WO2015018158A1 - 白平衡数据调整方法、装置与系统 - Google Patents
白平衡数据调整方法、装置与系统 Download PDFInfo
- Publication number
- WO2015018158A1 WO2015018158A1 PCT/CN2013/089399 CN2013089399W WO2015018158A1 WO 2015018158 A1 WO2015018158 A1 WO 2015018158A1 CN 2013089399 W CN2013089399 W CN 2013089399W WO 2015018158 A1 WO2015018158 A1 WO 2015018158A1
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- WO
- WIPO (PCT)
- Prior art keywords
- white balance
- balance data
- data
- adjustment
- target value
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000009471 action Effects 0.000 abstract description 3
- 230000010076 replication Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000033772 system development Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/001—Texturing; Colouring; Generation of texture or colour
Definitions
- the present invention relates to the field of LED televisions, and in particular, to a white balance data adjustment method, apparatus and system.
- LED TVs With the continuous maturity of LED technology, LED TVs have gradually begun to seize the market and gradually become the mainstream products in the TV market.
- the invention discloses a white balance data adjustment method, device and system, which are used for solving the problem of time waste caused by adjusting all the signal sources of the television set one by one in the prior art.
- a white balance data adjustment method is provided, and the following technical solutions are adopted:
- the white balance data adjustment method includes: reading first white balance data of the target signal source screen; performing a first adjustment operation, so that the first white balance data meets a preset target value, and generating second white balance data; Sending a second white balance data to a signal source channel other than the target signal source; performing a second adjustment operation, the second adjustment operation is a third of the signal source remote channel according to the second white balance data The white balance data is adjusted for the second time.
- the step of performing the first adjustment operation includes: comparing the preset target value with the first white balance data to obtain a comparison result; and the comparison result is the first white balance data Not matching the preset target value ⁇ , adjusting source data in the first white balance data, so that The target data in the first white balance data reaches a range of the preset target value.
- the adjusting the source data in the first white balance data comprises: comparing color coordinates in the first white balance data with the preset target value; wherein the color coordinates are smaller than the pre- When the target value is set, the red gain or the green gain in the source data is modified; the color coordinates are read again, and it is determined whether the color coordinate is within the range of the preset target value, and if not, the source data is modified. The blue gain in the medium until the color coordinates are adjusted to within the range of the preset target value.
- the second adjustment of the third white balance data of the signal source channel according to the second white balance data includes: automatically checking whether the second white balance data is copied to the signal source channel And if there is a channel that is not successfully copied, copying the second white balance data to the channel that is not successfully copied.
- a white balance data adjusting apparatus is provided, and the following technical solutions are adopted:
- the white balance data adjusting device includes: a reading module, configured to read first white balance data of the target signal source screen; and a first executing module, configured to perform a first adjusting operation, so that the first white balance data conforms to the preset a second white balance data is generated, a sending module, configured to send the second white balance data to a signal source channel other than the target signal source, and a second execution module, to perform a second adjustment operation,
- the second adjusting operation is to perform a second adjustment on the third white balance data of the signal source channel according to the second white balance data.
- the first execution module includes: a first comparison module, configured to compare the preset target value with the first white balance data to obtain a comparison result; When the comparison result is that the first white balance data does not meet the preset target value, adjusting source data in the first white balance data, so that target data in the first white balance data reaches Within the range of the preset target value.
- the first adjustment module includes: a second comparison module, configured to compare a color coordinate in the first white balance data with the preset target value; a first modification module, configured to Modifying the red gain or the green gain in the source data when the color coordinate is smaller than the preset target value; the second modifying module is configured to read the color coordinate again, and determine whether the color coordinate is in the preset Within the range of the target value, if not, the blue gain in the source data is modified until the color coordinates are adjusted to within the range of the preset target value.
- the second execution module includes: an automatic check module, configured to automatically check whether the second white balance data is copied to the signal source channel, and if there is a channel that is not successfully copied, copying the second white Balance the data to the channel that was not successfully copied.
- a white balance data adjustment system is provided, and the following technical solutions are adopted:
- the white balance data adjustment system comprises: a signal generating device, connected to the television, configured to control the television to give a picture of the target signal source according to the preset pure whiteness; and a color analyzing device connected to the television set, according to the picture Reading white balance data of the target signal source; white balance data adjusting device, respectively connected to the signal generating device, the color analyzing device, and the television, for pairing the white balance data according to a preset target value Performing adjustment, and transmitting the adjusted white balance data to a signal source remote channel other than the current channel, and performing white balance data adjustment on the signal source remote channel according to the white balance data.
- the white balance data adjusting device is further configured to: send an indication to the signal generating device to give the target signal source screen, where the indication includes the preset target value.
- the white balance data adjustment system further includes: an adapter board, the first end is connected to the COM interface of the white balance data adjusting device via the COM line, and the second end is connected to the TV set by the USB cable USB interface.
- the invention adjusts the single-channel white balance data, and further performs the data copying action, so that the white balance data of all the signal sources is consistent, which is significantly improved compared with the traditional multi-way debugging system, and the production efficiency of the production line is greatly improved;
- the white balance data adjustment system utilizes the processed VGA signal line, which can complete the video signal transmission work connecting the TV set and the signal generator, and can complete the serial communication data transmission with the PC, the television, and the signal generator. Work, which reduces the total system cost in hardware connection, and the whole system is a closed-loop system with high data transmission accuracy.
- 1 is a main flowchart of a method for adjusting white balance data according to an embodiment of the present invention
- FIG. 2 is a specific flowchart of a method for adjusting white balance data according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a white balance data adjusting apparatus according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a white balance data adjustment system according to an embodiment of the present invention.
- FIG. 1 is a main flowchart of a method for adjusting white balance data according to an embodiment of the present invention.
- the white balance data adjustment method includes:
- step S101 the target signal source is automatically switched by the television to the signal source to be adjusted, and the signal generator gives a screen specifying the preset whiteness, and the color coordinates of the picture are read by the color analyzer (x, y), color temperature T, brightness L V , color difference ⁇ ⁇ .
- the preset target value in step S103 is a given color temperature and color coordinate (x, y) value.
- Step S105 Comparing the read white balance data with the preset target value, if the white balance data is within the preset target value range, performing step S105; if the white balance data is not within the preset target value range, then the white balance The data is adjusted.
- Steps S105 and S107 are to perform a copying operation, and send the adjusted white balance data to all signal source channels except the current remote channel, and perform the all-signal remote channel according to the white balance data.
- White balance data adjustment is to perform a copying operation, and send the adjusted white balance data to all signal source channels except the current remote channel, and perform the all-signal remote channel according to the white balance data.
- the above technical solution of the embodiment is mainly based on single channel white balance data adjustment, and then copying the adjusted white balance data to all signal source channels except the current channel by copy operation, and then for all signal sources White balance data adjustment. This greatly improves the adjustment efficiency and saves The time for white balance data adjustment.
- FIG. 2 is a specific flowchart of a method for adjusting white balance data according to an embodiment of the present invention.
- this embodiment cooperates with hardware operations to specifically specify a specific process of the white balance data adjustment method.
- Step S20h Complete the hardware connection and set up the signal generator and processor.
- Step S202 The television, the signal generator, and the color analyzer complete the power-on and initialization operations.
- the above two steps are mainly to set up the matching hardware, as well as the hardware parameters, to prepare for the white balance data adjustment method.
- the processor in step S201 (for example, a personal computer PC) serves as a carrier for implementing the white balance data adjustment method.
- Step S203 Select a corresponding television set, a corresponding signal generator, and run a white balance data adjustment method.
- the configuration file is copied to the corresponding file directory of the PC.
- the configuration file is provided at the initial stage of system development.
- the initial white balance data of the experimental prototype is adjusted according to different models to ensure that the system adjustment speed is accelerated during mass production.
- the configuration file will import the initial operating parameter values required by the system, including the parameters of the COM port, the baud rate of the signal generator and the TV, the error range of the white balance adjustment, the white balance color temperature and the color coordinates (x, y).
- Values, the factory brightness and maximum brightness of the TV, etc. also include the above-mentioned preset target value, that is, the given color temperature and color coordinate (x, y) value, select the corresponding model and corresponding signal in the adjustment software. generator.
- Step S204 Collect (x, y), T, Lv, Auv of the television.
- ( x , y) refers to color coordinates
- T refers to color temperature
- ! ⁇ means brightness
- ⁇ means color difference
- the television automatically switches to the signal source to be adjusted, and the signal generator gives a specified whiteness picture, and the color coordinates (x, y), color temperature T, brightness Lv, and color difference of the television are read by the color analyzer. ⁇ .
- Step S205 Compare with the color coordinate values preset by the television.
- Step S206 Determine whether it is within the specification.
- step S208 determines whether the read white balance data is within the predetermined target value range. If yes, the process proceeds to step S208, and if not, step S207 is performed.
- VGA Video Graphic Ar: ray, display drawing array
- R GAIN, G GAIN, and B GAIN are 128.
- the system automatically completes R GAIN, that is, the red gain plus 1 operation in the white balance data, and sends the adjusted R GAIN data to the TV and reads the color coordinate X value again, such as R GAIN or red.
- the gain is added to the maximum value and is still not adjusted to the color coordinate.
- G GAIN that is, the green gain is added to the maximum value and still cannot be adjusted to the range of color coordinates yo-0, 297.
- B GAIN which is the blue gain minus 1 operation in the white balance data.
- the B GAIN data transmitted to the television set and adjusted color coordinate y value read again until it meets the chromaticity coordinate y.
- the PC software automatically sends the adjusted white balance data to other TV channels except the VGA channel. At this time, the standard color temperature of the TV VGA channel 9300 has been adjusted.
- Step S208 Perform all the source copying actions except the adjustment signal source.
- the white balance adjustment software automatically saves the Gain and Offset values that have met the color temperature requirements, and automatically completes the copying operation for all other sources except the adjusted signal source.
- Step S209 Whether the copy is correct, if yes, the process returns to step S203 to perform adjustment on the next television; if not, returns to step S208.
- the program automatically checks. If the copy is not successful, re-execute step S205. Check again and complete the white balance adjustment of a TV set after success.
- the above mentioned copying process can be automatic copying, which facilitates operation simplification and process optimization.
- VGA display graphics array interface
- HDMI high definition multimedia interface
- YPBPR color difference component interface
- AV audio and video interface
- the system only needs to adjust the VGA channel, and then complete the white balance data adjustment of other channels through the copying operation, thereby completing the white balance data adjustment of all the channels of one television, thus adjusting a television
- the machine's white balance data time only requires a traditional system to adjust a quarter of the total time of a TV set.
- FIG. 3 is a schematic structural diagram of a white balance data adjusting apparatus according to an embodiment of the present invention.
- the white balance data adjustment apparatus includes: a reading module 30, configured to read first white balance data of a target signal source screen; a first execution module 32, configured to perform a first adjustment operation, so that The first white balance data meets the preset target value, and generates second white balance data; the sending module 34 is configured to send the second white balance data to a signal source channel other than the target signal source; 36.
- the second adjusting operation is performed, and the second adjusting operation is to perform a second adjustment on the third white balance data of the signal source channel according to the second white balance data.
- the first execution module 32 includes: a first comparison module (not shown), and comparing the preset target value with the first white balance data to obtain a comparison result; An adjustment module (not shown), configured to adjust source data in the first white balance data when the comparison result is that the first white balance data does not meet the preset target value, so that The target data in the first white balance data reaches a range of the preset target value.
- the first adjustment module includes: a second comparison module (not shown), configured to perform color coordinates in the first white balance data and the preset target value Comparing; a first modification module (not shown), configured to modify a red gain or a green gain in the source data when the color coordinate is smaller than the preset target value; a second modification module (not shown in the figure) And determining to read the color coordinate again, determining whether the color coordinate is within a range of the preset target value, and if not, modifying a blue gain in the source data until the color coordinate is adjusted Within the range of the preset target value.
- the second execution module 36 includes: an automatic inspection module (not shown), Automatically checking whether the second white balance data is copied to the signal source channel, and if there is a channel that has not been successfully copied, copying the second white balance data to the channel that is not successfully copied.
- an automatic inspection module (not shown)
- Automatically checking whether the second white balance data is copied to the signal source channel and if there is a channel that has not been successfully copied, copying the second white balance data to the channel that is not successfully copied.
- FIG. 4 is a schematic structural diagram of a white balance data adjustment system according to an embodiment of the present invention.
- the white balance data adjustment system mainly includes a signal generator 42, a color analyzer 46, and a white balance data adjusting device 44, a PC and a computer set 40 for installing the white balance data adjusting device 44, and a color analyzer 46.
- the signal generator 42 is connected by a COM to USB cable, a USB cable, and a COM cable.
- the television 40, the color analyzer 46, and the signal generator 42 described above are all controlled by the white balance adjustment software.
- the white balance data adjusting device 44 may be the white balance data adjusting device (shown in FIG. 3); for adjusting the white balance data according to a preset target value, and adjusting the adjusted white balance data Sending to a signal source channel other than the current channel (ie, the target signal source or the target signal source channel), and performing white balance data adjustment on the signal source remote channel according to the white balance data.
- the adjusted white balance data is transmitted to all signal source channels except the current channel.
- the hardware connection of the system of the invention is obviously improved compared with the traditional white balance multi-channel debugging system.
- the traditional white balance multi-way debugging connects the VGA, HDMI, YPBPR and AV channels of the television to the corresponding interfaces of the signal generator in the hardware connection.
- the above four channels must all be connected to the TV before the white balance adjustment of the TV can be performed, which not only brings a lot of inconvenience to the operator.
- a lot of time is wasted in plugging and unplugging the signal lines connected by the above four channels, and the production efficiency of the white balance adjustment process of the production line television is greatly reduced.
- the white balance data adjusting device further comprises: sending an indication to the signal generating device to the target signal source screen, wherein the indication includes the preset target value.
- the white balance data adjustment system further includes: an adapter board (not shown), the first end is connected to the COM interface of the white balance data adjustment device by a COM line, and the second end is connected to the USB line. Connect the USB interface of the TV.
- the adapter board can not only complete the video signal transmission work connecting the TV set and the signal generator, but also complete the serial port remote data transmission work with the PC, the television set and the signal generator, and reduce the total system cost in the hardware connection.
- the invention breaks through the limitation of the traditional white balance multi-channel adjustment in the hardware connection, and only needs to connect a processed VGA signal line for connecting the television, the signal generator, the PC, through the PC end software and the television software.
- the data transfer completes the automatic assignment operation to other channels of the TV, thereby completing the white balance adjustment of the television.
- the present invention mainly optimizes the following two times: 1. The time between the production line operator plugging and unplugging the signal line; 2.
- the system of the present invention is unique in that it provides an adapter board, which can complete the video signal transmission work connecting the television and the signal generator, and can complete the serial communication with the PC, the television, and the signal generator.
- the data transmission work reduces the total system cost in the hardware connection; in the adjustment time, the traditional multi-channel debugging system has been significantly improved, and the production efficiency of the production line is greatly improved; the whole system is a closed-loop system, and the data transmission accuracy rate high.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/361,342 US9288460B2 (en) | 2013-08-08 | 2013-12-13 | Method, apparatus, and system for adjusting white balance data |
Applications Claiming Priority (2)
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CN201310343954.8A CN103414905B (zh) | 2013-08-08 | 2013-08-08 | 白平衡数据调整方法、装置与系统 |
CN201310343954.8 | 2013-08-08 |
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WO2015018158A1 true WO2015018158A1 (zh) | 2015-02-12 |
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PCT/CN2013/089399 WO2015018158A1 (zh) | 2013-08-08 | 2013-12-13 | 白平衡数据调整方法、装置与系统 |
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US (1) | US9288460B2 (zh) |
CN (1) | CN103414905B (zh) |
WO (1) | WO2015018158A1 (zh) |
Cited By (1)
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CN112261397A (zh) * | 2020-10-19 | 2021-01-22 | 深圳Tcl数字技术有限公司 | 白平衡验证方法、终端设备及可读存储介质 |
Families Citing this family (12)
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CN103414905B (zh) * | 2013-08-08 | 2015-07-01 | 京东方科技集团股份有限公司 | 白平衡数据调整方法、装置与系统 |
EP3157243B1 (en) * | 2014-06-10 | 2024-07-03 | Panasonic Intellectual Property Management Co., Ltd. | Conversion method and conversion device |
CN104093012B (zh) * | 2014-06-27 | 2017-06-06 | 北京京东方视讯科技有限公司 | 一种白平衡参数调整赋值方法、实现方法及相关装置 |
JP6416576B2 (ja) * | 2014-10-03 | 2018-10-31 | Eizo株式会社 | 表示装置の色温度設定方法、表示システム、表示装置の色温度設定プログラム、表示装置の色温度決定方法 |
CN105141934B (zh) * | 2015-09-25 | 2017-07-25 | 深圳Tcl数字技术有限公司 | 模数信号补偿的方法及装置 |
JP6234501B2 (ja) * | 2016-03-16 | 2017-11-22 | シャープ株式会社 | 表示装置、テレビジョン受像機、表示方法、制御プログラム、および記録媒体 |
CN106652962B (zh) * | 2017-02-15 | 2019-09-10 | 深圳市华星光电技术有限公司 | 四色显示器的白平衡方法 |
CN107454393B (zh) * | 2017-09-22 | 2019-12-27 | 上海帆声图像科技有限公司 | 电视机白平衡参数设置方法 |
CN108419067B (zh) * | 2018-06-05 | 2020-02-04 | 上海小蚁科技有限公司 | 白平衡参数记录、调整方法及装置、存储介质、终端、相机 |
CN112653880B (zh) * | 2020-11-11 | 2023-06-02 | 南京熊猫电子股份有限公司 | 一种兼容型自动白平衡调整系统及装置和调整方法 |
CN112492191B (zh) * | 2020-12-18 | 2022-02-18 | 浙江大华技术股份有限公司 | 一种图像采集方法、装置、设备及介质 |
CN113270063B (zh) * | 2021-05-21 | 2023-02-28 | 北京京东方显示技术有限公司 | 色坐标校准方法、系统、处理设备和计算机存储介质 |
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CN103414905B (zh) | 2015-07-01 |
US20150222866A1 (en) | 2015-08-06 |
CN103414905A (zh) | 2013-11-27 |
US9288460B2 (en) | 2016-03-15 |
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