CN102098532A - Gray scale test graphic card of digital mobile terminal video equipment and preparation technology thereof - Google Patents
Gray scale test graphic card of digital mobile terminal video equipment and preparation technology thereof Download PDFInfo
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- CN102098532A CN102098532A CN 201010594657 CN201010594657A CN102098532A CN 102098532 A CN102098532 A CN 102098532A CN 201010594657 CN201010594657 CN 201010594657 CN 201010594657 A CN201010594657 A CN 201010594657A CN 102098532 A CN102098532 A CN 102098532A
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Abstract
The invention relates to a gray scale test graphic card of digital mobile terminal video equipment and a preparation technology thereof, which can be suitable for testing shooting and light-sensitive devices. The gray scale test graphic card is structurally characterized in that same-size images composed of screen dots of different densities are connected into a whole. The color image gray scale problem of any picture can be quickly and accurately rectified by the gray scale test graphic card. In addition, the gray scale test graphic card has the advantages of simple manufacture flow, wide use range, low cost and stable quality, is convenient to operate and is suitable to popularize and apply.
Description
Technical field
The present invention relates to a kind of test pattern, relate in particular to a kind of digital mobile terminal video equipment GTG test pattern and preparation technology, be applicable to the test of digital photographing equipment performance.
Background technology
The GTG of digital camera is meant the resolution capability of digital camera to the grey of different spectral characteristics or effective spectral characteristic.Different digital cameras have different GTG recognition capabilities, promptly can tell the progression from white to black different intensity gray scale.It is many more generally to discern GTG progression, and its dynamic range is wide more, and level is also just abundant more clear more, and the photo of taking is also just good more; Its dynamic range is narrow more, the performance that the level of subject also just can not obtain more.
According to a large amount of vision test results, human eye is numb to the deviation of video mostly, and therefore a lot of people do not think what problem the color image of photochrome has, but really there is deviation in reality.We are the white balances of necessary first calibrator (-ter) unit to the prerequisite whether a width of cloth color photo can truly restore the accuracy of record color, the use test graph card is checked the photo of output then, but GTG test pattern of the prior art, the GTG of checking picture fast and accurately.
In addition, in the prior art, to the preparation technology of GTG test pattern, it is higher that ubiquity cost, the problem that rate of precision is lower.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of digital mobile terminal video equipment GTG test pattern is provided, solved in the prior art problem of checking picture color image gray scale rapidly and accurately, and the present invention is easy to use, steady quality.
Another object of the present invention is to provide a kind of preparation technology of mobile terminal video equipment GTG test pattern, flow process is simple, makes precisely, and cost is low.
Technical scheme of the present invention is as follows:
The big or small identical image that is made of the different site of density degree connects as one.
Described color of image increases progressively from shallow to deep step by step.
Described image is 20 steps.
All embody with the form of vector image the site in each ladder of described image.
In the described step, the luminous emissivity of A level (T%) is 89.1, and OD value (D) is 0.05, and gray value (H) is 255; 1 grade luminous emissivity (T%) is 70.8, and OD value (D) is 0.15, and gray value (H) is 242, and differential is 13; 2 grades luminous emissivity (T%) is 56.2, and OD value (D) is 0.25, and gray value (H) is 229, and differential is 13; 3 grades luminous emissivity (T%) is 44.7, and OD value (D) is 0.35, and gray value (H) is 221, and differential is 8; 4 grades luminous emissivity (T%) is 34.7, and OD value (D) is 0.45, and gray value (H) is 204, and differential is 17; 5 grades luminous emissivity (T%) is 28.2, and OD value (D) is 0.55, and gray value (H) is 189, and differential is 15; 6 grades luminous emissivity (T%) is 22.4, and OD value (D) is 0.65, and gray value (H) is 175, and differential is 14; The luminous emissivity of M level (T%) is 17.8, and OD value (D) is 0.75, and gray value (H) is 162, and differential is 13; 8 grades luminous emissivity (T%) is 14.1, and OD value (D) is 0.85, and gray value (H) is 148, and differential is 14; 9 grades luminous emissivity (T%) is 11.2, and OD value (D) is 0.95, and gray value (H) is 135, and differential is 13; 10 grades luminous emissivity (T%) is 8.9, and OD value (D) is 1.05, and gray value (H) is 121, and differential is 14; 11 grades luminous emissivity (T%) is 7.1, and OD value (D) is 1.15, and gray value (H) is 108, and differential is 13; 12 grades luminous emissivity (T%) is 5.6, and OD value (D) is 1.25, and gray value (H) is 94, and differential is 14; 13 grades luminous emissivity (T%) is 4.5, and OD value (D) is 1.35, and gray value (H) is 81, and differential is 13; 14 grades luminous emissivity (T%) is 3.5, and OD value (D) is 1.45, and gray value (H) is 67, and differential is 14; 15 grades luminous emissivity (T%) is 2.8, and OD value (D) is 1.55, and gray value (H) is 54, and differential is 13; The luminous emissivity of B level (T%) is 2.2, and OD value (D) is 1.65, and gray value (H) is 40, and differential is 14; 17 grades luminous emissivity (T%) is 1.8, and OD value (D) is 1.75, and gray value (H) is 27, and differential is 13; 18 grades luminous emissivity (T%) is 1.4, and OD value (D) is 1.85, and gray value (H) is 13, and differential is 14; 19 grades luminous emissivity (T%) is 1.1, and OD value (D) is 1.95, and gray value (H) is 0, and differential is 13.
Preparation technology of the present invention comprises the steps:
Figure is set: on PC, utilize image software that 20 figures that are connected that size is identical are set, the site value that each figure assignment 0-100% is different;
Printing: the site that density degree is different is transferred to it on forme by direct forme-producing system with the form of image, the site on the forme is transferred on the paper through printing machine again;
Test: the different gradient densities of transferring on the paper are tested the formation data, and the foundation that all changes as site assignment next time of test data each time is up to reaching design standard;
Finished product.
In the described print steps, when transferring to the site on the forme, keep indoor temperature 23
0C, humidity 40-50%.
In the described print steps, directly the site angle of sending a manuscript to the compositor of platemaking machine is 45
0, the line number is 200dpi.
In the described print steps, alcohol content is 7% in the Bailer liquid of printing machine.
In the described print steps, printing indoor temperature 23
0C, humidity 50%, print speed printing speed 8000 commentaries on classics/hour, the printing net-point amplification degree is 15%.
Advantageous effect of the present invention is as follows:
The present invention can correct any photo color image gray scale problem rapidly accurately.Simultaneously, manufacture craft flow process of the present invention is simple, makes precisely, and the scope of application is wide, and is easy to operate, and cost is lower, and steady quality is suitable for applying.
Principle of the present invention is as follows:
Variation with the different site of density degree shows different GTG density.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, A-19, color of image are increased progressively to black step by step by white, and wherein A is a white, and 19 is black.
Embodiment
The present invention in conjunction with specific embodiments, is described in detail as follows with reference to accompanying drawing.
Embodiment
The present invention selects the 250g of Daewoo art paper for use, and the big or small identical image that is made of the different site of density degree connects as one; Described image is 20 steps, and color of image increases progressively from shallow to deep step by step, and all embody with the form of vector image the site in each ladder of image.In the described step, the luminous emissivity of A level (T%) is 89.1, and OD value (D) is 0.05, and gray value (H) is 255; 1 grade luminous emissivity (T%) is 70.8, and OD value (D) is 0.15, and gray value (H) is 242, and differential is 13; 2 grades luminous emissivity (T%) is 56.2, and OD value (D) is 0.25, and gray value (H) is 229, and differential is 13; 3 grades luminous emissivity (T%) is 44.7, and OD value (D) is 0.35, and gray value (H) is 221, and differential is 8; 4 grades luminous emissivity (T%) is 34.7, and OD value (D) is 0.45, and gray value (H) is 204, and differential is 17; 5 grades luminous emissivity (T%) is 28.2, and OD value (D) is 0.55, and gray value (H) is 189, and differential is 15; 6 grades luminous emissivity (T%) is 22.4, and OD value (D) is 0.65, and gray value (H) is 175, and differential is 14; The luminous emissivity of M level (T%) is 17.8, and OD value (D) is 0.75, and gray value (H) is 162, and differential is 13; 8 grades luminous emissivity (T%) is 14.1, and OD value (D) is 0.85, and gray value (H) is 148, and differential is 14; 9 grades luminous emissivity (T%) is 11.2, and OD value (D) is 0.95, and gray value (H) is 135, and differential is 13; 10 grades luminous emissivity (T%) is 8.9, and OD value (D) is 1.05, and gray value (H) is 121, and differential is 14; 11 grades luminous emissivity (T%) is 7.1, and OD value (D) is 1.15, and gray value (H) is 108, and differential is 13; 12 grades luminous emissivity (T%) is 5.6, and OD value (D) is 1.25, and gray value (H) is 94, and differential is 14; 13 grades luminous emissivity (T%) is 4.5, and OD value (D) is 1.35, and gray value (H) is 81, and differential is 13; 14 grades luminous emissivity (T%) is 3.5, and OD value (D) is 1.45, and gray value (H) is 67, and differential is 14; 15 grades luminous emissivity (T%) is 2.8, and OD value (D) is 1.55, and gray value (H) is 54, and differential is 13; The luminous emissivity of B level (T%) is 2.2, and OD value (D) is 1.65, and gray value (H) is 40, and differential is 14; 17 grades luminous emissivity (T%) is 1.8, and OD value (D) is 1.75, and gray value (H) is 27, and differential is 13; 18 grades luminous emissivity (T%) is 1.4, and OD value (D) is 1.85, and gray value (H) is 13, and differential is 14; 19 grades luminous emissivity (T%) is 1.1, and OD value (D) is 1.95, and gray value (H) is 0, and differential is 13.
Preparation technology of the present invention comprises the steps:
Figure is set: utilizing the photoshop image software that 20 sizes are set on commercial PC is the identical figure that is connected of 20 * 30mm, the site value that each figure assignment 0-100% is different;
Printing: keep indoor temperature 23
0C, humidity 40-50%, the site that density degree is different is produced the direct laminator of Heidelberg E105 system with the form of image by Germany it is transferred on the forme, and directly the site angle of sending a manuscript to the compositor of platemaking machine is 45
0, the line number is 200dpi; Again Heidelberg CD102 four-color press being produced through Germany in the site on the forme transfers on the paper; Alcohol content is 7% in the Bailer liquid of printing machine; Printing indoor temperature 23
0C, humidity 50%, print speed printing speed 8000 commentaries on classics/hour, the printing net-point amplification degree is 15%.
Test: the different gradient densities of transferring on the paper are tested the formation data with densitometer, and the foundation that all changes as site assignment next time of test data each time is up to reaching design standard;
Finished product.
Protection scope of the present invention is not limit by specific embodiment, is as the criterion with claims.
The present invention entrusts metrology and measurement center Liaoning Institute of Metrology of northeast country to detect, and examining report is as follows.
The technical basis that the present invention detects is YD/T1607-2007 " digital mobile terminal image and specification requirement of video transmission characteristic and method of testing "; Testing environment is a temperature 20.5
0C, relative humidity 42%; Detecting employed capital equipment is the reflection density on-gauge plate, uncertainty/accuracy class/limits of error U=0.01, k=2.
The corresponding respectively reflection density value of each sequence number of testing result of the present invention is A=0.056; 1=0.158; 2=0.273; 3=0.372; 4=0.474; 5=0.576; 6=0.657; M=0.769; 8=0.858; 9=0.939; 10=1.062; 11=1.159; 12=1.244; 13=1.367; 14=1.471; 15=1.575; B=1.668; 17=1.744; 18=1.829; 19=1.900; Uncertainty U=0.046, k=2.
Claims (10)
1. digital mobile terminal video equipment GTG test pattern is characterized in that being connected as one by the big or small identical image that the different site of density degree constitutes.
2. digital mobile terminal video equipment GTG test pattern according to claim 1 is characterized in that described color of image increases progressively from shallow to deep step by step.
3. digital mobile terminal video equipment GTG test pattern according to claim 1 is characterized in that described image is 20 steps.
4. digital mobile terminal video equipment GTG test pattern according to claim 3 is characterized in that in the described step that the luminous emissivity of A level (T%) is 89.1, and OD value (D) is 0.05, and gray value (H) is 255; 1 grade luminous emissivity (T%) is 70.8, and OD value (D) is 0.15, and gray value (H) is 242, and differential is 13; 2 grades luminous emissivity (T%) is 56.2, and OD value (D) is 0.25, and gray value (H) is 229, and differential is 13; 3 grades luminous emissivity (T%) is 44.7, and OD value (D) is 0.35, and gray value (H) is 221, and differential is 8; 4 grades luminous emissivity (T%) is 34.7, and OD value (D) is 0.45, and gray value (H) is 204, and differential is 17; 5 grades luminous emissivity (T%) is 28.2, and OD value (D) is 0.55, and gray value (H) is 189, and differential is 15; 6 grades luminous emissivity (T%) is 22.4, and OD value (D) is 0.65, and gray value (H) is 175, and differential is 14; The luminous emissivity of M level (T%) is 17.8, and OD value (D) is 0.75, and gray value (H) is 162, and differential is 13; 8 grades luminous emissivity (T%) is 14.1, and OD value (D) is 0.85, and gray value (H) is 148, and differential is 14; 9 grades luminous emissivity (T%) is 11.2, and OD value (D) is 0.95, and gray value (H) is 135, and differential is 13; 10 grades luminous emissivity (T%) is 8.9, and OD value (D) is 1.05, and gray value (H) is 121, and differential is 14; 11 grades luminous emissivity (T%) is 7.1, and OD value (D) is 1.15, and gray value (H) is 108, and differential is 13; 12 grades luminous emissivity (T%) is 5.6, and OD value (D) is 1.25, and gray value (H) is 94, and differential is 14; 13 grades luminous emissivity (T%) is 4.5, and OD value (D) is 1.35, and gray value (H) is 81, and differential is 13; 14 grades luminous emissivity (T%) is 3.5, and OD value (D) is 1.45, and gray value (H) is 67, and differential is 14; 15 grades luminous emissivity (T%) is 2.8, and OD value (D) is 1.55, and gray value (H) is 54, and differential is 13; The luminous emissivity of B level (T%) is 2.2, and OD value (D) is 1.65, and gray value (H) is 40, and differential is 14; 17 grades luminous emissivity (T%) is 1.8, and OD value (D) is 1.75, and gray value (H) is 27, and differential is 13; 18 grades luminous emissivity (T%) is 1.4, and OD value (D) is 1.85, and gray value (H) is 13, and differential is 14; 19 grades luminous emissivity (T%) is 1.1, and OD value (D) is 1.95, and gray value (H) is 0, and differential is 13.
5. digital mobile terminal video equipment GTG test pattern according to claim 1 is characterized in that all embody with the form of vector image the site in each ladder of described image.
6. the preparation technology of the described digital mobile terminal video equipment of preparation claim 1 GTG test pattern is characterized in that comprising the steps,
Figure is set: on PC, utilize image software that 20 figures that are connected that size is identical are set, the site value that each figure assignment 0-100% is different;
Printing: the site that density degree is different is transferred to it on forme by direct forme-producing system with the form of image, the site on the forme is transferred on the paper through printing machine again;
Test: the different gradient densities of transferring on the paper are tested the formation data, and the foundation that all changes as site assignment next time of test data each time is up to reaching design standard;
Finished product.
7. the preparation technology of digital mobile terminal video equipment GTG test pattern according to claim 6 is characterized in that in the described print steps, when transferring to the site on the forme, keeps indoor temperature 23
0C, humidity 40-50%.
8. the preparation technology of digital mobile terminal video equipment GTG test pattern according to claim 6 is characterized in that in the described print steps, and directly the site angle of sending a manuscript to the compositor of platemaking machine is 45
0, the line number is 200dpi.
9. the preparation technology of digital mobile terminal video equipment GTG test pattern according to claim 6 is characterized in that in the described print steps that alcohol content is 7% in the Bailer liquid of printing machine.
10. the preparation technology of digital mobile terminal video equipment GTG test pattern according to claim 6 is characterized in that in the described print steps, printing indoor temperature 23
0C, humidity 50%, print speed printing speed 8000 commentaries on classics/hour, the printing net-point amplification degree is 15%.
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Cited By (2)
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| CN102802018A (en) * | 2012-08-28 | 2012-11-28 | 沈阳敏像科技有限公司 | Making method of color testing graphic card |
| CN112945867A (en) * | 2021-02-03 | 2021-06-11 | 中国测试技术研究院 | Reflection type gray scale test card measuring system and method |
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| CN102098532B (en) | 2012-10-17 |
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