CN104486609A - Color temperature and GAMMA curve tuning and measuring integrated machine-by-machine correction flow - Google Patents
Color temperature and GAMMA curve tuning and measuring integrated machine-by-machine correction flow Download PDFInfo
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- CN104486609A CN104486609A CN201410844672.0A CN201410844672A CN104486609A CN 104486609 A CN104486609 A CN 104486609A CN 201410844672 A CN201410844672 A CN 201410844672A CN 104486609 A CN104486609 A CN 104486609A
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Abstract
The invention discloses a color temperature and GAMMA curve tuning and measuring integrated machine-by-machine correction flow. Displayers, a color analyzer and a color processing scaler chip are connected on a color temperature unification subsystem. The flow comprises the steps that firstly, the color processing scaler chip, the color analyzer, the displayers and an upper computer are connected through a serial port, the color analyzer collects brightness values of red, green, blue and white 0-255 color blocks and values of color coordinates from the front end and transmits the brightness values of the red, green, blue and white 0-255 color blocks and the values of the color coordinates to the upper computer, and the upper computer summarizes the numerical values into a table after obtaining the numerical values, conducts GAMMA correction on the input values, and stores the obtained display lookup table. According to the color temperature and GAMMA curve tuning and measuring integrated machine-by-machine correction flow, all color points are collected, and the display search table is corrected, so that the uniformity correction of a color temperature and brightness curve of each displayer is achieved, differences between the machines are eliminated, and the complete uniformity of the color temperatures of the displayers is achieved.
Description
Technical field:
The present invention relates to a kind of colour temperature integrated with GAMMA curve commissioning by platform correcting process.
Background technology:
The display of specialty is as medical display, for display of medical image, in order to need to correct the colour temperature of display by actual response image information, the inconsistent meeting of medical display colour temperature causes display effect different, affect the display effect of display thus cause the mistaken diagnosis of diagnosis or fail to pinpoint a disease in diagnosis, therefore ensureing that the consistency of colour temperature is an important technology characteristic of medical display.
And existing medical display is generally adopt unitized method, the LUT table that same of burning is fixing in the chip of all displays, a color dot is corrected, be not for each display, make LUT table by platform to correct 0-255 color dot (all colours is become by red, green, blue three colour cell, forms a three-dimensional coordinate respectively represent with 0-255 numerical value).With regard to existing technical foundation, (all colours is become by red, green, blue three colour cell can not to go to correct all color dot of 0-255, form a three-dimensional coordinate with 0-255 numerical value respectively to represent), even if correct and also can not do integrated correcting process, namely there has been flow process and also can not carry out correcting by platform for each machine.
Summary of the invention:
The invention provides a kind of colour temperature can guaranteeing that each display ensures that colour temperature consistency operates over time and space integrated with GAMMA curve commissioning by platform correcting process.
The present invention adopts following technical scheme: a kind of colour temperature is integrated with GAMMA curve commissioning by platform correcting process, described colour temperature unification system display, color analysis instrument is connected with colors countenance scaler chip, first by serial ports by colors countenance scaler chip, color analysis instrument, display and host computer are connected, color analysis instrument from front end by red, green, blue, the white brightness value of 0-255 color lump and the value of hue coordinate gather out and pass to host computer by serial ports, host computer is aggregated into table after obtaining numerical value, Gamma correction is carried out to the value of input, and preserve the display look-up table obtained, it comprises the steps
The first step: the curve file of using CA310 color analysis instrument reading displayed screen itself;
Second step: use color analysis instrument by hue coordinate collection and by Serial Port Transmission to host computer;
3rd step: host computer is corrected by RGB, revises the LUT table of 5500k 6500k 8000k 9300k 10000k;
4th step: the hexadecimal LUT table after host computer conversion is burnt in scaler chip ROM;
5th step, different options according to menu, transferred the curve file in ROM by Scaler;
6th step, colors countenance scaler chip realize checking colors according to table the correction of gentle Gamma, effect are shown over the display.
The present invention has following beneficial effect: colour temperature of the present invention integrated with GAMMA curve commissioning by platform correcting process by gathering all colours point and correcting showing look-up table, achieve the Concordance to each display color temperature and brightness curve, eliminate the difference between each machine, complete full consistency with what realize display color temperature.
Accompanying drawing illustrates:
Fig. 1 is that colour temperature of the present invention is integrated with GAMMA curve commissioning by platform correcting process figure.
Fig. 2 is the curve file of itself using CA310 color analysis instrument reading displayed screen.
Fig. 3 is curve and uncorrected curve comparison after WHITE TONE Concordance.
Embodiment:
Please refer to shown in Fig. 1 to Fig. 3, colour temperature unification of the present invention system display, color analysis instrument is connected with colors countenance scaler chip, wherein first by serial ports by colors countenance scaler chip, color analysis instrument, display and host computer are connected, color analysis instrument from front end by red, green, blue, the white brightness value of 0-255 color lump and the value of hue coordinate gather out and pass to host computer by serial ports, host computer is aggregated into table after obtaining numerical value, Gamma correction is carried out to the value of input, and preserve the display look-up table obtained, color temperature correction is carried out again based on table now, table is now exactly the table that we need.This display look-up table also needs host computer to carry out hexadecimal conversion, and after having changed, table is burnt to color analysis instrument, effect is presented at display terminal by color analysis instrument.The present invention can correct every platform display, timing is carried out to a display, second display is aging, detect at once after the software test of First display host computer completes, carry out the correction of a display below, the colour temperature that so just can complete display corrects by platform simultaneously.
Colour temperature of the present invention is integrated with GAMMA curve commissioning to be comprised the steps: by platform correcting process
The first step: the curve file of using CA310 color analysis instrument reading displayed screen itself;
Second step: use color analysis instrument by hue coordinate collection and by Serial Port Transmission to host computer;
3rd step: host computer is corrected by RGB, revises the LUT table of 5500k 6500k 8000k 9300k 10000k;
4th step: the hexadecimal LUT table after host computer conversion is burnt in scaler chip ROM;
5th step, different options according to menu, transferred the curve file in ROM by Scaler;
6th step, colors countenance scaler chip realize checking colors according to table the correction of gentle Gamma, effect are shown over the display.
Colour temperature of the present invention is integrated with GAMMA curve commissioning to be processed each display by a kind of a kind of correcting process realized by display, color analysis instrument, host computer and colors countenance scaler chip by platform correcting process, thus ensure that the consistency of every platform display color temperature and GAMMA curve, to ensure the harmony of white balance correction (correction of tone), make all machines of dispatching from the factory in time with spatially ensure that display effect is consistent.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (1)
1. a colour temperature is integrated with GAMMA curve commissioning by platform correcting process, it is characterized in that: described colour temperature unification system display, color analysis instrument is connected with colors countenance scaler chip, first by serial ports by colors countenance scaler chip, color analysis instrument, display and host computer are connected, color analysis instrument from front end by red, green, blue, the white brightness value of 0-255 color lump and the value of hue coordinate gather out and pass to host computer by serial ports, host computer is aggregated into table after obtaining numerical value, Gamma correction is carried out to the value of input, and preserve the display look-up table obtained, it comprises the steps
The first step: the curve file of using CA310 color analysis instrument reading displayed screen itself;
Second step: use color analysis instrument by hue coordinate collection and by Serial Port Transmission to host computer;
3rd step: host computer is corrected by RGB, revises the LUT table of 5500k 6500k 8000k 9300k 10000k;
0x00,0x23,0x40,0x22,0x40,0x22,0x40,0x23,0x40,0x23,
0x40,0x20,0x40,0x23,0x40,0x22,0x40,0x24,0x40,0x30,
0x40,0x28,0x40,0x3F,0x26,0x40,0x28,0x00,0x26,0x00,
0x25,0x00,0x40,0x20,0x00,0x2B,0x00,0x3F,0x27,0x00,
0x20,0x40,0x00,0x25,0x00,0x40,0x00,0x25,0x00,0x25,
0x00,0x26,0x00,0x28,0x40,0x23,0x40,0x24,0x00,0x20,
0x00,0x21,0x00,0x20,0x00,0x20,0x00,0x20,
4th step: the hexadecimal LUT table after host computer conversion is burnt in scaler chip ROM;
5th step, different options according to menu, transferred the curve file in ROM by Scaler;
6th step, colors countenance scaler chip realize checking colors according to table the correction of gentle Gamma, effect are shown over the display.
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Cited By (7)
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| CN104809974A (en) * | 2015-04-22 | 2015-07-29 | 信利（惠州）智能显示有限公司 | Automatic gamma and white balance correction method and device for display device |
| CN105872511A (en) * | 2016-02-05 | 2016-08-17 | 四川长虹电器股份有限公司 | Method for improving color temperature consistency of flat panel television through multiple gamma curves |
| CN106297631A (en) * | 2016-08-30 | 2017-01-04 | 南京巨鲨显示科技有限公司 | A kind of display with curve data error correction and error correction method thereof |
| CN106507081A (en) * | 2016-10-12 | 2017-03-15 | 成都西纬科技有限公司 | A kind of image processing method and device |
| CN106604008A (en) * | 2016-11-17 | 2017-04-26 | 深圳Tcl新技术有限公司 | Method and device for adjusting image quality effect of display |
| CN110534071A (en) * | 2019-07-19 | 2019-12-03 | 南京巨鲨显示科技有限公司 | A kind of display color calibration system neural network based and method |
| CN112802418A (en) * | 2019-11-13 | 2021-05-14 | 瑞昱半导体股份有限公司 | Panel color temperature matching correction method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106297631A (en) * | 2016-08-30 | 2017-01-04 | 南京巨鲨显示科技有限公司 | A kind of display with curve data error correction and error correction method thereof |
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| CN110534071A (en) * | 2019-07-19 | 2019-12-03 | 南京巨鲨显示科技有限公司 | A kind of display color calibration system neural network based and method |
| CN110534071B (en) * | 2019-07-19 | 2020-09-18 | 南京巨鲨显示科技有限公司 | Display color calibration system and method based on neural network |
| CN112802418A (en) * | 2019-11-13 | 2021-05-14 | 瑞昱半导体股份有限公司 | Panel color temperature matching correction method and system |
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