CN101866641B - Color adjustment method for image - Google Patents
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- CN101866641B CN101866641B CN2010101293285A CN201010129328A CN101866641B CN 101866641 B CN101866641 B CN 101866641B CN 2010101293285 A CN2010101293285 A CN 2010101293285A CN 201010129328 A CN201010129328 A CN 201010129328A CN 101866641 B CN101866641 B CN 101866641B
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Abstract
The invention discloses a color adjustment method for an image. The color adjustment method comprises the following steps of: acquiring an original HSV color coordinate from an original image signal; transforming the original HSV color coordinate into an adjusted HSV color coordinate according to color adjustment data; transferring the adjusted HSV color coordinate into a corrected HSV color coordinate; and generating an output image signal according to the corrected HSV color coordinate.
Description
Technical field
The invention relates to a kind of method of adjustment of image, and particularly relevant for a kind of color adjustment method of image.
Background technology
Color monitor (color display) uses in the society in modern times at large; And color monitor now; Of a great variety; Not only comprise giant displays such as television set, computer screen and projector; But also comprise miniscope, its for example be mobile phone, personal digital aid (PDA) (PersonalDigital Assistant, PDA), the display screen of hand-hold electronic equipments (portable electronic equipment) such as digital camera, digital camera or handheld game device.Present color monitor can not only the display color image, simultaneously can also be with the user like adjusting chromatic image.
Summary of the invention
The present invention provides a kind of color adjustment method of image, and it can adjust the chromatic image that color monitor shows.
The present invention proposes a kind of color adjustment method of image, is applied to a color monitor, and color monitor has a colour gamut, and the color adjustment method of image may further comprise the steps: at first, from an original image signal, obtain an original HSV hue coordinate.Then, according to caidiao opera entire data of the same colour, original HSV color coordinate conversion is become an adjustment HSV hue coordinate.Afterwards, will adjust the HSV color coordinate conversion becomes one to revise the HSV hue coordinate.Then, according to revising the HSV hue coordinate, produce an output image signal.
In one embodiment of this invention, above-mentioned original image signal comprises an original rgb color model value, and the step that obtains original HSV hue coordinate comprises the original rgb color model value of conversion.
In one embodiment of this invention, the form of above-mentioned original rgb color model value is 24 bit formats or 48 bit formats.
In one embodiment of this invention, the method for above-mentioned generation output image signal comprises step: will revise the HSV color coordinate conversion and become an output rgb color model value.
In one embodiment of this invention, the form of above-mentioned original rgb color model value is identical with the form of output rgb color model value.
In one embodiment of this invention, the method for above-mentioned generation color adjustment data comprises step: adjust at least one monochromatic parameter group, wherein monochromatic parameter group comprises a monochromatic scheme value, a monochromatic intensity value and a monochromatic brightness value.
In one embodiment of this invention, the quantity of above-mentioned monochromatic parameter group is a plurality of, and the method for generation color adjustment data may further comprise the steps.Adjust a red tone value, a red saturation scale value and a red brightness value.Adjust a green tone value, a green saturation value and a green brightness value.Adjust a blue color value, a blue saturation value and a blue brightness value.
In one embodiment of this invention, the quantity of above-mentioned monochromatic parameter group is a plurality of, and the method for generation color adjustment data may further comprise the steps.Adjust a carmetta tone value, a carmetta intensity value and a carmetta brightness value.Adjust a yellow tone value, a yellow intensity value and a yellow brightness value.Adjust an Indigo tone value, an Indigo intensity value and an Indigo brightness value.
In one embodiment of this invention, above-mentioned color adjustment data comprise accent weighted value of the same colour, a saturation weighted value and a luminance weights value.Original HSV hue coordinate comprises an original tone value, an initial saturation value and an original brightness value, and adjustment HSV hue coordinate comprises an adjustment tone value, an adjustment intensity value and an adjustment brightness value.Color adjustment data, original HSV hue coordinate and adjustment HSV hue coordinate satisfy following relational expression:
H’＝H+Wh；
S '=S * Ws; And
V’＝V×Wv；
Wherein H is original tone value, and S is the initial saturation value, and V is the original brightness value.H ' is the adjustment tone value, and S ' is the adjustment intensity value, and V ' is the adjustment brightness value.Wh is the tone weighted value, and Ws is the saturation weighted value, and Wv is the luminance weights value.
In one embodiment of this invention, above-mentioned correction HSV hue coordinate is according to the initial saturation value, and conversion adjustment HSV hue coordinate forms.
In one embodiment of this invention, above-mentioned correction HSV hue coordinate comprises a correction tone value, a correction intensity value and a correction brightness value, and adjustment HSV hue coordinate satisfies following relational expression with correction HSV hue coordinate:
H”＝(1-Sm)×H+Sm×H’；
S "=(1-Sm) * S+Sm * S '; And
V”＝(1-Sm)×V+Sm×V’；
H wherein " for revising tone value, S " for revising intensity value, V " for revising brightness value.Sm is a saturation parameters.
In one embodiment of this invention, above-mentioned saturation parameters satisfies relational expression: when 0≤S＜Bm, and Sm * Bm=S, wherein Bm is a first boundary value.
In one embodiment of this invention, above-mentioned saturation parameters also satisfies relational expression: when BM＜S≤1, and Sm * (BM-1)=and S-1, wherein BM is one second boundary value.
In one embodiment of this invention, the second above-mentioned boundary value is greater than first boundary value, and saturation parameters also satisfies relational expression: when Bm≤S≤BM, and Sm=1.
In one embodiment of this invention, the second above-mentioned boundary value equals first boundary value.
Based on above-mentioned, the present invention can adjust the chromatic image that color monitor shows, lets color monitor can present the chromatic image of user's preference.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Description of drawings
Figure 1A is the schematic perspective view of the applicable color monitor of color adjustment method of the image of one embodiment of the invention.
Figure 1B is the colour gamut sketch map that color monitor had among Figure 1A.
Fig. 2 is the schematic flow sheet of color adjustment method of the image of one embodiment of the invention.
Fig. 3 A is the curve chart of the corresponding saturation parameters of initial saturation value in one embodiment of the invention.
Fig. 3 B is the curve chart of the corresponding saturation parameters of initial saturation value in another embodiment of the present invention.
Embodiment
Figure 1A is the schematic perspective view of the applicable color monitor of color adjustment method of the image of one embodiment of the invention.See also Figure 1A; The color adjustment method of the image of present embodiment can be applied to a color monitor 100; And color monitor 100 can be cathode-ray tube display (Cathode Ray TubeDisplay; CRT Display) or thin display (shown in Figure 1A), wherein this thin display for example be LCD (Liquid Crystal Display, LCD) or plasma scope (plasmadisplay).
In the embodiment shown in Figure 1A, color monitor 100 is a kind of computer screen.But; In the embodiment that other does not illustrate; Color monitor 100 also can be giant displays such as television set or projector; Or miniscope, it for example is the display screen of hand-hold electronic equipments such as mobile phone, personal digital aid (PDA), digital camera, digital camera or handheld game device.Color monitor 100 comprises a plurality of setting buttons 110 and a display frame 120.See through and set button 110, the user can adjust the color of the image of color monitor 100.
Figure 1B is the colour gamut sketch map that color monitor had among Figure 1A.See also Figure 1A and Figure 1B; Color monitor 100 has a colour gamut D1; And colour gamut D1 is positioned at coordinate diagram C1 of the same colour; Wherein chromaticity coordinates figure C1 can be CIE (Commission Internationale De L'Eclairage; And CIE is the abbreviation of Commission internationale del ' é clairage) 1931 chromaticity coordinates figure, CIE 1960 chromaticity coordinates figure or CIE 1976 chromaticity coordinates figure, and colour gamut D1 can be contained National Television System Committee (National TelevisionStandards Committee, the NTSC standard colour gamut of NTSC) being formulated.
Fig. 2 is the schematic flow sheet of color adjustment method of the image of one embodiment of the invention.See also Figure 1A and Fig. 2, the color adjustment method of the image of present embodiment may further comprise the steps.At first, carry out step S102,, obtain an original HSV hue coordinate just from an original image signal.In detail, color monitor 100 can receive original image signal, and obtains original HSV hue coordinate according to original image signal.
Hold above-mentioned; Original HSV hue coordinate is tone (Hue)-saturation (Saturation)-brightness (Value) color space (HSV color space; Hereinafter to be referred as the HSV color space) interior some coordinates; So original HSV hue coordinate can comprise a plurality of coordinate figures, promptly original HSV hue coordinate comprises an original tone value, an initial saturation value and an original brightness value.
The original image signal that color monitor 100 is received comprises an original rgb color model value; Wherein original rgb color model value is R-G-B colour model (RGB color model; Can be described as the three primary colors pattern again; Hereinafter to be referred as the rgb color model) in wherein one group of parameter value, and the form of original rgb color model value can be the rgb signal of any forms such as 24 bit formats or 48 bit formats.
In detail, be example with the original rgb color model value of 24 bit formats, original rgb color model value is (r; G, b), wherein r, g and b are respectively red, green and blue parameter value; And r, g and b three's minimum value is zero, and maximum is 255, i.e. 0≤r, g, b≤255.
The parameter value of r, g or b is big more, representes that the color of original rgb color model value representative is more approaching red, green or blue, for example when (when r, g b) were (255,0,0), the color of representing original rgb color model value representative was for red.In like manner, when (when r, g b) were (0,0,255), the color of representing original rgb color model value representative was for blue.
The step that obtains original HSV hue coordinate comprises the original rgb color model value of conversion, is about to original rgb color model value and converts original HSV hue coordinate to.This conversion is the space conversion that belongs between rgb color model and the HSV color space, and general color science textbook all has the method that discloses this space conversion.Therefore, the method that converts original rgb color model value to original HSV hue coordinate belongs under the present invention and has the known technology that common knowledge the knowledgeable is known in the technical field, so do not do introduction at this.
See also Fig. 2, after carrying out step S102, then, carry out step S104,, original HSV color coordinate conversion is become an adjustment HSV hue coordinate promptly according to caidiao opera entire data of the same colour.Color adjustment data comprise accent weighted value of the same colour, a saturation weighted value and a luminance weights value; And the method that produces color adjustment data can comprise step: adjust a monochromatic parameter group, wherein tone weighted value, saturation weighted value and luminance weights value are to produce according to this monochromatic parameter group of adjustment.
Above-mentioned monochromatic parameter group is meant the parameter value of single kind of color, and it for example is the parameter value of redness, green, blueness, carmetta, yellow or Indigo, and monochromatic parameter group comprises a monochromatic scheme value, a monochromatic intensity value and a monochromatic brightness value.For example, when monochromatic parameter group was red parameter value, red parameter value comprised a red tone value, a red saturation scale value and a red brightness value.In like manner, when monochromatic parameter group was yellow parameter value, yellow parameter value comprised a yellow tone value, a yellow intensity value and a yellow brightness value.
But; Color adjustment data also can see through a plurality of monochromatic parameter group of adjustment and produce; The method that for example produces color adjustment data comprises step: adjust a red parameter group, a green parameter group and a blue parameter group, promptly adjust red tone value, red saturation scale value and red brightness value; Adjustment green tone value, green saturation value and green brightness value; And adjustment blue color value, blue saturation value and blue brightness value.
Certainly, the method that produces color adjustment data also can be adjustment one carmetta parameter group, a yellow parameter group and an Indigo parameter group, just adjusts above-mentioned carmetta tone value, carmetta intensity value and carmetta brightness value; Adjust above-mentioned yellow tone value, yellow intensity value and yellow brightness value; And adjust above-mentioned Indigo tone value, Indigo intensity value and Indigo brightness value.
In addition, color adjustment data also can be to produce through six monochromatic parameter group of adjustment, and these six monochromatic parameter group are respectively red parameter group, green parameter group, blue parameter group, carmetta parameter group, yellow parameter group and Indigo parameter group.In other words; The method that produces color adjustment data can be the above-mentioned red parameter group of adjustment, green parameter group, blue parameter group, carmetta parameter group, yellow parameter group and Indigo parameter group, six monochromatic scheme value, monochromatic intensity value and monochromatic brightness value.
See also Figure 1A and Fig. 2, color adjustment data can be to see through the user to adjust the image setting of color monitor 100 and produce.In detail; Utilize screen display technology (On-Screen Display, OSD), at least one monochromatic parameter group (comprising monochromatic scheme value, monochromatic intensity value and monochromatic brightness value) can be presented in the display frame 120; Set button 110 and see through to push; The user can be with the hobby of oneself, or according in the set point of building, adjust monochromatic scheme value, monochromatic intensity value and monochromatic brightness value.
The two all is the coordinate in the HSV color space for adjustment HSV hue coordinate and original HSV hue coordinate, so adjustment HSV hue coordinate comprises a plurality of coordinate figures.In detail, adjustment HSV hue coordinate comprises an adjustment tone value, an adjustment intensity value and an adjustment brightness value, and color adjustment data, original HSV hue coordinate and adjustment HSV hue coordinate satisfy following relational expression (1), (2) and (3):
H’＝H+Wh...........................(1)
S’＝S×Ws..........................(2)
V’＝V×Wv..........................(3)
Wherein H is original tone value, and S is the initial saturation value, and V is the original brightness value.H ' is the adjustment tone value, and S ' is the adjustment intensity value, and V ' is the adjustment brightness value.Wh is the tone weighted value, and Ws is the saturation weighted value, and Wv is the luminance weights value.The numerical value of tone weighted value Wh is between-30 degree to 30 degree, and the two numerical value of saturation weighted value Ws and luminance weights value Wv is then between 0 to 1.
Can learn with (3) from above-mentioned relation formula (1), (2); Adjustment tone value H ' equals original tone value H and the two addition of tone weighted value Wh; Adjustment intensity value S ' equals initial saturation value S and saturation weighted value Ws, and the two multiplies each other, and equals original brightness value V and luminance weights value Wv the two multiplies each other and adjust brightness value V '.
See also Figure 1B and Fig. 2; After carrying out step S104, then, carry out step S106; Just will adjust the HSV color coordinate conversion becomes one to revise the HSV hue coordinate; Wherein revising the HSV hue coordinate is the some coordinates in the HSV color space, comprises a plurality of coordinate figures and revise the HSV hue coordinate, just one revises tone value, a correction intensity value and a correction brightness value.
In the present embodiment, revising the HSV hue coordinate is according to the initial saturation value, and conversion adjustment HSV hue coordinate forms.In detail, adjustment HSV hue coordinate satisfies following relational expression (4), (5) and (6) with correction HSV hue coordinate:
H”＝(1-Sm)×H+Sm×H’...............(4)
S”＝(1-Sm)×S+Sm×S’...............(5)
V”＝(1-Sm)×V+Sm×V’...............(6)
H wherein " for revising tone value, S " for revising intensity value, V " for revising brightness value, and H, S, V, H ', S ' and the V ' definition in relational expression (4), (5) and (6) is with identical with the definition in (3) in relational expression (1), (2), so repeat no more.Sm is a saturation parameters, and saturation parameters Sm can change along with the variation of initial saturation value S.
Fig. 3 A is the curve chart of the corresponding saturation parameters of initial saturation value in one embodiment of the invention.See also Fig. 2 and Fig. 3 A, the Bm shown in Fig. 3 A is a first boundary value, and BM is second boundary value, and wherein the first boundary value Bm and the second boundary value BM are all certain two numerical value of initial saturation value S, and the second boundary value BM is greater than first boundary value Bm.
For example, in the present embodiment, the second boundary value BM can be 0.7, and first boundary value Bm can be 0.3.But, in the embodiment that other does not illustrate, the two also can be the numerical value beyond 0.3 and 0.7 for the first boundary value Bm and the second boundary value BM, so stress that at this it is that 0.3, the second boundary value BM is 0.7 that the present invention does not limit first boundary value Bm.
Can learn that from the curve chart shown in Fig. 3 A saturation parameters Sm and initial saturation value S satisfy following relational expression (7), (8) and (9):
When 0≤S＜Bm, Sm * Bm=S............... (7)
When Bm≤S≤BM, Sm=1.................. (8)
When BM＜S≤1, Sm * (BM-1)=S-1......... (9)
According to above relational expression (4) to relational expression (9); When the initial saturation value S of original HSV hue coordinate is a maximum; Be that initial saturation value S equals at 1 o'clock; Saturation parameters Sm can equal zero, to such an extent as to revise tone value H ", revise intensity value S " and revise brightness value V " three can equal original tone value H, initial saturation value S and original brightness value V respectively.
In like manner; When initial saturation value S is a minimum value; Be that initial saturation value S equals at 0 o'clock; Saturation parameters Sm also can equal zero, to such an extent as to revise tone value H ", revise intensity value S " and revise brightness value V " three also equals original tone value H, initial saturation value S and original brightness value V respectively.
Hence one can see that, and to relational expression (9), when the initial saturation value S of original HSV hue coordinate was maximum (being S=1) or minimum value (being S=0), original HSV hue coordinate was identical with correction HSV hue coordinate according to above relational expression (4).In other words, carrying out step S106, when revising the HSV hue coordinate to convert to, the original HSV hue coordinate with maximum saturation value or minimum intensity value can remain unchanged, and can let the scope of colour gamut D1 (seeing also Figure 1B) can not be changed like this.
In addition, from Fig. 3 A and relational expression (7) and (9), the corresponding relation between initial saturation value S and the saturation parameters Sm is a linear relationship.When initial saturation value S was between 0 to first boundary value Bm, saturation parameters Sm can increase progressively along with the increase of initial saturation value S.When initial saturation value S was between the second boundary value BM to 1, saturation parameters Sm can successively decrease along with the increase of initial saturation value S.
In addition; The corresponding relation between initial saturation value S shown in Fig. 3 A and saturation parameters Sm, in other embodiments, also there is the corresponding relation between another kind of initial saturation value S and the saturation parameters Sm; For example first boundary value Bm equals the second boundary value BM, shown in Fig. 3 B.
Fig. 3 B is the curve chart of the corresponding saturation parameters of initial saturation value in another embodiment of the present invention.See also Fig. 3 B, in Fig. 3 B, only have a boundary value BN, and, can learn that saturation parameters Sm and initial saturation value S satisfy following relational expression (10) and (11) from Fig. 3 B:
When 0≤S＜BN, Sm * BN=S................ (10)
When BN＜S≤1, Sm * (BN-1)=S-1.......... (11)
According to above relational expression (4), (5), (6), (10) and (11), when the initial saturation value S of original HSV hue coordinate was maximum or minimum value, original HSV hue coordinate also can be identical with correction HSV hue coordinate.Therefore, when carrying out step S106, the saturation parameters Sm shown in Fig. 3 B still can let the original HSV hue coordinate with maximum saturation value or minimum intensity value remain unchanged.
See also Figure 1A and Fig. 2, after carrying out step S106, then; Carry out step S108; Just, produce an output image signal, let the color monitor 100 can be according to output image signal display color image in display frame 120 according to revising the HSV hue coordinate.
Output image signal comprises an output rgb color model value; And the method that produces output image signal may further comprise the steps: will revise the HSV color coordinate conversion and become output rgb color model value; And output rgb color model value is the wherein one group of parameter value in the rgb color model; And the form of output rgb color model value is identical with the form of output rgb color model value, so the form of original rgb color model value can be the rgb signal of any forms such as 24 bit formats or 48 bit formats.
In addition; The conversion of revising between HSV hue coordinate and the output rgb color model value also belongs to the space conversion between rgb color model and the HSV color space; Therefore the method that will revise HSV color coordinate conversion one-tenth output rgb color model value is to belong in the affiliated technical field of the present invention to have the known technology that common knowledge the knowledgeable is known, so do not do introduction at this.
What deserves to be mentioned is that no matter be the embodiment shown in Fig. 3 A or Fig. 3 B, the corresponding relation between initial saturation value S and the saturation parameters Sm is linear relationship.Therefore, when color monitor 100 came the display color image according to output image signal, chromatic image visually can present the effect of color-grading, promptly can occur the zone of color gradient between adjacent two color lumps in the chromatic image.So, when the user adjusts image setting, can reduce the generation of profile phenomenon (contour), avoid the image quality of chromatic image to descend.
In sum; The color adjustment method of image of the present invention can be adjusted the chromatic image that color monitor shows; Let the user can be with the hobby of oneself; Or according to the interior construction definite value of color monitor, adjust chromatic image, so that color monitor can present the chromatic image of user's preference.
Secondly; When the color adjustment of carrying out image; The present invention can not change the scope of the colour gamut of color monitor, and lets the three primary colors (promptly red, green with blueness) of the chromatic image that color monitor appeared can distortion, guarantees the chromaticity of color monitor.
Moreover in the process of the color adjustment of image, the present invention more can let chromatic image visually present the effect of gradual change, preventing because of the improper profile phenomenon that takes place of color adjustment, and then the image quality of lifting chromatic image.
Though the present invention with preferred embodiment openly as above, so it is not in order to limiting the present invention, anyly has the knack of alike art, is not breaking away from the spirit and scope of the present invention, and institute does to change with the equivalence of retouching and replaces, and still is in the claim protection range of the present invention.
Claims (11)
1. the color adjustment method of an image is applied to a color monitor, it is characterized in that, this color monitor has a colour gamut, and the color adjustment method of this image may further comprise the steps:
From an original image signal, obtain an original HSV hue coordinate;
According to caidiao opera entire data of the same colour, should original HSV color coordinate conversion become an adjustment HSV hue coordinate; These color adjustment data comprise accent weighted value of the same colour, a saturation weighted value and a luminance weights value; This original HSV hue coordinate comprises an original tone value, an initial saturation value and an original brightness value; This adjustment HSV hue coordinate comprises an adjustment tone value, an adjustment intensity value and an adjustment brightness value, and these color adjustment data, this original HSV hue coordinate and this adjustment HSV hue coordinate satisfy following relational expression:
H’＝H+Wh；
S '=S * Ws; And
V’＝V×Wv；
Wherein H is this original tone value, and S is this initial saturation value, and V is this original brightness value;
H ' is this adjustment tone value, and S ' is this adjustment intensity value, and V ' is this adjustment brightness value;
Wh is this tone weighted value, and Ws is this saturation weighted value, and Wv is this luminance weights value;
Should adjust the HSV color coordinate conversion becomes one to revise the HSV hue coordinate; This correction HSV hue coordinate comprises that one revises tone value, a correction intensity value and a correction brightness value, and this adjustment HSV hue coordinate and this correction HSV hue coordinate satisfy following relational expression:
H”＝(1-Sm)×H+Sm×H’；
S "=(1-Sm) * S+Sm * S '; And
V”＝(1-Sm)×V+Sm×V’；
H wherein " be that this revises tone value, S " for this revises intensity value, V " be this correction brightness value;
Sm is a saturation parameters;
Revise the HSV hue coordinate according to this, produce an output image signal.
2. the color adjustment method of image as claimed in claim 1 is characterized in that, this original image signal comprises an original rgb color model value, and the step that obtains this original HSV hue coordinate comprises this original rgb color model value of conversion.
3. the color adjustment method of image as claimed in claim 2 is characterized in that, the form of this original rgb color model value is 24 bit formats or 48 bit formats.
4. the color adjustment method of image as claimed in claim 2 is characterized in that, the method that produces this output image signal may further comprise the steps:
Should revise the HSV color coordinate conversion and become an output rgb color model value.
5. the color adjustment method of image as claimed in claim 4 is characterized in that, the form of this original rgb color model value is identical with the form of this output rgb color model value.
6. the color adjustment method of image as claimed in claim 1 is characterized in that, the method that produces these color adjustment data may further comprise the steps:
Adjust at least one monochromatic parameter group, wherein should the monochrome parameter group comprise a monochromatic scheme value, a monochromatic intensity value and a monochromatic brightness value.
7. the color adjustment method of image as claimed in claim 6 is characterized in that, the quantity of this monochrome parameter group is a plurality of, and the method that produces this color adjustment data may further comprise the steps:
Adjust a red tone value, a red saturation scale value and a red brightness value;
Adjust a green tone value, a green saturation value and a green brightness value; And
Adjust a blue color value, a blue saturation value and a blue brightness value.
8. the color adjustment method of image as claimed in claim 6 is characterized in that, the quantity of this monochrome parameter group is a plurality of, and the method that produces this color adjustment data may further comprise the steps:
Adjust a carmetta tone value, a carmetta intensity value and a carmetta brightness value;
Adjust a yellow tone value, a yellow intensity value and a yellow brightness value; And
Adjust an Indigo tone value, an Indigo intensity value and an Indigo brightness value.
9. the color adjustment method of image as claimed in claim 1 is characterized in that, this correction HSV hue coordinate is according to this initial saturation value, changes this adjustment HSV hue coordinate and forms.
10. the color adjustment method of image as claimed in claim 1 is characterized in that, this saturation parameters satisfies following relational expression:
When 0≤S＜Bm, Sm * Bm=S;
Wherein Bm is a first boundary value,
This saturation parameters more satisfies following relational expression:
When BM＜S≤1, Sm * (BM-1)=S-1;
Wherein BM is one second boundary value.
11. the color adjustment method of image as claimed in claim 10 is characterized in that, this second boundary value is greater than this first boundary value, and this saturation parameters more satisfies following relational expression:
When Bm≤S≤BM, Sm=1,
Or this second boundary value equals this first boundary value.
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| CN109671399B (en) * | 2018-12-11 | 2020-08-18 | 惠科股份有限公司 | Driving method and driving system of display module and display device |
| CN110111744B (en) * | 2019-04-08 | 2021-01-08 | 重庆惠科金渝光电科技有限公司 | Driving method and driving system of display module and display device |
| WO2020207169A1 (en) * | 2019-04-08 | 2020-10-15 | 重庆惠科金渝光电科技有限公司 | Driving method and driving system for display panel, and display device |
| CN112911366B (en) * | 2019-12-03 | 2023-10-27 | 海信视像科技股份有限公司 | Saturation adjustment method and device and display equipment |
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