
The 3rd step: use " rectangular marquee " to choose the overall area of cross cut test, " pixel " value in the record " histogram ";
The 4th step: choose the zone of peeling off, " pixel " value in the record " histogram ";
The 5th step: peel off the area pixel value and can calculate the rate of peeling off, can determine the grade of adhesion again according to the cross cut test grade scale of filming divided by the pixel value of drawing lattice experiment overall area.
When selecting the overall area of cross cut test and peel off regional the time, whether " tolerance " value is set with actual conforming to according to selected figure
The method of utilizing Photoshop to measure rust area of coating is:
The first step: get the experiment model, be placed on the transparent plastic plate, model 100% ratio is scanned, and press gif form reservation image with the resolution of scanner with color mode 100-400dpi;
Second step: use " constituency " function of Photoshop, choose the monoblock model.During selection, whether " tolerance " value is set with actual conforming to according to selected figure.Ruler units in the information panel is made as cm, checks wide and high in " information " panel (W and H), the model total area can be obtained by long and high product, simultaneously " pixel " value in the record " histogram ";
The 3rd step: choose the zone of getting rusty, " pixel " value that record gets rusty and distinguishes;
The 4th step: utilize the area of (pixel value of the pixel value/monoblock model in the district of getting rusty) * monoblock model can get rust area.
Specify the paint film cross cut test below and survey the implementation step of coating adhesion:
The first step: get a paint film cross cut test test and test model, be placed on the transparent plastic plate, model 100% ratio is scanned, and press gif form reservation image with the resolution of scanner with color mode 300dpi;
Second step: open Photoshop software, the template image of this cross cut test is opened, carry out " image＞histogram " and access histogram window,, then carry out " window＞histogram " order if use is Photoshop CS version.After opening histogram window, click the little triangle button in the window upper right corner, from popup menu, select earlier " expansion view ", select " showing statistics " again, make the Histogram panel outward appearance can display pixel etc. statistical information;
The 3rd step: the overall area of choosing cross cut test.With " rectangular marquee ", check " pixel " value in " histogram " after choosing.The overall area pixel value of cross cut test is 27873 as can be known;
The 4th step: choose the zone of peeling off.Check " histogram " then, peeling off the area pixel value as can be known is 4500;
The 5th step: calculating the disbonding rate is (4500/27873) * 100%=16%, and test findings is poorer slightly than 2 grades as can be known according to the cross cut test standard of filming, and is 3 grades.
Embodiment 2
Photoshop not only can measure erose pixel value, the true area of all right measurement pattern.Specify the process of asking the iron plate rust area below:
At first: get the model that a paint film gets rusty, be placed on the transparent plastic plate, model 100% ratio is scanned, and press gif form reservation image with the resolution of scanner with color mode 300dpi;
Second step: open Photoshop software, this template image is opened, carry out " image＞histogram " and access histogram window,, then carry out " window＞histogram " order if use is Photoshop CS version.After opening histogram window, click the little triangle button in the window upper right corner, from popup menu, select earlier " expansion view ", select " showing statistics " again, make the Histogram panel outward appearance can display pixel etc. statistical information;
The 3rd step: use " evil spirit rod " selection function of Photoshop, choose the monoblock model, check wide and high in " information " panel (W and H), this moment, ruler units was cm, be respectively 12.14cm and 5.08cm, display result is consistent with actual model, and area is 12.14 * 5.08=61.67cm
2, check pixel value in " histogram " simultaneously, be 215400;
In the 4th step, " evil spirit rod " instrument that re-uses is chosen the zone of getting rusty, and checks the pixel value in the district of getting rusty, and is 22264;
In the 5th step, calculate.22264/215400×61.67＝6.37cm
2。Can get rust area is 6.37cm
2
Claims (2)
1, a kind of method of utilizing Photoshop to measure coating adhesion, it is characterized in that: with the adhesion test sample plate, carry out coloured image scanning with scanner, image is handled with Photoshop, utilize pixel than replacing area recently to estimate the adhesion grade, its concrete operations comprise following order and step:
A, get the experiment model, model is scanned in 100% ratio, and press gif form reservation image with the resolution of scanner with color mode 100-600dpi;
B, open image file with Photoshop, carry out " image＞histogram " and access histogram window, if what use is Photoshop CS version, then carry out " window＞histogram " order, after opening histogram window, click the little triangle button in the window upper right corner, from popup menu, select earlier by " expansion view ", select " showing statistics " item again, make histogram display pixel statistical information;
C, usefulness " rectangular marquee " are chosen the overall area of cross cut test, " pixel " value in the record " histogram ";
D, choose the zone of peeling off, " pixel " value in the record " histogram ";
E, peel off the area pixel value and go out to peel off rate, determine the grade of adhesion again according to the cross cut test grade scale of filming divided by a calculated for pixel values of drawing lattice experiment overall area.
2, according to the described method of utilizing Photoshop to measure coating adhesion of claim 1, it is characterized in that, ratio with the shared pixel value of rust area converses the absolute area of getting rusty, promptly use " constituency " function of Photoshop, choose the monoblock model, the ruler units in the information panel is made as cm, check wide and high in " information " panel (W and H), the model total area is obtained by long and high product, writes down this area, simultaneously pixel value in the record " histogram "; D chooses the zone of getting rusty set by step, the pixel value that record gets rusty and distinguishes; The pixel value in district or the pixel value * monoblock model total area of monoblock model get rust area with getting rusty.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506703A (en) * | 2011-10-11 | 2012-06-20 | 中国烟草总公司郑州烟草研究院 | Method for determining stamping area ratio of tipping paper used for tobacco |
| CN102565104A (en) * | 2011-12-21 | 2012-07-11 | 中国石油天然气股份有限公司 | Method for determining content of organic carbon of hydrocarbon source rock |
| CN102914620A (en) * | 2012-10-16 | 2013-02-06 | 红塔烟草(集团)有限责任公司 | Determination method for ration of reconstituted tobacco finished product |
| CN106950174A (en) * | 2017-03-07 | 2017-07-14 | 昆山市建设工程质量检测中心 | Insulation material bond area based on image processing techniques is than disbonded test method |
| CN107491298A (en) * | 2017-07-07 | 2017-12-19 | 武汉斗鱼网络科技有限公司 | A kind of button object automatic scanning method and system |
| CN107702755A (en) * | 2017-11-27 | 2018-02-16 | 宁夏广天夏电子科技有限公司 | Belt conveyor flow detector and detection method |
| CN108120402A (en) * | 2017-12-27 | 2018-06-05 | 广西壮族自治区林业科学研究院 | A kind of method that plant leaf area is measured based on Photoshop softwares |
| CN109900709A (en) * | 2019-03-27 | 2019-06-18 | 保定市立中车轮制造有限公司 | A method of it calculating adhesion of wheels testing coating and falls off area percentage |
| CN111811440A (en) * | 2020-07-20 | 2020-10-23 | 广州海关技术中心 | Method for calculating bonding area of automobile brake pad lining |
| TWI807624B (en) * | 2022-01-28 | 2023-07-01 | 友達光電股份有限公司 | Adhesion analysis method and system for t cross-cut tape test |
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2009
- 2009-09-08 CN CN200910067501A patent/CN101655489A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506703A (en) * | 2011-10-11 | 2012-06-20 | 中国烟草总公司郑州烟草研究院 | Method for determining stamping area ratio of tipping paper used for tobacco |
| CN102506703B (en) * | 2011-10-11 | 2014-02-12 | 中国烟草总公司郑州烟草研究院 | Method for determining stamping area ratio of tipping paper used for tobacco |
| CN102565104A (en) * | 2011-12-21 | 2012-07-11 | 中国石油天然气股份有限公司 | Method for determining content of organic carbon of hydrocarbon source rock |
| CN102914620A (en) * | 2012-10-16 | 2013-02-06 | 红塔烟草(集团)有限责任公司 | Determination method for ration of reconstituted tobacco finished product |
| CN106950174A (en) * | 2017-03-07 | 2017-07-14 | 昆山市建设工程质量检测中心 | Insulation material bond area based on image processing techniques is than disbonded test method |
| CN106950174B (en) * | 2017-03-07 | 2019-03-15 | 昆山市建设工程质量检测中心 | Thermal insulation material bond area based on image processing techniques is than disbonded test method |
| CN107491298A (en) * | 2017-07-07 | 2017-12-19 | 武汉斗鱼网络科技有限公司 | A kind of button object automatic scanning method and system |
| CN107702755A (en) * | 2017-11-27 | 2018-02-16 | 宁夏广天夏电子科技有限公司 | Belt conveyor flow detector and detection method |
| CN108120402A (en) * | 2017-12-27 | 2018-06-05 | 广西壮族自治区林业科学研究院 | A kind of method that plant leaf area is measured based on Photoshop softwares |
| CN109900709A (en) * | 2019-03-27 | 2019-06-18 | 保定市立中车轮制造有限公司 | A method of it calculating adhesion of wheels testing coating and falls off area percentage |
| CN111811440A (en) * | 2020-07-20 | 2020-10-23 | 广州海关技术中心 | Method for calculating bonding area of automobile brake pad lining |
| TWI807624B (en) * | 2022-01-28 | 2023-07-01 | 友達光電股份有限公司 | Adhesion analysis method and system for t cross-cut tape test |
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Application publication date: 20100224 |