CN101169928B - Color regulation circuit, digit color regulation device and multimedia device applying same - Google Patents
Color regulation circuit, digit color regulation device and multimedia device applying same Download PDFInfo
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Abstract
A digital color adjusting device of a multimedia device adjusts the digital color of the pixel color data received thereby and transmits to the display unit of the multimedia device to display the color. The digital color adjusting device comprises a color phase different corresponding table, a saturation matching corresponding table, a brightness conversion corresponding table, and a nonlinear output corresponding table. The digital color adjusting device can be used for color domain matched nonlinear adjustment and/or nonlinear adjustment of independent color.
Description
Technical field
The present invention relates to a kind of color adjustment method and device of multimedia device, and be particularly related to a kind of color adjustment method and device that adjustment of colour gamut matched non-linear and/or the adjustment of independent look non-linear can be provided.
Background technology
Existing multimedia device (such as, display, television set, digital camera, digital code camera etc.) the color adjustment comprise that colour gamut coupling is whole with the hobby tone.So-called colour gamut matching ratio as, redness and green saturation are reduced or improve, or move yellow form and aspect chroma etc.And whole being meant a certain independent look of hobby tone as meadow, sky, the colour of skin etc., adjusted separately and do not influenced other color.
Be confined to form and aspect, saturation and the brightness adjustment of globality, general display can't provide the color adjustment of independent form and aspect.Some high-order display then provides six form and aspect adjustment on rank into and brightness (Gamma) to adjust, and can strengthen adjusting at specific independent look.
With existing color adjustment technology is example, RGB in the image is (red, green, indigo plant) to be converted to RGBCMY (red, green for color information, blue, green grass or young crops, fuchsin, Huang) six look information, carry out the adjustment of saturation (Saturation)/brightness (Intensity) again by the correspondence table (lookup table) of six looks and color control circuit, be converted to brightness (Y) at last, blue (Cb) exports image to red (Cr) signal.The correspondence table of six looks is concerned by an original image and adjusted target image to be set up.
In addition, another kind of known technology then carries out color space with digital color (RGB) and is converted to the CIELab color space, converts brightness-chroma-form and aspect (LCH) again to.Then, in default Color Range, carry out continuously and chroma conversion smoothly the hobby look that obtains presetting output.But its shortcoming is that its hardware structure is comparatively complicated, causes circuit cost to improve.
But, above-mentioned prior art can't provide best and conforming output result.In addition, present color adjustment also can't provide independent look non-linear adjustment.
Summary of the invention
In view of this, one of purpose of the present invention just provides a kind of color adjustment method and the device that can realize the multimedia device of adjustment of colour gamut matched non-linear and/or the adjustment of independent look non-linear.
Another object of the present invention is to propose a kind of color adjustment method and device of multimedia device, the feasibility height of its software and hardware.
Another object of the present invention is to propose a kind of color adjustment method and device of multimedia device, color is adjusted principle and is not simply needed complex calculation, can reach the requirement of (Real-Time) in real time.
Another object of the present invention is to propose a kind of color adjustment method and device of multimedia device, it is remarkable that its color is adjusted effect.
Another object of the present invention is to propose a kind of color adjustment method and device of multimedia device, it has the color adjustment capability of 3D (three-dimensional).
The present invention proposes a kind of multimedia device, comprise: a digit color regulation device, receive the first image color data that drive circuit produced, utilize facial difference correspondence table of the same colour, one saturated coupling correspondence table, an one brightness transition correspondence table and a non-linear output correspondence table are carried out color to these first image color data and are adjusted to one second image color data, carry out to be sent to a display unit; And a man-machine interface, producing an adjusted value in response to the shown display image of this display unit, this adjusted value is relevant for the foundation of above-mentioned correspondence table.
This digit color regulation device comprises: a color change-over circuit receives these first image color data circumstances in which people get things ready for a trip coloured silk of going forward side by side and converts one the 3rd image color data to; Phase transformation circuit of the same colour receives the circumstances in which people get things ready for a trip phase transformation of going forward side by side of the 3rd image color data and becomes one the 4th image color data; One color regulation circuit, comprise this form and aspect difference correspondence table, this saturated coupling correspondence table, this brightness transition correspondence table and this non-linear output correspondence table, according to above-mentioned correspondence table the 4th image color data are carried out color and be adjusted to one the 5th image color data; One against the form and aspect change-over circuit, receives the 5th image color data and carry out contrary form and aspect to convert one the 6th image color data to; And a contrary color conversion circuit, receive the 6th image color data and carry out contrary color conversion and become this second image color data.
This color regulation circuit comprises: this form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence; One first adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal; This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence; One first multiplier, it is one first multiplication result that this saturation signal and this saturated matched signal are multiplied each other; This brightness transition correspondence table draws a luminance gain signal according to this form and aspect signal with correspondence; One second multiplier is one second multiplication result with this luminance signal and this luminance gain signal multiplication; This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal; One first selected cell produces an adjustment back saturation signal according to limited signal on this saturation and this first multiplication result; And one second selected cell, produce one according to limited signal in this brightness and this second multiplication result and adjust the back luminance signal.
Perhaps, this color regulation circuit comprises: this form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence; One second adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal; This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence; One the 3rd multiplier, it is one the 3rd multiplication result that this saturation signal and this saturated matched signal are multiplied each other; This brightness transition correspondence table, according to this form and aspect signal and this luminance signal with the corresponding luminance gain signal that draws; One the 4th multiplier is one the 4th multiplication result with this luminance signal and this luminance gain signal multiplication; This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal; One the 3rd selected cell produces an adjustment back saturation signal according to limited signal on this saturation and the 3rd multiplication result; And one the 4th selected cell, produce one according to limited signal in this brightness and the 4th multiplication result and adjust the back luminance signal.
Perhaps, this color regulation circuit comprises: this form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence; One the 3rd adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal; This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence; One the 5th multiplier, it is one the 5th multiplication result that this saturation signal and this saturated matched signal are multiplied each other; This brightness transition correspondence table, according to this form and aspect signal and this luminance signal with the corresponding conversion luminance signal that draws; This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal; One the 5th selected cell produces an adjustment back saturation signal according to limited signal on this saturation and the 5th multiplication result; And one the 6th selected cell, produce one according to limited signal in this brightness and this conversion luminance signal and adjust the back luminance signal.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 shows the circuit diagram of the embodiment of the invention.
Fig. 2 shows the circuit block diagram of digit color regulation device.
Fig. 3 a～3c display color is adjusted three kinds of colors adjustment modes that circuit 25 is carried out.
Fig. 4 and Fig. 5 show the initial condition of form and aspect difference correspondence table and saturated coupling correspondence table.
Fig. 6 shows the initial condition of non-linear output correspondence table.
The initial condition of Fig. 7 a～7c display brightness conversion correspondence table.
User's man-machine interface when Fig. 8, Fig. 9, Figure 10 a～10c, Figure 11 a～11b are presented at the adjustment of colour gamut coupling respectively, the software interface of non-linear output correspondence table, and form and aspect difference correspondence table, saturated coupling correspondence table and brightness transition correspondence table.
Figure 12, Figure 13, Figure 14 a～14c, Figure 15 a～15b and Figure 16 a～16b are presented at the user man-machine interface of independent tone when whole, the software interface of non-linear output correspondence table respectively, and form and aspect difference correspondence table, saturated coupling correspondence table and brightness transition correspondence table.
Figure 17 a～17c be presented at carry out simultaneously colour gamut coupling with independent tone form and aspect difference correspondence table, saturated coupling correspondence table and the brightness transition correspondence table when whole.
The primary clustering symbol description
11: drive circuit
12: digit color regulation device
13: display unit
14: device Control Software man-machine interface
15,15 ', 15 ": form and aspect difference correspondence table
16,16 ', 16 ": saturated coupling correspondence table
17,17 ', 17 ": the brightness transition correspondence table
18,18 ', 18 ": non-linear output correspondence table
21: color conversion circuit
23: the form and aspect change-over circuit
25,25 ', 25 ": color regulation circuit
27: contrary form and aspect change-over circuit
29: contrary color conversion circuit
301,311,321: adder
302,303,312,313,322: multiplier
304,305,314,315,324,325: comparator
Embodiment
In order to make content of the present invention more clear, below the example that can implement according to this really as the present invention especially exemplified by embodiment.
The embodiment of the invention provides the digital color method of adjustment and the device thereof of a kind of multimedia device (as display, television set, digital camera, digital code camera etc.).Digit color regulation device receives the pixel color data that drive circuit is sent out, and the display unit that carries out being resent to after the digital color adjustment multimedia device shows.This digit color regulation device comprises that independent tone puts in order form and aspect difference correspondence table, the mutually saturated coupling correspondence table of polychrome, multilayer brightness transition correspondence table and non-linear output correspondence table.This digit color regulation device can carry out the colour gamut coupling that the best is drilled the look characteristic respectively or simultaneously according to demand, and the whole independent tone of hobby tone is put in order.The user watch or measure on the display unit the adjustment pattern with the input adjusted value.Can set up the continuity of correspondence table according to adjusted value and adjust curve.This continuity is adjusted the mode of setting up of curve can utilize software mode or hardware mode.Thus, can reach the colour gamut matched non-linear adjusts and independent look non-linear adjustment effect.
Fig. 1 shows the circuit diagram of the embodiment of the invention.As shown in Figure 1, drive circuit 11 transmits pixel color data R1G1B1 and gives digit color regulation device 12.This digit color regulation device 12 carries out the digital color adjustment according to the form and aspect difference correspondence table 15 of its inside, saturated coupling correspondence table 16, brightness transition correspondence table 17 and non-linear output correspondence table 18, to obtain pixel color data R6G6B6.Pixel color data R6G6B6 is sent to display unit 13 and shows.
The user watches or measures the adjustment pattern on the display unit, the input adjusted value.Set up the continuity of each correspondence table 15～18 according to the adjusted value that the user imported and adjust curve, reach colour gamut coupling and independent look non-linear adjustment effect.The user can see through device Control Software man-machine interface 14 input adjusted values, then the adjusted value or the good correspondence table of setting up is inputed to digit color regulation device 12.
Fig. 2 shows the circuit block diagram of digit color regulation device 12.Digit color regulation device 12 comprises: color conversion circuit 21, and R1G1B1 converts TV signal Y2U2V2 to the pixel color data; Form and aspect change-over circuit 23 converts TV signal Y2U2V2 to another chrominance signal Y3C3H3; Color regulation circuit 25 can carry out the color adjustment of chrominance signal Y3C3H3, to produce chrominance signal Y4C4H4; Contrary form and aspect change-over circuit 27 can be converted to chrominance signal Y4C4H4 TV signal Y5U5V5; And contrary color conversion circuit 29, TV signal Y5U5V5 can be converted to pixel color data R6G6B6, show to export display unit 13 to.Above-mentioned correspondence table 15～18 is to be included in the color regulation circuit 25.
In addition, TV signal YUV also can use similar empty color spacing wave Y ', B '-Y ', and R '-Y ' or YCbCr replace.
In this embodiment, the color adjustment mode that color regulation circuit 25 is carried out has three kinds, and certainly, the present invention is not limited to this.Please refer to Fig. 3 a～3c, it shows this three kinds of colors adjustment modes.
At first, first kind of color adjusted mode shown in Fig. 3 a.Form and aspect signal H3 draws hue difference xor signal Δ H ,-180 °≤Δ H≤180 ° via form and aspect difference correspondence table 15 correspondences.Adder 301 addition hue difference xor signal Δ H and form and aspect signal H3 become form and aspect signal H4.Form and aspect signal H3 draws saturated matched signal Gc, 0.5≤Gc≤2 via saturated coupling correspondence table 16 correspondences.Multiplier 302 is with saturated matched signal Gc and saturation signal C3 another saturation signal Cg that multiplies each other.Saturation signal C3 draws a saturated limited signal Cm of going up via non-linear output correspondence table 18 correspondences.Comparator 305 is saturation signal Cg and the saturated limited signal Cm that goes up relatively, and takes out smaller value as adjusting back saturation signal C4.So, the non-linear adjustment effect that can reach capacity.Form and aspect signal H3 draws luminance gain value Gy, 0.5≤Gy≤2 via brightness transition correspondence table 17 correspondences.Multiplier 303 multiplies each other luminance gain value Gy and brightness signal Y 3 becomes another brightness signal Y g.Limited signal Ym in the brightness that brightness signal Y 3 draws via non-linear output correspondence table 18 correspondences.Limited signal Ym in comparator 304 comparison brightness signal Yg and the brightness, and get its little person as adjusting back brightness signal Y 4, reach luminance non-linearity thus and adjust effect.
Second kind of color adjusted mode shown in Fig. 3 b.Basically, first kind of difference with second kind of color adjustment mode is how to produce brightness signal Y 4 at least.Both are similar basically for the producing method of form and aspect signal H4 and saturation signal C4, so can no longer repeat at this.Form and aspect signal H3 and brightness signal Y 3 are via brightness transition correspondence table 17 ' the corresponding luminance gain value Gy that draws these form and aspect at the brightness interlayer, 0.5≤Gy≤2.Multiplier 313 multiplies each other luminance gain value Gy and brightness signal Y 3 to become and adjusts back brightness signal Y g.Comparator 314 is relatively adjusted limited signal Ym in back brightness signal Y g and the brightness, and gets its little person as brightness signal Y 4, reaches luminance non-linearity thus and adjusts effect.
The third color is adjusted mode shown in Fig. 3 c.Basically, first kind of difference with the third color adjustment mode is how to produce brightness signal Y 4 at least.Both are similar basically for the producing method of form and aspect signal H4 and saturation signal C4, so can no longer repeat at this.Form and aspect signal H3 and brightness signal Y 3 are via brightness transition correspondence table 17 " the corresponding transformed luminance value Yy that draws these form and aspect at the brightness interlayer, the 0≤Yy≤luminance bit degree of depth.Comparator 324 compares limited signal Ym in transformed luminance value Yy and the brightness, and gets its little person as brightness signal Y 4, reaches luminance non-linearity thus and adjusts effect.
Above-mentioned three kinds of colors are adjusted the form and aspect difference correspondence table of mode and initial condition such as Fig. 4 and shown in Figure 5 of saturated coupling correspondence table.In the initial condition owing to there is not the change of form and aspect and saturation, so Δ H be 0 and Gc be 1.Chrominance signal Y3C3H3 will can not carry out any form and aspect/saturated adjustment this moment.That is to say the pixel color data R1G1B1 that the pixel color data R6G6B6 that is exported can equal to import.
The initial condition of the non-linear output correspondence table of above-mentioned three kinds of colors adjustment mode as shown in Figure 6.In the initial condition owing to there is not a non-linear adjustment, this moment chrominance signal Y3C3H3 will can not carry out non-linear saturated/the brightness adjustment.That is to say the pixel color data R1G1B1 that the pixel color data R6G6B6 that is exported can equal to import.
The initial condition of the brightness transition correspondence table of first kind of color adjustment mode is shown in Fig. 7 a.Owing to there is not the change of brightness, chrominance signal Y3C3H3 will can not carry out the brightness adjustment this moment in the initial condition.That is to say the pixel color data R1G1B1 that the pixel color data R6G6B6 that is exported can equal to import.
Second kind of initial condition of brightness transition correspondence table of adjusting mode with the third color is shown in Fig. 7 b and 7c, and the brightness number of plies wherein is set at 5 layers and to be 8 with input signal R/G/B be example.So ground floor is 0, the second layer be 64, the 3rd layers be 128, the 4th layers be 192, layer 5 is 255.The design of brightness number of plies amount better haves three layers above.Owing to there is not the change of brightness, chrominance signal Y3C3H3 will can not carry out the brightness adjustment this moment in the initial condition.That is to say the pixel color data R1G1B1 that the pixel color data R6G6B6 that is exported can equal to import.
In this embodiment, the digital color adjustment has three types: (1) colour gamut coupling is adjusted; (2) it is whole with independent tone that independent tone whole (3) carries out the colour gamut coupling simultaneously.Be described below respectively:
(1) the colour gamut coupling is adjusted
When carrying out colour gamut coupling when adjusting,, allow the user watch in real time or measure the adjusted result of color such as the color color lump that available six squares are RGBCMY.User's man-machine interface that the colour gamut coupling is adjusted as shown in Figure 8.When the above-mentioned first kind of color of application adjusted mode, drag the form and aspect scroll bar behind the colour axis that the user selects to adjust, change the output form and aspect of this colour axis; The user drags saturated scroll bar, and to change the output of this colour axis saturated; The user drags the output brightness that the brightness scroll bar changes this colour axis.If use second kind or the third color adjustment mode, select the brightness layer that to adjust behind the colour axis that the user selects to adjust again; The user drags the output brightness that the brightness scroll bar changes this brightness layer.The software interface of non-linear output correspondence table as shown in Figure 9.The user produces non-linear curve of output with the non-linear adjustment point of mouse drag.
The user is imported information such as the form and aspect difference value of multiaxis, saturated matching value, brightness transition value and non-linear output valve, see through numerical method and set up continuity adjustment curve.In this embodiment, multiaxis is defined as at least 3 hue axis, maximum 12 hue axis.Continuity adjust curve can use earlier numerical method (as various suitable interpolation methods) set up good after, just be downloaded in the correspondence table of digit color regulation device (just reaching) with software mode.Perhaps, digit color regulation device is set up continuity according to the adjusted value that the user imported and is adjusted curve (just reaching with hardware mode).So, can reach the colour gamut matched non-linear and adjust output effect.
Under the situation of using above-mentioned first kind of color adjustment mode, as the user red color phase increase by 10 and green hue are reduced 10, and yellow saturation increases by 1.2 times and blue-green saturation and increases by 0.8 times, 1.1 times of red in addition brightness increases and blue brightness increase by 0.9 times, and the form and aspect difference correspondence table of being set up out, saturated coupling correspondence table and brightness transition correspondence table are shown in Figure 10 a～10c.Adjust under the situation of mode using above-mentioned second kind or the third color, with the red color phase second layer and 1.2 times of the 4th layer of brightness increases, the brightness transition correspondence table of being set up out is shown in Figure 11 a or 11b as the user.
(2) independent tone is whole
The software interface that independent tone is put in order as shown in figure 12.Under the situation of using first kind of color adjustment mode, the independent look that the user can select or newly-increased desire is adjusted, drag the form and aspect scroll bar and change the output form and aspect of this independent look, dragging saturated scroll bar, change the output of this independent look saturated, drags the output brightness that the brightness scroll bar changes this independent look.Adjust under the situation of mode using above-mentioned second kind or the third color, the brightness layer that will adjust of selection again behind the independent look that the user selects to adjust drags the output brightness that the brightness scroll bar changes this brightness layer.The software interface of non-linear output correspondence table as shown in figure 13.The user produces non-linear curve of output with the non-linear adjustment point of mouse drag.
The user is imported information such as the form and aspect difference value of multiaxis, saturated matching value, brightness transition value and non-linear output valve, see through numerical method and set up continuity adjustment curve.After continuity is adjusted curve and can be used numerical method to set up earlier, just be downloaded in the correspondence table of digit color regulation device (just reaching) with software mode.Perhaps, digit color regulation device is set up continuity according to the adjusted value that the user imported and is adjusted curve (just reaching with hardware mode).So, can reach independent look non-linear adjustment output effect.The whole representative of independent tone is carried out form and aspect, saturated and brightness adjustment to a certain form and aspect, and it adjusts the result only influences near the certain limit of these form and aspect.
Under the situation of using above-mentioned first kind of color adjustment mode, as the user with the form and aspect of the colour of skin increase by 5, saturation increases by 1.4 times and brightness increases by 1.2 times, and the form and aspect of sky minimizing 5,1.2 times of saturation increases and brightness increase by 0.9 times, and the form and aspect difference correspondence table of being set up out, saturated coupling correspondence table and brightness transition correspondence table are shown in Figure 14 a～14c.Adjust under the situation of mode using above-mentioned second kind or the third color, as the user with the form and aspect of the colour of skin second and third, four layers of brightness increase by 1.2 times, the brightness transition correspondence table of being set up out is shown in Figure 15 a or 15b.Adjust under the situation of mode using above-mentioned second kind or the third color, as the user third and fourth layer brightness of sky form and aspect is increased by 0.9 times, the brightness transition correspondence table of being set up out is shown in Figure 16 a or 16b.
(3) carrying out the colour gamut coupling simultaneously puts in order with independent tone
In addition, also can carry out the colour gamut coupling simultaneously puts in order with independent tone.The whole software interface of independent tone by adjust software interface and Figure 12 such as the colour gamut coupling of Fig. 8 obtains the whole information such as form and aspect difference value, saturated matching value, brightness transition value and non-linear output valve of multiaxis and independent tone.After continuity is adjusted curve and can be used numerical method to set up earlier, just be downloaded in the correspondence table of digit color regulation device (just reaching) with software mode.Perhaps, digit color regulation device is set up continuity according to the adjusted value that the user imported and is adjusted curve (just reaching with hardware mode).So, can reach and carry out colour gamut coupling and the whole output effect of independent tone simultaneously.
Under the situation of using above-mentioned first kind of color adjustment mode, the form and aspect difference correspondence table of being set up out, saturated coupling correspondence table and brightness transition correspondence table are shown in Figure 17 a～17c.Adjust under the situation of mode using above-mentioned first kind of color, and the adjustment example of second kind or the third brightness transition correspondence table mode, the brightness transition correspondence table of being set up out is shown in Figure 11 a/11b, Figure 15 a/15b or Figure 16 a/16b.
See through present embodiment, can be respectively or carry out the colour gamut matched non-linear simultaneously and adjust and the adjustment of independent look non-linear, so that best and consistent output effect to be provided.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art should carry out changes and improvements without departing from the spirit and scope of the present invention, so protection scope of the present invention should be as the criterion with the qualification of claims.
Claims (8)
1. multimedia device comprises:
One drive circuit produces one first image color data;
One digit color regulation device, receive this first image color data, utilize facial difference correspondence table of the same colour, a saturated coupling correspondence table, a brightness transition correspondence table and a non-linear output correspondence table are carried out color to these first image color data and are adjusted to one second image color data;
One display unit receives and shows this second image color data; And
One man-machine interface, in response to one of the shown display image of this display unit and produce an adjusted value, this adjusted value is relevant for the foundation of above-mentioned correspondence table;
Wherein this digit color regulation device comprises:
One color change-over circuit receives these first image color data circumstances in which people get things ready for a trip coloured silk of going forward side by side and converts one the 3rd image color data to;
Phase transformation circuit of the same colour receives the circumstances in which people get things ready for a trip phase transformation of going forward side by side of the 3rd image color data and becomes one the 4th image color data;
One color regulation circuit, comprise this form and aspect difference correspondence table, this saturated coupling correspondence table, this brightness transition correspondence table and this non-linear output correspondence table, according to above-mentioned correspondence table the 4th image color data are carried out color and be adjusted to one the 5th image color data;
One against the form and aspect change-over circuit, receives the 5th image color data and carry out contrary form and aspect to convert one the 6th image color data to; And
One against color conversion circuit, receives the 6th image color data and carry out contrary color conversion to become this second image color data.
2. multimedia device as claimed in claim 1, wherein the 4th image color data comprise phase signals of the same colour, a saturation signal and a luminance signal, this color regulation circuit comprises:
This form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence;
One first adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal;
This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence;
One first multiplier, it is one first multiplication result that this saturation signal and this saturated matched signal are multiplied each other;
This brightness transition correspondence table draws a luminance gain signal according to this form and aspect signal with correspondence;
One second multiplier is one second multiplication result with this luminance signal and this luminance gain signal multiplication;
This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal;
One first selected cell produces an adjustment back saturation signal according to limited signal on this saturation and this first multiplication result; And
One second selected cell produces an adjustment back luminance signal according to limited signal in this brightness and this second multiplication result.
3. multimedia device as claimed in claim 1, wherein the 4th image color data comprise phase signals of the same colour, a saturation signal and a luminance signal, this color regulation circuit comprises:
This form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence;
One second adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal;
This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence;
One the 3rd multiplier, it is one the 3rd multiplication result that this saturation signal and this saturated matched signal are multiplied each other;
This brightness transition correspondence table, according to this form and aspect signal and this luminance signal with the corresponding luminance gain signal that draws;
One the 4th multiplier is one the 4th multiplication result with this luminance signal and this luminance gain signal multiplication;
This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal;
One the 3rd selected cell produces an adjustment back saturation signal according to limited signal on this saturation and the 3rd multiplication result; And
One the 4th selected cell produces an adjustment back luminance signal according to limited signal in this brightness and the 4th multiplication result.
4. multimedia device as claimed in claim 1, wherein the 4th image color data comprise phase signals of the same colour, a saturation signal and a luminance signal, this color regulation circuit comprises:
This form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence;
One the 3rd adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal;
This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence;
One the 5th multiplier, it is one the 5th multiplication result that this saturation signal and this saturated matched signal are multiplied each other;
This brightness transition correspondence table, according to this form and aspect signal and this luminance signal with the corresponding conversion luminance signal that draws;
This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal;
One the 5th selected cell produces an adjustment back saturation signal according to limited signal on this saturation and the 5th multiplication result; And
One the 6th selected cell produces an adjustment back luminance signal according to limited signal in this brightness and this conversion luminance signal.
5. digit color regulation device receives one first image color data of one drive circuit, and this digit color regulation device comprises:
One color change-over circuit receives these first image color data circumstances in which people get things ready for a trip coloured silk of going forward side by side and converts one second image color data to;
Phase transformation circuit of the same colour receives the circumstances in which people get things ready for a trip phase transformation of going forward side by side of these second image color data and becomes one the 3rd image color data;
One color regulation circuit, comprise this form and aspect difference correspondence table, this saturated coupling correspondence table, this brightness transition correspondence table and this non-linear output correspondence table, according to above-mentioned correspondence table the 3rd image color data are carried out color and be adjusted to one the 4th image color data;
One against the form and aspect change-over circuit, receives the 4th image color data and carry out contrary form and aspect to convert one the 5th image color data to; And
One against color conversion circuit, receives the 5th image color data and carry out contrary color conversion to become the 6th image color data.
6. digit color regulation device as claimed in claim 5, wherein the 3rd image color data comprise phase signals of the same colour, a saturation signal and a luminance signal, this color regulation circuit comprises:
This form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence;
One first adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal;
This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence;
One first multiplier, it is one first multiplication result that this saturation signal and this saturated matched signal are multiplied each other;
This brightness transition correspondence table draws a luminance gain signal according to this form and aspect signal with correspondence;
One second multiplier is one second multiplication result with this luminance signal and this luminance gain signal multiplication;
This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal;
One first selected cell produces an adjustment back saturation signal according to limited signal on this saturation and this first multiplication result; And
One second selected cell produces an adjustment back luminance signal according to limited signal in this brightness and this second multiplication result.
7. digit color regulation device as claimed in claim 5, wherein the 3rd image color data comprise phase signals of the same colour, a saturation signal and a luminance signal, this color regulation circuit comprises:
This form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence;
One second adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal;
This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence;
One the 3rd multiplier, it is one the 3rd multiplication result that this saturation signal and this saturated matched signal are multiplied each other;
This brightness transition correspondence table, according to this form and aspect signal and this luminance signal with the corresponding luminance gain signal that draws;
One the 4th multiplier is one the 4th multiplication result with this luminance signal and this luminance gain signal multiplication;
This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal;
One the 3rd selected cell produces an adjustment back saturation signal according to limited signal on this saturation and the 3rd multiplication result; And
One the 4th selected cell produces an adjustment back luminance signal according to limited signal in this brightness and the 4th multiplication result.
8. digit color regulation device as claimed in claim 5, wherein the 3rd image color data comprise phase signals of the same colour, a saturation signal and a luminance signal, this color regulation circuit comprises:
This form and aspect difference correspondence table draws facial difference signal of the same colour according to this form and aspect signal with correspondence;
One the 3rd adder adds up to an adjustment back form and aspect signal with this form and aspect signal and this hue difference xor signal;
This saturated coupling correspondence table draws a saturated matched signal according to this form and aspect signal with correspondence;
One the 5th multiplier, it is one the 5th multiplication result that this saturation signal and this saturated matched signal are multiplied each other;
This brightness transition correspondence table, according to this form and aspect signal and this luminance signal with the corresponding conversion luminance signal that draws;
This non-linear output correspondence table draws in the brightness limited signal on the limited signal and a saturation according to this luminance signal is corresponding with this saturation signal;
One the 5th selected cell produces an adjustment back saturation signal according to limited signal on this saturation and the 5th multiplication result; And
One the 6th selected cell produces an adjustment back luminance signal according to limited signal in this brightness and this conversion luminance signal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102752605A (en) * | 2011-09-30 | 2012-10-24 | 新奥特（北京）视频技术有限公司 | Method and system for regulating image/video color saturation degree |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8466936B2 (en) | 2008-10-21 | 2013-06-18 | Hisense Beijing Electric Co., Ltd. | Color gamut mapping method for multimedia equipment, a television and a color processing apparatus |
| CN102065311B (en) * | 2009-11-17 | 2012-08-29 | 瑞昱半导体股份有限公司 | Color management circuit and related color management method |
| EP3399735A1 (en) * | 2017-05-02 | 2018-11-07 | Thomson Licensing | Method and device for color gamut mapping |
| CN109587467A (en) * | 2018-12-03 | 2019-04-05 | 新视家科技(北京)有限公司 | A kind of color space converting circuit |
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| CN1510929A (en) * | 2002-12-20 | 2004-07-07 | ���ǵ�����ʽ���� | Colour signal correcting unit and metod, image processing system therewith |
| CN1658678A (en) * | 2004-02-19 | 2005-08-24 | 索尼公司 | Image processing apparatus and image processing method |
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| CN1510929A (en) * | 2002-12-20 | 2004-07-07 | ���ǵ�����ʽ���� | Colour signal correcting unit and metod, image processing system therewith |
| CN1658678A (en) * | 2004-02-19 | 2005-08-24 | 索尼公司 | Image processing apparatus and image processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102752605A (en) * | 2011-09-30 | 2012-10-24 | 新奥特（北京）视频技术有限公司 | Method and system for regulating image/video color saturation degree |
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