CN108806621A - A kind of gamut conversion method and device - Google Patents
A kind of gamut conversion method and device Download PDFInfo
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- CN108806621A CN108806621A CN201710301623.6A CN201710301623A CN108806621A CN 108806621 A CN108806621 A CN 108806621A CN 201710301623 A CN201710301623 A CN 201710301623A CN 108806621 A CN108806621 A CN 108806621A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
- G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
Abstract
A kind of gamut conversion method of present invention offer and device, method include：Receive color gamut conversion instruction, color gamut conversion instruction includes colour gamut pattern to be converted；The colour gamut pattern transformational relation of display is obtained, the colour gamut pattern transformational relation is corresponding color gamut conversion parameter when display is converted to non-referenced colour gamut pattern from reference gamut pattern, and determines the corresponding color gamut conversion parameter of the colour gamut pattern to be converted；Obtain the signal to be shown of the display；According to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the output signal of the signal to be shown is determined.In the embodiment of the present invention, after receiving color gamut conversion instruction, the colour gamut pattern transformational relation of present displays is obtained, and according to transformational relation and signal to be shown, transformed signal is exported, really realizes the color gamut conversion of display screen, and the conversion of plurality of color domain model can be carried out.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of gamut conversion method and devices.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD) and light emitting diode (light
Emittingdiode, LED) display because having many advantages, such as frivolous external form, power saving and radiationless, has been widely used in
On the electronic products such as multimedia player, mobile phone, personal digital assistant (PDA), computer monitor or flat-surface television.It is existing
Usually the arrange in pairs or groups light-emitting component of three primary colors RGB (red, green, blue color) of corresponding light of some liquid crystal displays or light-emitting diode display is shown
Provide high brightness and the color of high chroma.
With the innovation of display screen luminous mechanism, a kind of OLED display technologies-AMOLED starts extensive use.AMOLED
(Active-matrix organic light emitting diode) be it is a kind of using multilayer organic compound come realize from
Luminous display technology, because its have the characteristics that wide colour gamut, high contrast, ultra-thin, low-power consumption, it is flexible due to advantage protrude.
For color, AMOLED provides broader gamut range, can restore more fine and smooth color-grading.However existing market
Also it is mostly that LCD occupies, in order to facilitate customers demand, it is necessary to propose a kind of method to reduce AMOLED and LCD screen secondary color
The difference that colour display screen shows.
In the prior art, in the toner pattern of existing LCD display, basic model is the display colour gamut of sRGB, fresh
Gorgeous pattern mostly uses the way of changing section grayscale Gamma, visually has the function that improve color saturation.On but
To state gamut conversion method substantially be come the brightness of adjustment member grayscale using fixed parameter to realize different colour gamut patterns
Color displays can neither carry out color gamut conversion truly, and because the parameter that different colour gamuts turn letter is fixed, be unable to adjust
Existing colour gamut difference between each display panel.
Invention content
The present invention provides a kind of gamut conversion method and device, different for solving the prior art due in the prior art
The parameter that colour gamut turns letter is fixed, and cannot be adjusted and due to being had differences between each display panel in hardware so that the prior art
In the problem of can not accurately determining transformed color gray scale.
The embodiment of the present invention provides a kind of gamut conversion method, the method includes：
Receive color gamut conversion instruction, color gamut conversion instruction includes colour gamut pattern to be converted；
The colour gamut pattern transformational relation of display is obtained, the colour gamut pattern transformational relation is display from reference gamut mould
Formula is converted to corresponding color gamut conversion parameter when non-referenced colour gamut pattern, and determines the corresponding color of colour gamut pattern to be converted
Domain conversion parameter；
Obtain the signal to be shown of the display；
According to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the output letter of the signal to be shown is determined
Number.
In the embodiment of the present invention, after receiving color gamut conversion instruction, the colour gamut pattern conversion for obtaining present displays is closed
System, and according to transformational relation and signal to be shown, transformed signal is exported, the colour gamut for really realizing display screen turns
It changes, and the conversion of plurality of color domain model can be carried out, and can be determined different according to the difference of the hardware information of different displays
Color gamut conversion parameter realizes that different displays can accurately determine transformed color gray scale；It is true according to different colour gamut patterns
Fixed different color gamut conversion parameter, shows the accurate conversion between different colour gamuts.
Further, the correspondence of colour gamut pattern and color gamut conversion parameter to be converted is determined according to following method, is wrapped
It includes：
According to the reference gamut pattern of the display, determine the display in the reference gamut pattern corresponding three
Values Component Matrices, wherein the corresponding tristimulus values Component Matrices of the reference gamut pattern are the display described
Three primary colors tristimulus values Component Matrices when reference gamut pattern under maximum brightness white balance state；
Obtain the corresponding tristimulus values Component Matrices of the first colour gamut pattern；Wherein, the first colour gamut pattern is described non-
Any of reference gamut pattern, the corresponding tristimulus values Component Matrices of the first colour gamut pattern are the display in institute
Three primary colors tristimulus values Component Matrices when stating the first colour gamut pattern under maximum brightness white balance state；
It is corresponding according to the corresponding tristimulus values Component Matrices of the reference gamut pattern and the first colour gamut pattern
Tristimulus values Component Matrices determine the corresponding color gamut conversion parameter of the first colour gamut pattern, and establish the first colour gamut pattern
With the correspondence of the color gamut conversion parameter.
In the embodiment of the present invention, due to tristimulus values phase of the actual display color of pixel in the case where two kinds of colour gamut patterns are converted
Deng, it is possible to according to before conversion colour gamut pattern to be converted and color gamut conversion parameter are determined with transformed tristimulus values
Correspondence.
Further, described according to the corresponding tristimulus values Component Matrices of the reference gamut pattern and first color
The corresponding tristimulus values Component Matrices of domain model determine the corresponding color gamut conversion parameter of the first colour gamut pattern, including：
Wherein, M is the corresponding color gamut conversion parameter of the first colour gamut pattern,For the benchmark
The corresponding tristimulus values Component Matrices of colour gamut pattern,For the corresponding tristimulus of the first colour gamut pattern
It is worth Component Matrices.
It, can be according to the actual display color of pixel before switching and transformed tristimulus values in the embodiment of the present invention
Component Matrices determine conversion parameter.
Further, described according to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, determine described in wait showing
Show the output signal of signal, including：
The input signal to be shown is normalized, the input signal after being normalized；
According to after the normalization input signal and color gamut conversion parameter determine output signal.
Further, described according to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, determine described in wait showing
After showing the output signal of signal, further include：
The output signal is subjected to inverse normalized, obtains the corresponding grey order component of output signal；
Driving voltage is determined according to the grey order component and the relationship of the grey order component and driving voltage；
The corresponding pixel of the grey order component is shown in the display using driving voltage driving.
In the embodiment of the present invention, after determining output signal, inverse normalized is carried out to output signal, so as to
It determines the corresponding grey order component of output signal, driving voltage is then determined according to grey order component, then applies driving voltage
Show transformed pixel.
The present invention also provides a kind of color gamut conversion devices, including：
Receiving unit, for receiving color gamut conversion instruction, color gamut conversion instruction includes colour gamut pattern to be converted；
Acquiring unit, the colour gamut pattern transformational relation for obtaining display, the colour gamut pattern transformational relation are display
Device corresponding color gamut conversion parameter when being converted to non-referenced colour gamut pattern from reference gamut pattern；The display is obtained to wait showing
Show signal；
Determination unit, for according to the colour gamut pattern transformational relation, determining that the colour gamut pattern to be converted is corresponding
Color gamut conversion parameter；According to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the signal to be shown is determined
Output signal.
In the embodiment of the present invention, after receiving color gamut conversion instruction, the colour gamut pattern conversion for obtaining present displays is closed
System, and according to transformational relation and signal to be shown, transformed signal is exported, the colour gamut for really realizing display screen turns
It changes, and the conversion of plurality of color domain model can be carried out.
Further, the determination unit, is specifically used for：
According to the reference gamut pattern of the display, determine the display in the reference gamut pattern corresponding three
Values Component Matrices, wherein the corresponding tristimulus values Component Matrices of the reference gamut pattern are the display described
Three primary colors tristimulus values Component Matrices when reference gamut pattern under maximum brightness white balance state；
Obtain the corresponding tristimulus values Component Matrices of the first colour gamut pattern；Wherein, the first colour gamut pattern is described non-
Any of reference gamut pattern, the corresponding tristimulus values Component Matrices of the first colour gamut pattern are the display in institute
Three primary colors tristimulus values Component Matrices when stating the first colour gamut pattern under maximum brightness white balance state；
It is corresponding according to the corresponding tristimulus values Component Matrices of the reference gamut pattern and the first colour gamut pattern
Tristimulus values Component Matrices determine the corresponding color gamut conversion parameter of the first colour gamut pattern, and establish the first colour gamut pattern
With the correspondence of the color gamut conversion parameter.
Further, the determination unit, is specifically used for：
Wherein, M is the corresponding color gamut conversion parameter of the first colour gamut pattern,For the reference colours
The corresponding tristimulus values Component Matrices of domain model,For the corresponding tristimulus values of the first colour gamut pattern
Component Matrices.
Further, the determination unit, is specifically used for：
The input signal to be shown is normalized, the input signal after being normalized；
According to after the normalization input signal and color gamut conversion parameter determine output signal.
Further, described device further includes：
Display unit obtains the corresponding grayscale point of output signal for the output signal to be carried out inverse normalized
Amount；
Driving voltage is determined according to the grey order component and the relationship of the grey order component and driving voltage；
The corresponding pixel of the grey order component is shown in the display using driving voltage driving.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of flow diagram of gamut conversion method provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram that one kind (8+N) bit provided in an embodiment of the present invention restores RGB；
Fig. 3 is a kind of structural schematic diagram of color gamut conversion device provided in an embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The present invention provides a kind of gamut conversion method, as shown in Figure 1, including：
Step 101, color gamut conversion instruction is received, color gamut conversion instruction includes colour gamut pattern to be converted；
Step 102, the colour gamut pattern transformational relation of display is obtained, the colour gamut pattern transformational relation is display from base
Quasi- colour gamut pattern is converted to corresponding color gamut conversion parameter when non-referenced colour gamut pattern, and determines the colour gamut pattern to be converted
Corresponding color gamut conversion parameter；
Step 103, the signal to be shown of the display is obtained；
Step 104, according to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the signal to be shown is determined
Output signal.
In a step 101, when needing to carry out color gamut conversion, color gamut conversion instruction is received, color gamut conversion instruction includes
Colour gamut pattern to be converted needs the colour gamut converted to be for example, in embodiments of the present invention, display is displayer
SRGB Adobe RGB.Color gamut conversion instruction includes sRGB Adobe RGB.
In a step 102, the transformational relation between the colour gamut of present displays and colour gamut pattern to be converted is obtained, is converted
Relationship is corresponding color gamut conversion parameter when display is converted to non-referenced colour gamut pattern from reference gamut pattern；
In embodiments of the present invention, by taking display is displayer as an example, the reference gamut pattern of display is exactly
AMOLED colour gamut patterns, non-referenced colour gamut are exactly sRGB Adobe RGB colors domain, it is assumed that be converted in color gamut conversion instruction
Colour gamut pattern is sRGB, then what is obtained is transformational relation of the AMOLED color gamut conversions to sRGB colour gamuts.
In a step 102, after obtaining color gamut conversion relationship, it may be determined that color gamut conversion parameter, optionally, in the present invention
In embodiment, each transformational relation corresponds to a kind of color gamut conversion parameter, such as shown in table 1, and the reference gamut of display is display
Colour gamut pattern 1, non-referenced colour gamut is colour gamut pattern 2, colour gamut pattern 3 and colour gamut pattern 4, then transformational relation and conversion parameter
Correspondence it is as shown in table 1：
Table 1：The correspondence of transformational relation and conversion parameter
Optionally, in embodiments of the present invention, conversion parameter can be determined that before display manufacture, and will conversion
Parameter is placed in a register, to call；Alternatively, conversion parameter can determine after display initialization, can also connect
Conversion parameter is determined again after receiving color gamut conversion instruction.
Optionally, the correspondence of colour gamut pattern and color gamut conversion parameter to be converted is determined according to following method, including：
According to the reference gamut pattern of the display, determine that the display is corresponding in the reference gamut pattern
Tristimulus values Component Matrices, wherein the corresponding tristimulus values Component Matrices of the reference gamut pattern are the display in institute
Three primary colors tristimulus values Component Matrices when stating reference gamut pattern under maximum brightness white balance state；
Obtain the corresponding tristimulus values Component Matrices of the first colour gamut pattern；Wherein, the first colour gamut pattern is described non-
Any of reference gamut pattern, the corresponding tristimulus values Component Matrices of the first colour gamut pattern are the display in institute
Three primary colors tristimulus values Component Matrices when stating the first colour gamut pattern under maximum brightness white balance state；
It is corresponded to according to the corresponding tristimulus values Component Matrices of the reference gamut pattern and the first colour gamut pattern
Tristimulus values Component Matrices determine the corresponding color gamut conversion parameter of the first colour gamut pattern, and establish the first colour gamut mould
The correspondence of formula and the color gamut conversion parameter.
In embodiments of the present invention, tristimulus values tristimulus values are to cause human body retina to certain color
The expression of the amount of the stimulation degree for the three kinds of primary colors felt.In trichromatic system, three kinds needed for color-match are reached with light to be measured
The amount of primary colors stimulation.It is indicated with X (red primaries quantity of stimulus), Y (green primary color quantity of stimulus) and Z (blue primary quantity of stimulus).
Since the actual display color of pixel is equal with the tristimulus values in colour gamut to be converted in reference gamut, so can
With by before color gamut conversion and the corresponding tristimulus values of transformed pixel determines between reference gamut and colour gamut to be converted
Conversion parameter.
Optionally, in the present invention is embodiment, according to the corresponding tristimulus values Component Matrices of reference gamut pattern and
The corresponding tristimulus values Component Matrices of first colour gamut pattern determine the corresponding color gamut conversion parameter of the first colour gamut pattern, including：
Wherein, M is the corresponding color gamut conversion parameter of the first colour gamut pattern,On the basis of colour gamut pattern
Corresponding tristimulus values Component Matrices,For the corresponding tristimulus values Component Matrices of the first colour gamut pattern.
For example, in embodiments of the present invention, for the three of the corresponding display color of any signal in reference gamut
Values (X1, Y1, Z1), the tristimulus values of the corresponding display color of signal to be output in transformed colour gamut pattern be (X2,
Y2, Z2), then
Wherein, On the basis of colour gamut tristimulus values
Component Matrices,On the basis of picture element signal (R1, G1, B1) is normalized in colour gamut after result； For the tristimulus values Component Matrices of colour gamut to be converted,For in colour gamut to be changed for picture element signal (R2, G2, B2) normalize after result.
I.e.That is, conversion parameter M is：
Optionally, in embodiments of the present invention,It can be by the attribute information of display screen come really
Determine, such as after the basic color by CA310 acquisition displays, it may be determined that the tristimulus values Component Matrices of display.
And in embodiments of the present invention, the corresponding tristimulus values component of non-referenced colour gamut can be pre-stored in display
In register cell, to be called when determining conversion parameter.
Optionally, in embodiments of the present invention, since conversion parameter is determined according to the attribute information of display screen, institute
Although different with the hardware information of display screen, different conversion parameters can be determined according to different hardware informations, also
Different display screens may be implemented after carrying out color gamut conversion, the problem of colour gamut is drifted about in display screen making technology can be eliminated, it can
Precisely to determine transformed color, otherness is eliminated.
In step 103, signal to be shown is obtained, which needs to carry out color gamut conversion.
Optionally, in embodiments of the present invention, step 104 can before step 101, can also be after step 103.
At step 104, after obtaining color gamut conversion coefficient and signal to be shown, it may be determined that display output
Output signal.For example, in embodiments of the present invention, the tristimulus values matrix of color shown by picture element signal to be shown be (R,
G,B)IN, conversion coefficient M, then the tristimulus values matrix (R, G, B) of color shown by the picture element signal exportedOUTFor：
Optionally, in embodiments of the present invention, according to the corresponding color gamut conversion parameter of colour gamut pattern to be converted, determination waits for
Show the output signal of signal, including：
Input signal to be shown is normalized, the input signal after being normalized；
According to after normalization input signal and color gamut conversion parameter determine output signal.
For example, in embodiments of the present invention, signal to be shown is (R, G, B), then the display signal after normalizing is：
Further include after step 104：
Output signal is subjected to inverse normalized, obtains the corresponding grey order component of output signal；According to grey order component with
And the relationship of grey order component and driving voltage determines driving voltage；Grey order component is shown in the display using driving voltage driving
Corresponding pixel.
In embodiments of the present invention, after output signal is determined, output signal is subjected to 8bit reduction, so as to really
The corresponding grey order component of set output signal；And since grey order component is driven by voltage, so grayscale is determined
After component, according to the correspondence of driving voltage and grey order component, the corresponding driving voltage of grey order component can determine, and utilize
Driving voltage driving display.
Optionally, in embodiments of the present invention, if after output signal is carried out 8bit reduction, what is obtained is decimal, and should
Decimal does not have corresponding grey order component, then interpolation calculates the corresponding driving voltage of decimal grayscale in IC, i.e., is by data augmentation
The size of (8+N) bit, N is set according to Source voltage accuracies.
Example：As shown in Fig. 2, if IC is optional, some restores grayscale in 8bit between A and A+1Gray, but is doing (8
+ 1) when bit is restored, become 2A+1 grayscale, round up compared to 8bit, Source voltages can be controlled more fine, make to show
Show color precision higher.
Optionally, in embodiments of the present invention, if after output signal is carried out 8bit reduction, what is obtained is decimal, and should
Decimal does not have corresponding grey order component, the then result after restoring 8bit to round up, to determine the knot to round up
The corresponding driving voltage of fruit.
Optionally, in embodiments of the present invention, the reference gamut of display is the big colour gamut of range rather than reference gamut is
The small colour gamut of gamut range, for example, the reference gamut of display be AMOLED colour gamuts, then non-referenced colour gamut can be sRGB or
Adobe RGB, that is to say, that may be implemented signal to be output in displayer from AMOLED color gamut conversions be sRGB or
Person's Adobe RGB colors domain.
In another example the reference gamut of display is Adobe RGB, then non-referenced colour gamut can be sRGB, and cannot be
AMOLED, this is because the luminous mechanism of display cannot show the color of transformed AMOLED colour gamuts completely
Optionally, in embodiments of the present invention, when receiving stopping converting gamut instruction, letter to be shown is directly exported
Number, no longer carry out color gamut conversion.
For the ease of the understanding of those skilled in the art, herein for example, the present invention provides a kind of gamut conversion method,
In the embodiment of the present invention, signal to be shown is (R, G, B), and the output signal after color gamut conversion is (R1,G1,B1), and display
For displayer, i.e. reference gamut is AMOLED colour gamuts, after receiving color gamut conversion instruction, it is determined that in color gamut conversion instruction
Including colour gamut pattern to be converted be sRGB colour gamuts；And pair of AMOLED colour gamuts, sRGB colour gamuts and conversion parameter M is determined
It should be related to, wherein
Signal to be shown is normalized first, the signal to be shown after normalization is (r, g, b)in, wherein
Then the output signal after color gamut conversion is：
Then 8bit the reduction, (R after reduction are carried out to output signal1,G1,B1) be
Wherein, (s, t, u) is GAMMA transformation parameters, and it is the function operation to round up to A to define f (A).
Then according to (R1,G1,B1) determine corresponding driving voltage, then shown with the driving voltage.
Based on same design, the embodiment of the present invention also provides a kind of color gamut conversion device, as shown in figure 3, including：
Receiving unit 301, for receiving color gamut conversion instruction, color gamut conversion instruction includes colour gamut mould to be converted
Formula；
Acquiring unit 302, the colour gamut pattern transformational relation for obtaining display, the colour gamut pattern transformational relation is aobvious
Show corresponding color gamut conversion parameter when device is converted to non-referenced colour gamut pattern from reference gamut pattern；Obtain waiting for for the display
Show signal；
Determination unit 303, for according to the colour gamut pattern transformational relation, determining that the colour gamut pattern to be converted corresponds to
Color gamut conversion parameter；According to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the signal to be shown is determined
Output signal.
Further, the determination unit 303, is specifically used for：
According to the reference gamut pattern of the display, determine the display in the reference gamut pattern corresponding three
Values Component Matrices；
Obtain the corresponding tristimulus values Component Matrices of the first colour gamut pattern；Wherein, the first colour gamut pattern is described non-
Any of reference gamut pattern；
It is corresponding according to the corresponding tristimulus values Component Matrices of the reference gamut pattern and the first colour gamut pattern
Tristimulus values Component Matrices determine the corresponding color gamut conversion parameter of the first colour gamut pattern, and establish the first colour gamut pattern
With the correspondence of the color gamut conversion parameter.
Further, the determination unit 303, is specifically used for：
Wherein, M is the corresponding color gamut conversion parameter of the first colour gamut pattern,For the benchmark
The corresponding tristimulus values Component Matrices of colour gamut pattern,For the corresponding tristimulus of the first colour gamut pattern
It is worth Component Matrices.
Further, the determination unit 303, is specifically used for：
The input signal to be shown is normalized, the input signal after being normalized；
According to after the normalization input signal and color gamut conversion parameter determine output signal.
Further, described device further includes：
Display unit 304 obtains the corresponding grayscale of output signal for the output signal to be carried out inverse normalized
Component；
Driving voltage is determined according to the grey order component and the relationship of the grey order component and driving voltage；
The corresponding pixel of the grey order component is shown in the display using driving voltage driving.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of gamut conversion method, which is characterized in that the method includes：
Receive color gamut conversion instruction, color gamut conversion instruction includes colour gamut pattern to be converted；
The colour gamut pattern transformational relation of display is obtained, the colour gamut pattern transformational relation is that display turns from reference gamut pattern
It is changed to corresponding color gamut conversion parameter when non-referenced colour gamut pattern, and determines that the corresponding colour gamut of the colour gamut pattern to be converted turns
Change parameter；
Obtain the signal to be shown of the display；
According to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the output signal of the signal to be shown is determined.
2. according to the method described in claim 1, it is characterized in that, determining colour gamut pattern to be converted and color according to following method
The correspondence of domain conversion parameter, including：
According to the reference gamut pattern of the display, determine the display in the corresponding tristimulus of the reference gamut pattern
It is worth Component Matrices, wherein the corresponding tristimulus values Component Matrices of the reference gamut pattern are the display in the benchmark
Three primary colors tristimulus values Component Matrices when colour gamut pattern under maximum brightness white balance state；
Obtain the corresponding tristimulus values Component Matrices of the first colour gamut pattern；Wherein, the first colour gamut pattern is described non-referenced
Any of colour gamut pattern, the corresponding tristimulus values Component Matrices of the first colour gamut pattern are the display described the
Three primary colors tristimulus values Component Matrices when domain model of the same colour under maximum brightness white balance state；
According to corresponding three thorn of the corresponding tristimulus values Component Matrices of the reference gamut pattern and the first colour gamut pattern
Swash value Component Matrices and determine the corresponding color gamut conversion parameter of the first colour gamut pattern, and establishes the first colour gamut pattern and institute
State the correspondence of color gamut conversion parameter.
3. according to the method described in claim 2, it is characterized in that, described according to the corresponding tristimulus of the reference gamut pattern
Value Component Matrices and the corresponding tristimulus values Component Matrices of the first colour gamut pattern determine that the first colour gamut pattern corresponds to
Color gamut conversion parameter, including：
Wherein, M is the corresponding color gamut conversion parameter of the first colour gamut pattern,For the reference gamut mould
The corresponding tristimulus values Component Matrices of formula,For the corresponding tristimulus values component of the first colour gamut pattern
Matrix.
4. according to the method described in claim 1, it is characterized in that, described according to the corresponding color of colour gamut pattern to be converted
Domain conversion parameter determines the output signal of the signal to be shown, including：
The input signal to be shown is normalized, the input signal after being normalized；
According to after the normalization input signal and color gamut conversion parameter determine output signal.
5. according to the method described in claim 4, it is characterized in that, described according to the corresponding color of colour gamut pattern to be converted
Domain conversion parameter after the output signal for determining the signal to be shown, further includes：
The output signal is subjected to inverse normalized, obtains the corresponding grey order component of output signal；
Driving voltage is determined according to the grey order component and the relationship of the grey order component and driving voltage；
The corresponding pixel of the grey order component is shown in the display using driving voltage driving.
6. a kind of color gamut conversion device, which is characterized in that including：
Receiving unit, for receiving color gamut conversion instruction, color gamut conversion instruction includes colour gamut pattern to be converted；
Acquiring unit, the colour gamut pattern transformational relation for obtaining display, the colour gamut pattern transformational relation be display from
Reference gamut pattern is converted to corresponding color gamut conversion parameter when non-referenced colour gamut pattern；Obtain the letter to be shown of the display
Number；
Determination unit, for according to the colour gamut pattern transformational relation, determining the corresponding colour gamut of colour gamut pattern to be converted
Conversion parameter；According to the corresponding color gamut conversion parameter of the colour gamut pattern to be converted, the output of the signal to be shown is determined
Signal.
7. device according to claim 6, which is characterized in that the determination unit is specifically used for：
According to the reference gamut pattern of the display, determine the display in the corresponding tristimulus of the reference gamut pattern
It is worth Component Matrices, wherein the corresponding tristimulus values Component Matrices of the reference gamut pattern are the display in the benchmark
Three primary colors tristimulus values Component Matrices when colour gamut pattern under maximum brightness white balance state；
Obtain the corresponding tristimulus values Component Matrices of the first colour gamut pattern；Wherein, the first colour gamut pattern is described non-referenced
Any of colour gamut pattern, the corresponding tristimulus values Component Matrices of the first colour gamut pattern are the display described the
Three primary colors tristimulus values Component Matrices when domain model of the same colour under maximum brightness white balance state；
According to corresponding three thorn of the corresponding tristimulus values Component Matrices of the reference gamut pattern and the first colour gamut pattern
Swash value Component Matrices and determine the corresponding color gamut conversion parameter of the first colour gamut pattern, and establishes the first colour gamut pattern and institute
State the correspondence of color gamut conversion parameter.
8. device according to claim 7, which is characterized in that the determination unit is specifically used for：
Wherein, M is the corresponding color gamut conversion parameter of the first colour gamut pattern,For the reference gamut mould
The corresponding tristimulus values Component Matrices of formula,For the corresponding tristimulus values component of the first colour gamut pattern
Matrix.
9. device according to claim 6, which is characterized in that the determination unit is specifically used for：
The input signal to be shown is normalized, the input signal after being normalized；
According to after the normalization input signal and color gamut conversion parameter determine output signal.
10. device according to claim 9, which is characterized in that described device further includes：
Display unit obtains the corresponding grey order component of output signal for the output signal to be carried out inverse normalized；
Driving voltage is determined according to the grey order component and the relationship of the grey order component and driving voltage；
The corresponding pixel of the grey order component is shown in the display using driving voltage driving.
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