CN110430409A - A kind of automatic adjustment method of LCD TV white balance and system - Google Patents
A kind of automatic adjustment method of LCD TV white balance and system Download PDFInfo
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- CN110430409A CN110430409A CN201910554256.XA CN201910554256A CN110430409A CN 110430409 A CN110430409 A CN 110430409A CN 201910554256 A CN201910554256 A CN 201910554256A CN 110430409 A CN110430409 A CN 110430409A
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- lcd
- color temperature
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- 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
Abstract
The invention discloses a kind of automatic adjustment method of LCD TV white balance and systems comprising: the color temperature parameters under the current color temperature mode of LCD TV are obtained, and determine the preset color temperature parameter of LCD TV according to preset white balance parameter；The difference of the color temperature parameters Yu the preset color temperature parameter is calculated, and judges the difference whether in deviation range；It when the difference is not in deviation range, is adjusted according to three primary colours component value of the difference to the LCD TV, to adjust the color temperature parameters under the current color temperature mode;The white balance parameter of the LCD TV is debugged according to the color temperature parameters under each color temperature mode after adjusting.The present invention realizes the debugging of LCD TV factory automatic white balance, makes the white balance parameter of every TV all in optimum state, improves debugging efficiency.
Description
Technical field
The present invention relates to ntelligent television technolog field, in particular to the automatic adjustment method of a kind of LCD TV white balance and it is
System.
Background technique
LCD TV white balance debugging is the important content in image quality debugging.The white balance parameter of LCD TV at present, by
After image quality engineer debugs well on a model machine, all machines all same set of white balance parameters of batch burning, factory's producing line
Will not white balance data be debugged and be modified again.
In actual application, due to LCD TV mould group ontological existence colour temperature difference, all machines is caused to share one
The method for covering white balance data can make part machine white balance deviation excessive or even beyond claimed range, cause television set aobvious
Show that effect is bad, electric performance test data are larger from standard value also deviation.
Thus the prior art could be improved and improve.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiencies of the prior art, providing a kind of LCD TV white balance
Automatic adjustment method and system share a set of white balance data to solve all machines in the prior art, can make part machine
White balance deviation is excessive or even exceeds claimed range, the problem for causing television set display effect bad.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is as follows:
A kind of automatic adjustment method of LCD TV white balance comprising:
The color temperature parameters under the current color temperature mode of LCD TV are obtained, and LCD TV is determined according to preset white balance parameter
Preset color temperature parameter；
The difference of the color temperature parameters Yu the preset color temperature parameter is calculated, and judges the difference whether in deviation range；
When the difference is not in deviation range, adjusted according to three primary colours component value of the difference to the LCD TV
Section, to adjust the color temperature parameters under the current color temperature mode;
The white balance parameter of the LCD TV is debugged according to the color temperature parameters under each color temperature mode after adjusting.
The automatic adjustment method of LCD TV white balance, wherein under the current color temperature mode of the acquisition LCD TV
Color temperature parameters, and include: before the preset color temperature parameter for determining LCD TV according to preset white balance parameter
The average value of the white balance parameter of several LCD TVs is obtained, and the LCD TV is set as according to the average value
Preset white balance parameter, wherein several LCD TVs are located at before the LCD TV according to debugging sequence.
The automatic adjustment method of LCD TV white balance, wherein under the current color temperature mode of the acquisition LCD TV
Color temperature parameters specifically include:
Color temperature parameters under the current color temperature mode of LCD TV are obtained using analyzer, wherein the color temperature parameters include u, v color
The corresponding u of coordinate system, v coordinate value.
The automatic adjustment method of LCD TV white balance, which is characterized in that described to calculate the color temperature parameters and preset
The difference of color temperature parameters, and judge whether the difference specifically includes in deviation range:
Calculate the difference of the color temperature parameters Yu preset color temperature parameter；
The difference is compared with preset color temperature deviation, to determine the difference of the color temperature parameters Yu preset color temperature parameter
Whether in deviation range.
The automatic adjustment method of LCD TV white balance, wherein when the difference is not in deviation range, according to institute
It states difference the three primary colours component value of the LCD TV is adjusted, to adjust the color temperature parameters under the current color temperature mode
Specifically:
When the difference is not in deviation range, the corresponding white balance parameter of the current color temperature mode is searched；
LCD TV three primary colours component value is adjusted according to the white balance parameter, to adjust under the current color temperature mode
Color temperature parameters.
The automatic adjustment method of LCD TV white balance, wherein it is described according to the white balance parameter to LCD TV
Three primary colours component value is adjusted specifically: LCD TV three primary colours component value is adjusted according to the white balance parameter,
And it controls at least one component value in three primary colours component value and is in preset value.
The automatic adjustment method of LCD TV white balance, wherein further include:
Record and save the white balance parameter of LCD TV.
The automatic adjustment method of LCD TV white balance, wherein the color temperature mode of the LCD TV includes beautiful, mark
It is quasi- and naturally, and the color temperature parameters under each color temperature mode are adjusted respectively.
A kind of computer readable storage medium, wherein the computer-readable recording medium storage has one or more
Program, one or more of programs can be executed by one or more processor, to realize described in any one as above
Step in the automatic adjustment method of LCD TV white balance.
A kind of LCD TV white balance automatic debugging system comprising: LCD TV and host computer, the host computer,
The LCD TV and the host computer communicate；The host computer includes processor and memory and communication bus;The storage
The computer-readable program that can be executed by the processor is stored on device；
The communication bus realizes the connection communication between processor and memory；
The processor realizes LCD TV white balance described in any one as above certainly when executing the computer-readable program
Step in dynamic adjustment method.
The utility model has the advantages that compared with prior art, the present invention provides a kind of automatic adjustment method of LCD TV white balance and
System, which comprises obtain the color temperature parameters under the current color temperature mode of LCD TV, and according to preset white balance parameter
Determine the preset color temperature parameter of LCD TV；The difference of the color temperature parameters Yu the preset color temperature parameter is calculated, and judges institute
Difference is stated whether in deviation range；When the difference is not in deviation range, according to the difference to the LCD TV
Three primary colours component value be adjusted, to adjust the color temperature parameters under the current color temperature mode;According to each colour temperature after adjusting
Color temperature parameters under mode debug the white balance parameter of the LCD TV.The present invention realizes LCD TV factory certainly
Dynamic white balance debugging, makes the white balance parameter of every TV all in optimum state, improves debugging efficiency.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the automatic adjustment method preferred embodiment of LCD TV white balance provided by the invention.
Fig. 2 is that the present invention is based on the automatic debugging software flow diagrams of the LCD TV white balance of CA310.
Fig. 3 is step S200 in a kind of automatic adjustment method preferred embodiment of LCD TV white balance provided by the invention
Flow chart.
Fig. 4 is step S300 in a kind of automatic adjustment method preferred embodiment of LCD TV white balance provided by the invention
Flow chart.
Fig. 5 is a kind of structural principle of LCD TV white balance automatic debugging system preferred embodiment provided by the invention
Figure.
Specific embodiment
The present invention provides a kind of automatic adjustment method of LCD TV white balance and system, to make the purpose of the present invention, technology
Scheme and effect are clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should manage
Solution, described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange
Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
With reference to the accompanying drawing, by the description of the embodiment, further explanation of the contents of the invention are made.
It please refers to shown in Fig. 1 and Fig. 2, Fig. 2 is that the present invention is based on the automatic debugging software streams of the LCD TV white balance of CA310
Journey block diagram, Fig. 1 are a kind of flow chart of the preferred embodiment of the automatic adjustment method of LCD TV white balance provided by the invention.Institute
The method of stating includes:
Color temperature parameters under S100, the acquisition current color temperature mode of LCD TV, and liquid crystal is determined according to preset white balance parameter
The preset color temperature parameter of TV.
Specifically, as shown in table 1, table 1 is the test content and requirement that LCD TV automatic white balance debugs colour temperature.By table
1 it is found that the color temperature mode includes beautiful/Cool, standard/Nature and nature/Warm these three modes.That is,
The white balance parameter of LCD TV be respectively necessary for beautiful/Cool, standard/Nature, nature/Warm these three modes respectively into
The debugging of row color temperature parameters, corresponding color temperature value are respectively 12000K, 9300K and 6500K.It is usually used in engineer application
U, v coordinate indicates colour temperature.Wherein, beautiful/Cool, standard/Nature, these three modes of nature/Warm corresponding u, v
Representative value is respectively (0.185,0.433), (0.189,0.447) and (0.198,0.468).Correspondingly, the acquisition liquid crystal electricity
It is specifically included depending on the color temperature parameters under current color temperature mode:
Color temperature parameters under the current color temperature mode of LCD TV are obtained using analyzer, wherein the color temperature parameters include u, v color
The corresponding u of coordinate system, v coordinate value.In practical applications, CA310 is color analyzer general in engineering, can directly be measured
U, v value of LCD TV.It should be noted that the color temperature parameters obtained under the current color temperature mode of LCD TV, and according to
Preset white balance parameter determines that the preset color temperature parameter of LCD TV includes: before
S1, obtain several LCD TVs white balance parameter average value, and the liquid crystal electricity is set as according to the average value
Depending on preset white balance parameter, wherein several LCD TVs are located at before the LCD TV according to debugging sequence.
In the present embodiment, computer is the control hinge of whole system: tested LCD TV is connected with computer by network interface,
CA310 is connected with computer by serial ports.The average value of preceding n platform TV white balance parameter is assigned to by upper computer software as initial value
(n+1)th TV, in this way, directly using average value as the initial value of the white balance parameter of LCD TV, for most of TV
For be all direct qualified parameter, no longer need to carry out additional adjusting, to improve LCD TV white balance debugging efficiency.It needs
If be noted that it is unqualified using average value as initial value, just need that the white balance of TV is adjusted.
Further, the preset color temperature parameter that LCD TV is determined according to preset white balance parameter, specifically includes:
Specifically, the preset color temperature parameter of LCD TV is determined according to preset white balance parameter, wherein preset color temperature parameter packet
The color temperature parameters preset under different-colour mode, i.e. colour temperature standard value under different-colour mode are included, for example, in host computer
Standard u, v value under tri- beautiful/Cool, standard/Normal, nature/Warm colour temperatures is set in software, next to realize
Step in S200.In the present embodiment, standard u, the v value is respectively set to (0.185,0.433), (0.189,0.447)
(0.198,0.468).
1 LCD TV automatic white balance of table debugs colour temperature test content and requirement
| Mode | Colour temperature | U value representative value | V value representative value | U value deviation range | V value deviation range |
| Beautiful/Cool | 12000K | 0.185 | 0.433 | ±0.005 | ±0.008 |
| Standard/Nature | 9300K | 0.189 | 0.447 | ±0.005 | ±0.008 |
| Nature/Warm | 6500K | 0.198 | 0.468 | ±0.005 | ±0.008 |
S200, the difference for calculating the color temperature parameters and the preset color temperature parameter, and judge the difference whether in deviation model
In enclosing.
As shown in figure 3, Fig. 3 is in a kind of automatic adjustment method preferred embodiment of LCD TV white balance provided by the invention
The flow chart of step S200.Correspondingly, the difference for calculating the color temperature parameters and the preset color temperature parameter, and judge institute
State whether difference specifically includes in deviation range:
S201, the difference for calculating the color temperature parameters and preset color temperature parameter；
S202, the difference is compared with preset color temperature deviation, to determine the color temperature parameters and preset color temperature parameter
Difference whether in deviation range.
Since deviation requirement of the national standard to u, v value is no more than ± 0.02.Therefore in algorithm of the invention, we
It is ± 0.008 by the deviation setting that the deviation setting of u value is ± 0.005, v value, is much smaller than national standard, it can effective control
Machine mass.Further, the difference is compared with preset color temperature deviation, to determine the color temperature parameters and default color
Whether the difference of warm parameter is in deviation range, so as to preferably improve white balance parameter effect.In the specific implementation, may be used
The deviation range that u, v value are allowed to be arranged in upper computer software.In u, v value within setting deviation range, it is considered as white flat
The machine for the parameter qualification that weighs；Conversely, being then considered as unqualified.
S300, when the difference is not in deviation range, according to the difference to the three primary colours point of the LCD TV
Magnitude is adjusted, to adjust the color temperature parameters under the current color temperature mode.
Specifically, as shown in figure 4, Fig. 4 is that a kind of automatic adjustment method of LCD TV white balance provided by the invention is preferable
The flow chart of step S300 in embodiment.Correspondingly, when the difference is not in deviation range, according to the difference to described
The three primary colours component value of LCD TV is adjusted, to adjust the color temperature parameters under the current color temperature mode specifically:
S301, when the difference is not in deviation range, search the corresponding white balance parameter of the current color temperature mode；
S302, LCD TV three primary colours component value is adjusted according to the white balance parameter, to adjust the current colour temperature
Color temperature parameters under mode.
Specifically, it when the difference is not in deviation range, then needs to go to find by special algorithm satisfactory
Until white balance parameter.Further, the white balance parameter of LCD TV is embodied by RGB Gain value.RGB Gain is
LCD TV three primary colours component, wherein R Gain represents red component, and G gain represents green component, and B gain represents blue point
Amount.The value range of RGB Gain value is 0 ~ 1028, and the combination for adjusting RGB Gain value can change u, v value.In order to as far as possible
Reduction LCD TV luminance loss, improve the display effect of television set, in algorithm of the invention, to guarantee RGB always
Having one-component in tri- components of Gain is maximum value, that is, it is 1028 that guaranteeing, which has a value,.Correspondingly, described according to described white flat
LCD TV three primary colours component value is adjusted in weighing apparatus parameter specifically: according to the white balance parameter to LCD TV three primary colours
Component value is adjusted, and controls at least one component value in three primary colours component value and be in preset value.
In the present embodiment, when current color temperature mode is beautiful/Cool, upper computer software controls TV by network interface and gets
The pattern(image of beautiful/Cool), CA310, which measures u, v value of beautiful/Cool and returns to upper computer software, to be judged whether
Meet established standards.
Further, if host computer judges that u, v value do not meet established standards, upper computer software can pass through special algorithm
Satisfactory white balance parameter is gone for, until finding the white balance parameter for meeting established standards, is then entered back into down
Color temperature mode once.Also, during searching, to guarantee at least one maximum of the component of RGB Gain always, be
1028。
Further, if host computer judges that u, v value meet established standards, upper computer software controls TV by network interface
U, v value for getting standard/Nature pattern, CA310 measurement standard/Normal return to upper computer software and judge whether
Meet established standards.
Further, if host computer judges that u, v value do not meet established standards, upper computer software can pass through special algorithm
Satisfactory white balance parameter is gone for, until finding the white balance parameter for meeting established standards, is then entered back into down
One color temperature mode.Also, during searching, to guarantee at least one maximum of the component of RGB Gain always, be
1028。
Further, if host computer judges that u, v value meet established standards, upper computer software can control electricity by network interface
Depending on getting nature/Warm pattern, CA310 measurement nature/Warm u, v value returns to upper computer software and judges whether to accord with
Close established standards.
Further, if host computer judges that u, v value do not meet established standards, upper computer software can pass through special algorithm
Satisfactory white balance parameter is gone for, until finding the white balance parameter for meeting established standards, is then entered back into down
One color temperature mode.Also, during searching, to guarantee at least one maximum of the component of RGB Gain always, be
1028。
Further, upper computer software will record down the string number of this (n+1)th tested TV, and beautiful/Cool, standard/
Nature, nature/Warm white balance parameter RGB Gain value and corresponding u, v value, are tracked to produce.
Further, (n+1)th test terminates, and then measures the n-th+2.
In the present embodiment, u, v value of all tested machines all meet normal distribution, this is because most of by preceding n
Platform machine average value, the way of (n+1)th machine is assigned to as initial value, all can directly be met the requirements, without logical
Special algorithm is crossed to look for.
S400, it is carried out according to white balance parameter of the color temperature parameters under each color temperature mode after adjusting to the LCD TV
Debugging.
Specifically, the present invention is according to the color temperature parameters under each color temperature mode after adjusting to the white balance of the LCD TV
Parameter is debugged.I.e. only after the color temperature parameters of above three color temperature mode are all adjusted, just correspondence has adjusted television set
White balance parameter, to realize the debugging of LCD TV factory automatic white balance, make the white balance of every TV all in
Optimal state.
Based on the above-mentioned automatic adjustment method of LCD TV white balance, this application provides a kind of computer-readable storage mediums
Matter, the computer-readable recording medium storage have one or more program, and one or more of programs can be by one
Or multiple processors execute, to realize the step in the automatic adjustment method of LCD TV white balance described in above-described embodiment.
Based on the above-mentioned automatic adjustment method of LCD TV white balance, the present invention also provides a kind of LCD TV white balances certainly
Dynamic debugging system comprising: LCD TV and host computer, the LCD TV and the host computer communicate.As shown in figure 5,
The host computer includes at least one processor (processor) 20；Display screen 21；And memory (memory) 22, may be used also
To include communication interface (Communications Interface) 23 and bus 24.Wherein, processor 20, display screen 21, deposit
Reservoir 22 and communication interface 23 can complete mutual communication by bus 24.Display screen 21 is set as display initial setting up mould
Preset user guides interface in formula.Communication interface 23 can transmit information.Processor 20 can call patrolling in memory 22
Instruction is collected, to execute the method in above-described embodiment.
In addition, the logical order in above-mentioned memory 22 can be realized and as only by way of SFU software functional unit
Vertical product when selling or using, can store in a computer readable storage medium.
Memory 22 is used as a kind of computer readable storage medium, and it is executable to may be configured as storage software program, computer
Program, such as the corresponding program instruction of method or module in the embodiment of the present disclosure.Processor 30 is stored in memory by operation
Software program, instruction or module in 22, thereby executing functional application and data processing, i.e. side in realization above-described embodiment
Method.
Memory 22 may include storing program area and storage data area, wherein storing program area can storage program area, extremely
Application program needed for a few function；Storage data area, which can be stored, uses created data etc. according to terminal device.This
Outside, memory 22 may include high-speed random access memory, can also include nonvolatile memory.For example, USB flash disk, movement
Hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory,
RAM), a variety of media that can store program code such as magnetic or disk, are also possible to transitory memory medium.
In addition, a plurality of instruction processing unit in above-mentioned storage medium and mobile terminal loads and the detailed process executed exists
It has been described in detail in the above method, has just no longer stated one by one herein.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of automatic adjustment method of LCD TV white balance, characterized in that it comprises:
The color temperature parameters under the current color temperature mode of LCD TV are obtained, and LCD TV is determined according to preset white balance parameter
Preset color temperature parameter；
The difference of the color temperature parameters Yu the preset color temperature parameter is calculated, and judges the difference whether in deviation range；
When the difference is not in deviation range, adjusted according to three primary colours component value of the difference to the LCD TV
Section, to adjust the color temperature parameters under the current color temperature mode;
The white balance parameter of the LCD TV is debugged according to the color temperature parameters under each color temperature mode after adjusting.
2. the automatic adjustment method of LCD TV white balance according to claim 1, which is characterized in that the acquisition LCD TV
Color temperature parameters under current color temperature mode, and before determining according to preset white balance parameter the preset color temperature parameter of LCD TV
Include:
The average value of the white balance parameter of several LCD TVs is obtained, and the LCD TV is set as according to the average value
Preset white balance parameter, wherein several LCD TVs are located at before the LCD TV according to debugging sequence.
3. the automatic adjustment method of LCD TV white balance according to claim 1, which is characterized in that the acquisition LCD TV
Color temperature parameters under current color temperature mode specifically include:
Color temperature parameters under the current color temperature mode of LCD TV are obtained using analyzer, wherein the color temperature parameters include u, v color
The corresponding u of coordinate system, v coordinate value.
4. the automatic adjustment method of LCD TV white balance according to claim 1, which is characterized in that described to calculate the colour temperature
The difference of parameter and preset color temperature parameter, and judge whether the difference specifically includes in deviation range:
Calculate the difference of the color temperature parameters Yu preset color temperature parameter；
The difference is compared with preset color temperature deviation, to determine the difference of the color temperature parameters Yu preset color temperature parameter
Whether in deviation range.
5. the automatic adjustment method of LCD TV white balance according to claim 1, which is characterized in that when the difference is not inclined
When in poor range, it is adjusted according to three primary colours component value of the difference to the LCD TV, to adjust the current color
Color temperature parameters under warm mode specifically:
When the difference is not in deviation range, the corresponding white balance parameter of the current color temperature mode is searched；
LCD TV three primary colours component value is adjusted according to the white balance parameter, to adjust under the current color temperature mode
Color temperature parameters.
6. the automatic adjustment method of LCD TV white balance according to claim 5, which is characterized in that described according to described white flat
LCD TV three primary colours component value is adjusted in weighing apparatus parameter specifically: according to the white balance parameter to LCD TV three primary colours
Component value is adjusted, and controls at least one component value in three primary colours component value and be in preset value.
7. the automatic adjustment method of LCD TV white balance according to claim 5, which is characterized in that further include:
Record and save the white balance parameter of LCD TV.
8. the automatic adjustment method of LCD TV white balance according to claim 1, which is characterized in that the color of the LCD TV
Warm mode includes beautiful, standard and naturally, and the color temperature parameters under each color temperature mode is adjusted respectively.
9. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or
Multiple programs, one or more of programs can be executed by one or more processor, to realize such as claim 1~8
Step in the automatic adjustment method of LCD TV white balance described in any one.
10. a kind of LCD TV white balance automatic debugging system characterized by comprising LCD TV and host computer, institute
Stating host computer includes processor and memory and communication bus;The meter that can be executed by the processor is stored on the memory
Calculation machine readable program；
The communication bus realizes the connection communication between processor and memory；
The processor realizes the liquid crystal electricity as described in claim 1~8 any one when executing the computer-readable program
Depending on the step in the automatic adjustment method of white balance.
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| CN111653250A (en) * | 2020-06-11 | 2020-09-11 | 深圳创维－Rgb电子有限公司 | Screen display demonstration method and device and terminal equipment |
| CN113038110A (en) * | 2021-03-11 | 2021-06-25 | 深圳康佳电子科技有限公司 | White balance calibration method and device, terminal equipment and storage medium |
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