CN106205462A

CN106205462A - Sub-pix image processing method

Info

Publication number: CN106205462A
Application number: CN201510219676.4A
Authority: CN
Inventors: 赵小明; 周梦姣; 滕瑞玲; 李佳; 何国经; 袁胜春
Original assignee: Xidian University
Current assignee: Xidian University
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2016-12-07

Abstract

The present invention relates to sub-pix image processing method, including: the red, green and blue sub-pix color data of each physical picture element in the multiple physical picture elements corresponding to display floater that acquisition obtains because original image is carried out sub-pix down-sampling, original image includes that multiple original pixels and each original pixels include corresponding red, green and blue color data；And to the red, green and blue sub-pix color data of multiple physical picture elements with special algorithm carry out complementary color process obtain processing corresponding to the red, green and blue complementary color of each physical picture element after sub-pix color data carry out picture for display floater and show generating destination image data.The present invention uses specific sub-pix color data complementary color Processing Algorithm that the sub-pix color data obtained after sub-pix down-sampling is carried out complementary color process, can be effectively improved image resolution ratio and eliminate the color mistake that sub-pix down-sampling technology causes in the case of not affecting picture clarity.

Description

Sub-pix image processing method

Technical field

The present invention relates to Display Technique field, particularly to a kind of sub-pix image processing method.

Background technology

Display Technique is one of most critical part in the comprised technology of information industry, LED (Light Emitting Diode, light emitting diode) display screen system is as novel Display Technique, with its energy-saving and environmental protection, highlighted etc. Advantage is gradually acceptable to the market, thus is widely used in the fields such as city medium, urban transportation.

The pursuit such as high-resolution of display quality is shown it is that LED display industry constantly pursues a goal.

Existing LED display many employings three primary colours Display Technique, the lifting for resolution simply uses Traditional Sampling techniques, the main density utilizing increase physical picture element and scale promote resolution.This skill The cost of art is high, and room for promotion is limited, also has and there is certain drawback in terms of processing technology and heat radiation.? In display system, sub-pix Sampling techniques are utilized when original image is sampled, to there will be color Aliasing Problem.Existing Some one, based on the display device sub-pix anti-color aliasing filtering method of arrangement, refer to Application No. 201310314907.0, invention entitled " super-resolution display packing based on two-dimensional sub-pixel sampling and dress Put " Chinese invention patent application, although color mistake can be eliminated to a certain extent, but can obscure former Image, it is impossible to get a desired effect.

Specifically, as disclosed by above-mentioned application for a patent for invention, it is to original image R, G, B primary color component (face Chromatic number evidence) apply the filtering of corresponding anti-color aliasing respectively, then to filtered image according to display device two The locus structure of dimension sub-pix arrangement carries out sub-pix sampling and shows with the super-resolution realizing display device Show.But, the content disclosed by this application for a patent for invention is by primary colours each to original image structure filtering Device eliminates color mistake, may make image blur, it is difficult to reach the effect of high-resolution and fine definition Really.

Therefore, show field at LED at present, also do not have a kind of LED display packing veritably raising to be schemed As resolution combines to reach fine definition and high-resolution with eliminating color mistake.

Summary of the invention

Therefore, for deficiency of the prior art, the present invention provides a kind of sub-pix image processing method.

Specifically, a kind of sub-pix image processing method that the embodiment of the present invention provides, for display floater Thering is provided destination image data to show to carry out picture, described display floater includes multiple physical picture element, each Described physical picture element includes red (R), green (G) and the physics sub-pix of blue (B).At described subpixel image picture Reason method includes step: obtain obtain because original image is carried out sub-pix down-sampling corresponding to each Red (R), green (G) and blue (B) sub-pix color data of described physical picture element, described original image includes Multiple original pixels, and each described original pixels includes corresponding red (R), green (G) and blue (B) Color data；And red (R), green (G) and blue (B) the sub-pix number of colours to the plurality of physical picture element Obtain corresponding to red (R), green (G) and blue (B) of physical picture element each described according to carrying out complementary color process After complementary color process, sub-pix color data is to generate described destination image data.Wherein, to the plurality of physics Red (R), green (G) of pixel and blue (B) sub-pix color data carry out complementary color process and include: to any one When individual target sub-pix color data carries out complementary color process, mark off and comprise described target sub-pix color data And the matrix pixel block of the multiple sub-pix color data adjacent with described target sub-pix color data base Multiple pending sub-pix color data in described matrix pixel block and with the plurality of pending sub-picture In red (R), green (G) of multiple original pixels that element color data is the most corresponding and blue (B) color data Non-Sample Color Data judges whether to need carry out complementary color and determine complementary color position when needs carry out complementary color With complementary color value size, wherein said multiple pending sub-pix color data include described target sub-pix color Data and with the sub-pix color data that described target sub-pix color data is different colours type.

In one embodiment of the invention, above-mentioned matrix pixel block is 3 × 3 matrix pixel blocks, and described The plurality of sub-pix color data adjacent with described target sub-pix color data in 3 × 3 matrix pixel blocks Other two kinds of color types including the color type being different from described target sub-pix color data.

In one embodiment of the invention, above-mentioned 3 × 3 matrix pixel blocks are with described target sub-pix number of colours Centered by according to.

In one embodiment of the invention, above-mentioned matrix pixel block is 2 × 2 matrix pixel blocks, and described The plurality of sub-pix color data adjacent with described target sub-pix color data in 2 × 2 matrix pixel blocks Other two kinds of color types including the color type being different from described target sub-pix color data.

In one embodiment of the invention, the first physical picture element in adjacent two described physical picture elements and Two physical picture elements all include the first color physics sub-pix being triangularly arranged, a second color thing Reason sub-pix and a 3rd color physics sub-pix；The described first color physics of described first physical picture element Sub-pix and described second color physics sub-pix and the described 3rd color physics of described second physical picture element Sub-pix is positioned at same a line and the described 3rd color physics sub-pix of described first physical picture element and described Described first color physics sub-pix and the described second color physics sub-pix of two physical picture elements are respectively positioned on separately One adjacent lines, described first color, the second color and the 3rd color be respectively from red (R), green (G) and Blue (B) does not repeats a certain color chosen.

In one embodiment of the invention, it may be judged whether need the method carrying out complementary color to include: judge described In red (R), green (G) of the original pixels that target sub-pix color data is corresponding and blue (B) color data One specifies non-Sample Color Data whether the most all face of not sampling with described appointment more than in described matrix pixel block Chromatic number according to be same color type sub-pix color data, and determine when judged result is "Yes" need into Row one color component complementary color, wherein said color component and the color type of the non-Sample Color Data of described appointment Identical.

In one embodiment of the invention, determine that the method for complementary color position includes: obtain described matrix pixel In block all with the non-Sample Color Data of described appointment be same color type sub-pix color data in Maximum sub-pix color data, and when the quantity of described maximum sub-pix color data is one, determine institute State the complementary color position as described color component, position corresponding to maximum sub-pix color data；When described maximum When the quantity of sub-pix color data is multiple, obtain in the position that described maximum sub-pix color data is corresponding Apart from the minimum range sub-pix color data that described target sub-pix color data position is nearest, and work as When the quantity of described minimum range sub-pix color data is one, determine described minimum range sub-pix color Position corresponding to data is as the complementary color position of described color component；And when described minimum range sub-pix face When the quantity of chromatic number evidence is multiple, according to presetting relative to described target sub-pix color data position Orientation priority determines that the position of one of described minimum range sub-pix color data correspondence is as described face The complementary color position of colouring component.

In one embodiment of the invention, determine that the method for complementary color value size includes: by described target Asia picture Element color data is updated to: the initial value of described target sub-pix color data and all complementary color positions determined With described target sub-pix in red (R), green (G) of the most corresponding original pixels and blue (B) color data Color data is the meansigma methods of the non-Sample Color Data of same color type；And by each described complementary color Sub-pix color data corresponding to position is updated to: at the beginning of the sub-pix color data that described complementary color position is corresponding Red (R), green (G) and blue (B) of the original pixels that initial value, described target sub-pix color data are corresponding Sub-pix color data corresponding with described complementary color position in color data is not sampling of same color type Red (R), green (G) and blue (B) of the original pixels that color data is corresponding with other possible complementary color positions Sub-pix color data corresponding with described complementary color position in color data is not sampling of same color type The meansigma methods of color data.

The above embodiment of the present invention uses specific sub-pix color data complementary color Processing Algorithm under sub-pix Sub-pix color data after sampling carries out complementary color process, can be effectively improved image resolution ratio and at not shadow Eliminate, in the case of ringing picture clarity, the color mistake that sub-pix down-sampling technology causes.

By the detailed description below with reference to accompanying drawing, the other side of the present invention and feature become obvious.But It should be known that this accompanying drawing is only the purpose design rather than the restriction as the scope of the present invention explained, This is because it should refer to appended claims.It should also be noted that unless otherwise noted, it is not necessary to depend on Ratio draws accompanying drawing, and they only try hard to structure described herein and flow process are described conceptually.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.

Fig. 1 is the flow chart of a kind of sub-pix image processing method of the embodiment of the present invention.

Fig. 2 is each physics of the applicable display floater of sub-pix image processing method of the embodiment of the present invention The rectanglar arrangement mode schematic diagram of the physics sub-pix of the multiple different colours in pixel.

Fig. 3 is each physics of the applicable display floater of sub-pix image processing method of the embodiment of the present invention The triangular pitch mode schematic diagram of the physics sub-pix of the multiple different colours in pixel.

Fig. 4 is the complementary color handling process schematic diagram of the embodiment of the present invention.

Fig. 5 a and 5b is that multiple 3 × 3 block of pixels of the embodiment of the present invention divide schematic diagram.

Fig. 6 a to 6d is that multiple 2 × 2 block of pixels of the embodiment of the present invention divide schematic diagram.

Fig. 7 a to Fig. 7 h is that the various triangular block of pixels of the embodiment of the present invention divides schematic diagram.

Fig. 8 is the sub-pix color data arrangement obtained after first embodiment of the invention uses sub-pix down-sampling Schematic diagram.

Fig. 9 a to 9d carries out complementary color process by first embodiment of the invention to various sub-pix color data and is adopted 3 × 3 block of pixels schematic diagrams.

Figure 10 is the sub-pix color data row obtained after second embodiment of the invention uses sub-pix down-sampling List intention.

Figure 11 a to 11c is that second embodiment of the invention sub-pix various to odd-numbered line color data carries out complementary color Process 3 × 3 block of pixels schematic diagrams used.

Figure 12 a to 12c is that second embodiment of the invention antithesis several rows various sub-pix color data carries out complementary color Process 3 × 3 block of pixels schematic diagrams used.

Figure 13 a and the high-level schematic functional block diagram of image processing apparatus that Figure 13 b is the embodiment of the present invention.

Detailed description of the invention

Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the most right The detailed description of the invention of the present invention is described in detail.

Owing to the color of only sampling of the original pixels in the lack sampling of color, namely each original image is divided Amount, sub-pix Display Technique processes image can bring color Problem-Error, and the following embodiment of the present invention is for this One problem, proposes sub-pix image processing method as shown in Figure 1, makes the image after process have high-resolution With fine definition.

The sub-pix image processing method of the embodiment of the present invention is for providing destination image data to display floater Carrying out picture for described display floater to show, described display floater includes multiple physical picture element, each thing Reason pixel includes the physics sub-pix of multiple different colours.For purposes of illustration only, the present embodiment shows with LED Panel illustrates as an example, and each of which physical picture element includes the LED of multiple different colours, the reddest Color LED, green LED and blue led.

As it is shown in figure 1, the sub-pix image processing method of the present embodiment includes step: obtain and adopt under sub-pix The multiple sub-picture of each physical picture element in the plurality of physical picture element of the corresponding display floater obtained after sample Element color data；And the plurality of sub-pix color data of the plurality of physical picture element is carried out at complementary color Reason obtains corresponding to sub-pix color data after multiple complementary colors of physical picture element process each described to generate Destination image data is as output.

First, sub-pix down-sampling is illustrated: according to multiple physics in each physical picture element of display floater The exact arrangement mode of sub-pix, carries out sub-pix down-sampling and includes two categories below situation original image:

(1) as in figure 2 it is shown, the arrangement mode of multiple different colours physics sub-pixs in same physical picture element Arranging for matrix, such as physical picture element P, it includes a red sub-pixel, two green sub-pixels and Individual blue subpixels；For situation shown in Fig. 2, when original image is carried out sub-pix down-sampling, permissible Red data in the three primary colours data of the original pixels [0,0] in sampled original image (or claiming red component), Green data in the three primary colours data of original pixels [0,1] (or claiming green component), the three of original pixels [1,0] Green data in primary colours data and the blue data in the three primary colours data of original pixels [1,1] (or claim indigo plant Colouring component) green respectively as a sub-pix red data (R) corresponding to physical picture element P, two sub-pixs Chromatic number is according to (G) and a sub-pix blue data (B)；By that analogy, i.e. available using physical picture element P as Multiple sub-pix face corresponding to the plurality of physical picture element of the display floater of periodic arrangement repetitive Chromatic number evidence, carries out complementary color process for follow-up.

(2) as it is shown on figure 3, the arrangement mode of multiple different colours physics sub-pixs in same physical picture element For triangular pitch, two the most adjacent physical picture element P1 and P2, its all include a red sub-pixel, One green sub-pixels and a blue subpixels, and the red sub-pixel of physical picture element P1, green sub-picture The blue subpixels of element and physical picture element P2 is positioned at same a line, the blue subpixels of physical picture element P1 and physics The red sub-pixel of pixel P2 and green sub-pixels are respectively positioned on another adjacent lines；For situation shown in Fig. 3, When original image is carried out sub-pix down-sampling, can be with three of the original pixels [0,0] in sampled original image Red data (or claiming red component) in primary colours data, the green in the three primary colours data of original pixels [0,1] Data (or claim green component), original pixels [1,0] three primary colours data in blue data (or claiming blue component) Respectively as the sub-pix red data (R) corresponding to physical picture element P1, sub-pix green data (G) and Asia Pixel blue data (B)；And the redness in the three primary colours data of the original pixels [1,1] in sampled original image Data, original pixels [1,2] three primary colours data in green data, the three primary colours data of original pixels [0,2] In blue data green respectively as the sub-pix red data (R) corresponding to physical picture element P2, sub-pix Data (G) and sub-pix blue data (B)；By that analogy, i.e. can get the group with physical picture element P1 and P2 The cooperation multiple Asias corresponding to the plurality of physical picture element of the display floater of periodic arrangement repetitive Pixel color data, carries out complementary color process for follow-up.

It follows that combine Fig. 4, complementary color process is described in detail:

A () divides block of pixels

Block of pixels can be 3*3 block of pixels, it is also possible to be 2*2 block of pixels or triangular pixel block etc., as long as Block of pixels at least includes a R, G, a B.Specifically, Fig. 5 a and Fig. 5 b illustrates two Plant 3 × 3 block of pixels using sub-pix red data (R) as target sub-pix color data；In fig 5 a, Target sub-pix color data (R) is positioned at the center of nine grids block of pixels (3 × 3 block of pixels)；In figure 5b, Target sub-pix color data (R) is positioned at the non-central location of nine grids block of pixels (3 × 3 block of pixels).For it 3 × 3 block of pixels dividing mode of his sub-pix color data (G, B) and 3 × 3 pixels of sub-pix red data Dividing mode is identical, does not repeats them here.It addition, Fig. 6 a to Fig. 6 d illustrates four kinds with sub-pix redness number According to (R) as 2 × 2 block of pixels dividing mode of target sub-pix color data；And Fig. 7 a to Fig. 7 h shows Go out eight kinds using sub-pix red data (R) as the triangular pixel block division side of target sub-pix color data Formula.

B () judges whether to need complementary color

Illustrate as a example by 3 × 3 block of pixels: mark off and comprise target sub-pix color data such as R data 3 × 3 block of pixels and target sub-pix color data position with other 8 the sub-pix color data being adjacent Behind the center of 3 × 3 block of pixels, if the initial value of target sub-pix red data (R component) is R0, its institute Two non-Sample Color Data in the three primary colours data of corresponding original pixels are respectively G0 (green component) And B0 (blue component)

Take all of sub-pix green data (G) in above-mentioned 3 × 3 block of pixels, be defined as Gi (i=1,2 ... n；n It is total number of sub-pix green data (G) in 3 × 3 pixels)；Take all of sub-picture in above-mentioned 3 × 3 block of pixels Element blue data (B), be defined as Bi (i=1,2 ... m；M is all sub-pix blueness numbers in 3 × 3 block of pixels Total number according to (B)), and in definition Gi, an amount of maximum is Gmax, an amount maximum in Bi is Bmax。

(i) G component Rule of judgment: G0 > Gmax (condition 1)

(ii) B component Rule of judgment: B0 > Bmax (condition 2)

Above-mentioned condition 1 and/or condition 2 are if it is satisfied, then represent that G around and/or B component are to this center The complementary color of R component is inadequate, needs the G in this 3 × 3 block of pixels and/or B component assignment again, namely Need to carry out G component and/or B component complementary color.

C () determines complementary color position

[first] complementary color position is determined based on brightness:

Position corresponding for Gmax is denoted as a, and the present embodiment is designed as when above-mentioned condition 1 is satisfied and Gmax is When one, it is determined that a position is as G component complementary color position.

Position corresponding for Bmax is denoted as b, and the present embodiment is designed as when above-mentioned condition 2 is satisfied and Bmax is When one, it is determined that b position is B component complementary color position.

[secondly] determines complementary color position based on distance:

If there is multiple Gmax, then carrying out Distance Judgment, the position which G component is corresponding is divided far from center R Measure closest, then closest a position is defined as G component complementary color position.In like manner, if existing many Individual Bmax, then carry out Distance Judgment, and the position which B component is corresponding is closest far from center R component, Then closest b position is defined as B component complementary color position.

[again] complementary color position is determined based on orientation priority:

The most equal from the distance of center R component if there is multiple Gmax, then complementary color priority is permissible Being set as it being the G component in the orientation such as upper left, upper right, lower-left, bottom right successively, taken a position is i.e. defined as G component complementary color position.In like manner, the most equal from the distance of center R component if there is multiple Bmax, that Complementary color priority can be set as being the B component in the orientation such as upper left, upper right, lower-left, bottom right successively, Taken b position is i.e. defined as B component complementary color position.Certainly, relative to each orientation of center R component Pre-set priority can elastic set, and be not limited to listed above.

D () calculates complementary color value size, have a following four situation:

Situation 1: only meet condition 1, illustrates to have only to carry out G component complementary color

The sub-pix color data needing again assignment has: the sub-pix redness number of 3 × 3 block of pixels centers According to (R component), the sub-pix green data (G component) of a position；

Complementary color value size is:

Center R component updated value is equal to original pixels corresponding with a position in original image for its original value R0 Three primary colours data in the meansigma methods of non-Sample Color Data (R component),

A position G component updated value is equal in the three primary colours data of the original pixels corresponding to the R component of center The initial value of the sub-pix green data (G) that non-Sample Color Data (G component) G0 with a position is corresponding is flat Average.

Situation 2: only meet condition 2, illustrates to have only to carry out B component complementary color

The sub-pix color data needing again assignment has: the sub-pix redness number of 3 × 3 block of pixels centers According to (R component), the sub-pix blue data (B component) of b position；

Complementary color value size is:

Center R component updated value is equal to original pixels corresponding with b position in original image for its original value R0 Three primary colours data in the meansigma methods of non-Sample Color Data (R component),

B position B component updated value is equal in the three primary colours data of the original pixels corresponding to the R component of center not The initial value of the sub-pix blue data (B) that Sample Color Data (B component) B0 with b position is corresponding is average Value.

Situation 3: simultaneously meet condition 1, condition 2, illustrates to need to carry out G, B component complementary color

The sub-pix color data needing again assignment has: the sub-pix redness number of 3 × 3 block of pixels centers According to (R component), the sub-pix green data (G component) of a position, (B divides the sub-pix blue data of b position Amount)；

Complementary color value size is:

The original pixels that center R component updated value is corresponding equal to a position in its original value R0, original image Three primary colours data in non-Sample Color Data (R component), b position is corresponding in original image original image The meansigma methods of the non-Sample Color Data (R component) in the three primary colours data of element,

A position G component updated value is equal in the three primary colours data of the original pixels corresponding to the R component of center The initial value of the sub-pix green data (G) that non-Sample Color Data (G component) G0, a position is corresponding, original Non-Sample Color Data (G component) in the three primary colours data of the original pixels that in image, b position is corresponding is flat Average,

B position B component value is not equal to adopting in the three primary colours data of the original pixels corresponding to the R component of center In sample color data (B component) B0, original image in the three primary colours data of the original pixels that a position is corresponding The initial value of the sub-pix blue data (B) that non-Sample Color Data (B component) is corresponding with b position is average Value.

Situation 4: condition 1 and condition 2 are all unsatisfactory for, illustrates to be made without G, B component complementary color, nothing Need assignment again.

At this it is noted that above-mentioned is to enter using sub-pix red data as target sub-pix color data Row complementary color illustrates as a example by processing, for using sub-pix green data and sub-pix blue data as The situation of target sub-pix color data, its complementary color processing procedure processed with the complementary color of sub-pix red data Cheng Xiangtong, does not repeats them here.

For ease of understanding, especially exemplified by two examples, above-mentioned complementary color processing procedure is illustrated in greater detail below.

[first embodiment]

Assume for the physics sub-pix rectanglar arrangement mode shown in Fig. 2, the number obtained after sub-pix down-sampling According to as shown in Figure 8.In Fig. 8, G1 and G2 represents the three primary colours of different original pixels in original image Green data in data；Then can use concrete complementary color scheme as described below after sub-pix down-sampling:

(1) sub-pix red data R [i, j] in Fig. 8 is carried out complementary color process: mark off one and comprise R [i, j] With the block of pixels of at least one B being adjacent He at least one G (G1 or G2), such as institute on the left of Fig. 9 a The nine grids block of pixels (3 × 3 block of pixels) shown, if the initial value of sub-pix red data R [i, j] is R0 and sets In the three primary colours data of the original pixels [i, j] in original image corresponding with sub-pix red data R [i, j] Two non-Sample Color Data, namely green data and blue data be respectively G0 and B0；For ease of saying Bright, on the left of Fig. 9 a, the center sub-pix red data in nine grids is labeled as R0, four sub-pix green numbers It is respectively labeled as G1, G2, G3, G4 and four sub-pix blue datas according to according to default orientation priority Being respectively labeled as B1, B2, B3 and B4 according to default orientation priority, the such as Fig. 9 a of the result after labelling is right Shown in side.Then:

(1a) judge whether to need complementary color

Judge whether the condition needing to mend G component: G0 > max (G1, G2, G3, G4), namely judge nine palaces Whether all sub-pix green datas in lattice block of pixels are both less than G0, if it is judged that be "Yes", then Represent and need to carry out G component complementary color；

Judge whether the condition needing to mend B component: B0 > max (B1, B2, B3, B4), namely judge nine palaces Whether all sub-pix blue datas in lattice block of pixels are both less than B0, if it is judged that be "Yes", then Represent and need to carry out B component complementary color；

(1b) complementary color position is determined

The present embodiment is designed to G1, and in tetra-sub-pix green datas of G2, G3, G4, maximum is corresponding Position carries out complementary color.If a represents G1, in tetra-sub-pix green datas of G2, G3, G4, maximum is corresponding Position, if having more than two positions is maximum simultaneously, then by the numbering of these four sub-pix green datas first Rear order (corresponding orientation priority) selects complementary color position, such as G1=G2 and be these four sub-pix greens Maximum in data, then select position corresponding for G1 as complementary color position；

The present embodiment is designed to B1, and in tetra-sub-pix blue datas of B2, B3, B4, maximum is corresponding Position carries out complementary color.If b represents B1, in tetra-sub-pix blue datas of B2, B3, B4, maximum is corresponding Position, if having more than two positions is maximum simultaneously, then by the numbering of these four sub-pix blue datas first Rear order (corresponding orientation priority) selects complementary color position, such as B2=B3 and be these four sub-pix bluenesss Maximum in data, then select position corresponding for B2 as complementary color position；

(1c) determine complementary color value size (namely complementary color process after sub-pix color data values size, or claim update Value)

I () works as G, B component is required to complementary color

Then complementary color value size is:

R [i, j]=(R0+R0 [a]+R0 [b])/3

G [a]=(G0+G0 [a]+G0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

(ii) complementary color, B component is needed to need not complementary color when G component

Then complementary color value size is:

R [i, j]=(R0+R0 [a])/2

G [a]=(G0+G0 [a])/2

(iii) complementary color, G component is needed to need not complementary color when B component

Then complementary color value size is:

R [i, j]=(R0+R0 [b])/2

B [b]=(B0+B0 [b])/2

(iv) all need not complementary color when G, B component, then without calculating complementary color value, directly use initial It is worth；

Above-mentioned R0 [a] is the redness of not sampling in the three primary colours data of the original pixels of a position in original image Data, G0 [a] be the initial value of sub-pix green data of a position, B0 [a] be a position in original image Original pixels three primary colours data in blue data of not sampling, R0 [b] is b position in original image Red data of not sampling, G0 [b] in the three primary colours data of original pixels are the former of b position in original image Green data of not sampling in the three primary colours data of beginning pixel, B0 [b] are the sub-pix blue data of b position Initial value.

(2) (G1) data G [i, j] green to sub-pix in Fig. 8 carries out complementary color process: marks off one and comprises G1 With the block of pixels of at least one R being adjacent He at least one B, such as nine palaces shown on the left of Fig. 9 b Lattice block of pixels, if the initial value of sub-pix green data G [i, j] be G0 and set with sub-pix green data G [i, J] original pixels [i, j] in corresponding original image three primary colours data in non-Sample Color Data, also I.e. red data and blue data is respectively R0 and B0；For purposes of illustration only, on the left of Fig. 9 b in nine grids Center sub-pix green data is labeled as G0, and other four sub-pix green datas are respectively labeled as G1, G2, G3, G4, two sub-pix red datas are R1, R2, two sub-pictures according to default orientation priority flag Element blue data is respectively labeled as B1, B2 according to default orientation priority, the such as Fig. 9 b of the result after labelling Shown in right side.Then:

(2a) judge whether to need complementary color

Judge whether the condition needing to mend R component: R0 > max (R1, R2), namely judge nine grids pixel Whether all sub-pix red datas in block are both less than R0, if it is judged that be "Yes", then it represents that need R component complementary color to be carried out；

Judge whether the condition needing to mend B component: B0 > max (B1, B2), namely judge nine grids pixel Whether all sub-pix blue datas in block are both less than B0, if it is judged that be "Yes", then it represents that need B component complementary color to be carried out；

(2b) complementary color position is determined

The present embodiment is designed to the position that in two sub-pix red datas of R1, R2, maximum is corresponding and enters Row complementary color.If a represents the position that in two sub-pix red datas of R1, R2, maximum is corresponding, if two Position is maximum simultaneously, then by the numbering sequencing of the two sub-pix red data, (corresponding orientation is excellent First level) select complementary color position, such as R1=R2 and be the maximum in the two sub-pix red data, Then select position corresponding for R1 as complementary color position；

The present embodiment is designed to the position that in two sub-pix blue datas of B1, B2, maximum is corresponding and enters Row complementary color.If b represents the position that in two sub-pix blue datas of B1, B2, maximum is corresponding, if two Position is maximum simultaneously, then by the numbering sequencing of the two sub-pix blue data, (corresponding orientation is excellent First level) select complementary color position, such as B1=B2 and be the maximum in the two sub-pix blue data, Then select position corresponding for B1 as complementary color position；

(2c) determine complementary color value size (namely complementary color process after sub-pix color data values size, or claim update Value)

I () works as R, B component is required to complementary color

Then complementary color value size is:

G [i, j]=(G0+G0 [a]+G0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

(ii) complementary color, B component is needed to need not complementary color when R component

Then complementary color value size is:

G [i, j]=(G0+G0 [a])/2

R [a]=(R0+R0 [a])/2

(iii) complementary color, R component is needed to need not complementary color when B component

Then complementary color value size is:

G [i, j]=(G0+G0 [b])/2

B [b]=(B0+B0 [b])/2

(iv) all need not complementary color when R, B component, then without calculating complementary color value, directly use initial It is worth；

Above-mentioned G0 [a] is the green of not sampling in the three primary colours data of the original pixels of a position in original image Data, R0 [a] be the initial value of sub-pix red data of a position, B0 [a] be a position in original image Original pixels three primary colours data in blue data of not sampling, G0 [b] is b position in original image Green data of not sampling, R0 [b] in the three primary colours data of original pixels are the former of b position in original image Red data of not sampling in the three primary colours data of beginning pixel, B0 [b] are the sub-pix blue data of b position Initial value.

(3) (G2) data G [i, j] green to sub-pix in Fig. 8 carries out complementary color process: marks off one and comprises G2 With the block of pixels of at least one R being adjacent He at least one B, such as nine palaces shown on the left of Fig. 9 c Lattice block of pixels, if the initial value of sub-pix green color data G [i, j] is G0 and sets and sub-pix green number According to the non-sample color number in the three primary colours pixel of the original pixels [i, j] in the original image that G [i, j] is corresponding According to, namely red data and blue data be respectively R0 and B0；For purposes of illustration only, nine palaces on the left of Fig. 9 c Center sub-pix green data in lattice is labeled as G0, and other four sub-pix green datas are respectively labeled as G1, G2, G3, G4, two sub-pix red datas according to default orientation priority flag be R1, R2, Two sub-pix blue datas are respectively labeled as B1, B2 according to default orientation priority, the result after labelling As shown on the right side of Fig. 7 c.Then:

(3a) judge whether to need complementary color

(3b) complementary color position is determined

The present embodiment is designed to the position that in two red sub-pixel data of R1, R2, maximum is corresponding and enters Row complementary color.If a represents the position that in two red sub-pixel data of R1, R2, maximum is corresponding, if two Position is maximum simultaneously, then by the numbering sequencing of the two red sub-pixel data, (corresponding orientation is excellent First level) select complementary color position, such as R1=R2 and be the maximum in the two red sub-pixel data, Then select position corresponding for R1 as complementary color position；

The present embodiment is designed to the position that in two blue subpixels data of B1, B2, maximum is corresponding and enters Row complementary color.If b represents the position that in two blue subpixels data of B1, B2, maximum is corresponding, if two Position is maximum simultaneously, then by the numbering sequencing of the two blue subpixels data, (corresponding orientation is excellent First level) select complementary color position, such as B1=B2 and be the maximum in the two blue subpixels data, Then select position corresponding for B1 as complementary color position；

(3c) determine complementary color value size (namely complementary color process after sub-pix color data values size, or claim update Value)

I () works as R, B component is required to complementary color

Then complementary color value size is:

G [i, j]=(G0+G0 [a]+G0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

Then complementary color value size is:

G [i, j]=(G0+G0 [a])/2

R [a]=(R0+R0 [a])/2

Then complementary color value size is:

G [i, j]=(G0+G0 [b])/2

B [b]=(B0+B0 [b])/2

Above-mentioned G0 [a] is the green of not sampling in the three primary colours data of the original pixels of a position in original image Data, R0 [a] be the initial value of sub-pix red data of a position, B0 [a] be a position in original image Original pixels three primary colours in blue data of not sampling, G0 [b] is the original of b position in original image Green data of not sampling in the three primary colours data of pixel, R0 [b] are the original image of b position in original image Red data of not sampling in the three primary colours data of element, B0 [b] are at the beginning of the sub-pix blue data of b position Initial value.

(4) sub-pix blue data B [i, j] in Fig. 8 is carried out complementary color process: mark off one comprise B and with The block of pixels of its at least one adjacent R and at least one G (G1 or G2), such as shown on the left of Fig. 9 d Nine grids block of pixels, if the initial value of sub-pix blue data B [i, j] is B0 and sets and sub-pix blueness number According to the non-sample color number in the three primary colours data of the original pixels [i, j] in the original image that B [i, j] is corresponding According to, namely red data and green data be respectively R0 and G0；For purposes of illustration only, nine palaces on the left of Fig. 9 d Center sub-pix blue data in lattice is labeled as B0, and four sub-pix green datas are according to default orientation It is excellent according to default orientation that priority is respectively labeled as G1, G2, G3, G4 and four sub-pix red datas First level is respectively labeled as R1, R2, R3 and R4, shown on the right side of the result after labelling such as Fig. 9 d.Then:

(4a) judge whether to need complementary color

Judge whether the condition needing to mend R component: R0 > max (R1, R2, R3, R4), namely judge nine palaces Whether all sub-pix red datas in lattice block of pixels are both less than R0, if it is judged that be "Yes", then Represent and need to carry out R component complementary color；

(4b) complementary color position is determined

The present embodiment is designed to R1, and in tetra-sub-pix red datas of R2, R3, R4, maximum is corresponding Position carries out complementary color.If a represents R1, in tetra-sub-pix red datas of R2, R3, R4, maximum is corresponding Position, if having more than two positions is maximum simultaneously, then by the numbering of these four sub-pix red datas first Rear order (corresponding orientation priority) selects complementary color position, such as R3=R4 and be these four sub-pix redness Maximum in data, then select position corresponding for R3 as complementary color position；

The present embodiment is designed to G1, and in tetra-sub-pix green datas of G2, G3, G4, maximum is corresponding Position carries out complementary color.If b represents G1, in tetra-sub-pix green datas of G2, G3, G4, maximum is corresponding Position, if having more than two positions is maximum simultaneously, then by the numbering of these four sub-pix green datas first Rear order (corresponding orientation priority) selects complementary color position, such as G3=G4 and be these four sub-pix greens Maximum in data, then select position corresponding for G3 as complementary color position；

(4c) determine complementary color value size (namely complementary color process after sub-pix color data values size, or claim update Value)

I () is worked as R, G component and is required to complementary color

Then complementary color value size is:

B [i, j]=(B0+B0 [a]+B0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

G [b]=(G0+G0 [a]+G0 [b])/3

(ii) complementary color, G component is needed to need not complementary color when R component

Then complementary color value size is:

B [i, j]=(B0+B0 [a])/2

R [a]=(R0+R0 [a])/2

(iii) complementary color, R component is needed to need not complementary color when G component

Then complementary color value size is:

B [i, j]=(B0+B0 [b])/2

G [b]=(G0+G0 [b])/2

(iv) all need not complementary color when R, G component, then without calculating complementary color value, directly use initial It is worth；

Above-mentioned B0 [a] is the blueness of not sampling in the three primary colours data of the original pixels of a position in original image Data, R0 [a] be the initial value of sub-pix red data of a position, G0 [a] be a position in original image Original pixels three primary colours data in green data of not sampling, B0 [b] is b position in original image Blue data of not sampling, R0 [b] in the three primary colours data of original pixels are the former of b position in original image Red data of not sampling in the three primary colours data of beginning pixel, G0 [b] are the sub-pix green data of b position Initial value.

First embodiment of the invention is by four, " red-blue two is green " in each pixel to display floater After sub-pix color data corresponding to sub-pix carries out above-mentioned complementary color process, available complementary color is sub-picture after processing Each physical picture element (such as shown in Fig. 2) of display floater is addressed to show by element color data, wherein, R, B color data is exported to the result of calculation value obtained after above-mentioned complementary color processes, and for G face Chromatic number is according to the half (namely half value) of the result of calculation value obtained after being finally output as the process of above-mentioned complementary color.

[the second embodiment]

Assume, for the physics sub-pix triangular pitch mode shown in Fig. 3, to obtain after sub-pix down-sampling Data as shown in Figure 10, then can use concrete complementary color scheme as described below after sub-pix down-sampling:

[odd-numbered line complementary color processing scheme]:

(1) odd-numbered line sub-pix red data R [i, j] in Figure 10 is carried out complementary color process: mark off a bag At least one B containing R and being adjacent and the block of pixels of at least one G, such as shown on the left of Figure 11 a Nine grids block of pixels (3 × 3 block of pixels), if the initial value of sub-pix red data R [i, j] be R0 and set with In the three primary colours data of the original pixels [i, j] in the original image that sub-pix red data R [i, j] is corresponding Non-Sample Color Data, namely green data and blue data be respectively G0 and B0；For purposes of illustration only, figure On the left of 11a, the center sub-pix red data in nine grids is labeled as R0, three sub-pix green datas according to The orientation priority preset is respectively labeled as G1, G2, G3 and three sub-pix blue datas according to presetting Orientation priority be respectively labeled as B1, B2, B3, shown on the right side of the result after labelling such as Figure 11 a.Then:

(1a) judge whether to need complementary color

Judge whether the condition needing to mend G component: G0 > max (G1, G2, G3), namely judge nine grids Whether all sub-pix green datas in block of pixels are both less than G0, if it is judged that be "Yes", then table Show and need to carry out G component complementary color；

Judge whether the condition needing to mend B component: B0 > max (B1, B2, B3), namely judge nine grids Whether all sub-pix blue datas in block of pixels are both less than B0, if it is judged that be "Yes", then table Show and need to carry out B component complementary color；

(1b) complementary color position is determined

The present embodiment is designed to G1, the position that in tri-sub-pix green datas of G2, G3, maximum is corresponding Put and carry out complementary color.If a represents G1, the position that in tri-sub-pix green datas of G2, G3, maximum is corresponding, If having more than one position is maximum simultaneously, then by the numbering sequencing of these three sub-pix green data (corresponding orientation priority) selects complementary color position, such as G1=G2 and be in these three sub-pix green data Maximum, then select position corresponding to G1 as complementary color position；

The present embodiment is designed to B1, the position that in tri-sub-pix blue datas of B2, B3, maximum is corresponding Carry out complementary color.If b represents B1, the position that in tri-sub-pix blue datas of B2, B3, maximum is corresponding, if Have more than one position is maximum simultaneously, then by the numbering sequencing of these three sub-pix blue data (corresponding orientation priority) selects complementary color position, such as B2=B3 and be in these three sub-pix blue data Maximum, then select position corresponding to B2 as complementary color position；

I () works as G, B component is required to complementary color

Then complementary color value size is:

R [i, j]=(R0+R0 [a]+R0 [b])/3

G [a]=(G0+G0 [a]+G0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

Then complementary color value size is:

R [i, j]=(R0+R0 [a])/2

G [a]=(G0+G0 [a])/2

Then complementary color value size is:

R [i, j]=(R0+R0 [b])/2

B [b]=(B0+B0 [b])/2

(2) odd-numbered line sub-pix green data G [i, j] in Figure 10 is carried out complementary color process: mark off a bag At least one R containing G1 and being adjacent and the block of pixels of at least one B, such as shown on the left of Figure 11 b Nine grids block of pixels, if the initial value of sub-pix green data G [i, j] is G0 and sets and sub-pix is green Non-sample color in the three primary colours data of the original pixels [i, j] in the original image that data G [i, j] are corresponding Data, namely red data and blue data be respectively R0 and B0；For purposes of illustration only, on the left of Figure 11 b nine The center sub-pix green data of Gong Gezhong is labeled as G0, three sub-pix red datas according to default side Position priority flag is R1, and R2, R3, three sub-pix blue datas are according to default orientation priority respectively Being labeled as B1, B2, B3, shown on the right side of the result after labelling such as Figure 11 b.Then:

(2a) judge whether to need complementary color

Judge whether the condition needing to mend R component: R0 > max (R1, R2, R3), namely judge nine grids picture Whether all sub-pix red datas in element block are both less than R0, if it is judged that be "Yes", then it represents that Need to carry out R component complementary color；

(2b) complementary color position is determined

The present embodiment is designed to R1, the position that in tri-sub-pix red datas of R2, R3, maximum is corresponding Put and carry out complementary color.If a represents R1, the position that in tri-sub-pix red datas of R2, R3, maximum is corresponding, If having more than one position is maximum simultaneously, then by the numbering sequencing of these three sub-pix red data (corresponding orientation priority) selects complementary color position, such as R1=R2 and be in these three sub-pix red data Maximum, then select position corresponding to R1 as complementary color position；

The present embodiment is designed to B1, the position that in tri-sub-pix blue datas of B2, B3, maximum is corresponding Carry out complementary color.If b represents B1, the position that in tri-sub-pix blue datas of B2, B3, maximum is corresponding, if Have more than one position is maximum simultaneously, then by the numbering sequencing of these three sub-pix blue data (corresponding orientation priority) selects complementary color position, such as B1=B2 and be in these three sub-pix blue data Maximum, then select position corresponding to B1 as complementary color position；

I () works as R, B component is required to complementary color

Then complementary color value size is:

G [i, j]=(G0+G0 [a]+G0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

Then complementary color value size is:

G [i, j]=(G0+G0 [a])/2

R [a]=(R0+R0 [a])/2

Then complementary color value size is:

G [i, j]=(G0+G0 [b])/2

B [b]=(B0+B0 [b])/2

(3) odd-numbered line sub-pix blue data B [i, j] in Figure 10 is carried out complementary color process: mark off a bag At least one R containing B and being adjacent and the block of pixels of at least one G, such as shown on the left of Figure 11 c Nine grids block of pixels, if the initial value of sub-pix blue data B [i, j] is B0 and sets and sub-pix is blue Non-sample color in the three primary colours data of the original pixels [i, j] in the original image that data B [i, j] are corresponding Data, namely red data and green data be respectively R0 and G0；For purposes of illustration only, on the left of Figure 11 c nine The center sub-pix blue data of Gong Gezhong is labeled as B0, and three sub-pix green datas are according to default side It is excellent according to default orientation that position priority is respectively labeled as G1, G2, G3 and three sub-pix red datas First level is respectively labeled as R1, and R2, R3, shown on the right side of the result after labelling such as Figure 11 c.Then:

(3a) judge whether to need complementary color

Judge whether the condition needing to mend R component: R0 > max (R1, R2, R3), namely judge nine grids Whether all sub-pix red datas in block of pixels are both less than R0, if it is judged that be "Yes", then table Show and need to carry out R component complementary color；

(3b) complementary color position is determined

The present embodiment is designed to R1, the position that in tri-sub-pix red datas of R2, R3, maximum is corresponding Carry out complementary color.If a represents R1, the position that in tri-sub-pix red datas of R2, R3, maximum is corresponding, if Have more than one position is maximum simultaneously, then by the numbering sequencing of these three sub-pix red data (corresponding orientation priority) selects complementary color position, such as R1=R2 and be in these three sub-pix red data Maximum, then select position corresponding to R1 as complementary color position；

The present embodiment is designed to G1, the position that in tri-sub-pix green datas of G2, G3, maximum is corresponding Put and carry out complementary color.If b represents G1, the position that in tri-sub-pix green datas of G2, G3, maximum is corresponding, If having more than one position is maximum simultaneously, then by the numbering sequencing of these three sub-pix green data (corresponding orientation priority) selects complementary color position, such as G2=G3 and be in these three sub-pix green data Maximum, then select position corresponding to G2 as complementary color position；

I () is worked as R, G component and is required to complementary color

Then complementary color value size is:

B [i, j]=(B0+B0 [a]+B0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

G [b]=(G0+G0 [a]+G0 [b])/3

Then complementary color value size is:

B [i, j]=(B0+B0 [a])/2

R [a]=(R0+R0 [a])/2

Then complementary color value size is:

B [i, j]=(B0+B0 [b])/2

G [b]=(G0+G0 [b])/2

[even number line complementary color processing scheme]:

(4) even number line sub-pix red data R [i, j] in Figure 10 is carried out complementary color process: mark off a bag At least one B containing R and being adjacent and the block of pixels of at least one G, such as shown on the left of Figure 12 a Nine grids block of pixels, if the initial value of sub-pix red data R [i, j] is R0 and sets and sub-pix is red Non-sample color in the three primary colours data of the original pixels [i, j] in the original image that data R [i, j] are corresponding Data, namely green data and blue data be respectively G0 and B0；For purposes of illustration only, on the left of Figure 12 a nine The center sub-pix red data of Gong Gezhong is labeled as R0, and three sub-pix green datas are according to default side It is excellent according to default orientation that position priority is respectively labeled as G1, G2, G3 and three sub-pix blue datas First level is respectively labeled as B1, and B2, B3, shown on the right side of the result after labelling such as Figure 12 a.Then:

(4a) judge whether to need complementary color

(4b) complementary color position is determined

I () works as G, B component is required to complementary color

Then complementary color value size is:

R [i, j]=(R0+R0 [a]+R0 [b])/3

G [a]=(G0+G0 [a]+G0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

Then complementary color value size is:

R [i, j]=(R0+R0 [a])/2

G [a]=(G0+G0 [a])/2

Then complementary color value size is:

R [i, j]=(R0+R0 [b])/2

B [b]=(B0+B0 [b])/2

(5) even number line sub-pix green data G [i, j] in Figure 10 is carried out complementary color process: mark off a bag At least one R containing G1 and being adjacent and the block of pixels of at least one B, such as shown on the left of Figure 12 b Nine grids block of pixels, if the initial value of sub-pix green data G [i, j] is G0 and sets and sub-pix is green Non-sample color in the three primary colours data of the original pixels [i, j] in the original image that data G [i, j] are corresponding Data, namely red data and blue data be respectively R0 and B0；For purposes of illustration only, on the left of Figure 12 b nine The center sub-pix green data of Gong Gezhong is labeled as G0, three sub-pix red datas according to default side Position priority flag is R1, and R2, R3, three sub-pix blue datas are according to default orientation priority respectively Being labeled as B1, B2, B3, shown on the right side of the result after labelling such as Figure 12 b.Then:

(5a) judge whether to need complementary color

(5b) complementary color position is determined

(5c) determine complementary color value size (namely complementary color process after sub-pix color data values size, or claim update Value)

I () works as R, B component is required to complementary color

Then complementary color value size is:

G [i, j]=(G0+G0 [a]+G0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

B [b]=(B0+B0 [a]+B0 [b])/3

Then complementary color value size is:

G [i, j]=(G0+G0 [a])/2

R [a]=(R0+R0 [a])/2

Then complementary color value size is:

G [i, j]=(G0+G0 [b])/2

B [b]=(B0+B0 [b])/2

(6) even number line sub-pix blue data B [i, j] in Figure 10 is carried out complementary color process: mark off a bag At least one R containing B and being adjacent and the block of pixels of at least one G, such as shown on the left of Figure 12 c Nine grids block of pixels, if the initial value of sub-pix blue data B [i, j] is B0 and sets and sub-pix is blue Non-sample color in the three primary colours data of the original pixels [i, j] in the original image that data B [i, j] are corresponding Data, namely red data and green data be respectively R0 and G0；For purposes of illustration only, on the left of Figure 12 c nine The center sub-pix blue data of Gong Gezhong is labeled as B0, and three sub-pix green datas are according to default side It is excellent according to default orientation that position priority is respectively labeled as G1, G2, G3 and three sub-pix red datas First level is respectively labeled as R1, and R2, R3, shown on the right side of the result after labelling such as Figure 12 c.Then:

(6a) judge whether to need complementary color

(6b) complementary color position is determined

(6c) determine complementary color value size (namely complementary color process after sub-pix color data values size, or claim update Value)

I () is worked as R, G component and is required to complementary color

Then complementary color value size is:

B [i, j]=(B0+B0 [a]+B0 [b])/3

R [a]=(R0+R0 [a]+R0 [b])/3

G [b]=(G0+G0 [a]+G0 [b])/3

Then complementary color value size is:

B [i, j]=(B0+B0 [a])/2

R [a]=(R0+R0 [a])/2

Then complementary color value size is:

B [i, j]=(B0+B0 [b])/2

G [b]=(G0+G0 [b])/2

Second embodiment of the invention by each pixel (such as shown in Fig. 3) to display floater " one is red One is green one blue " number that obtains after carrying out above-mentioned complementary color process of three sub-pix color data corresponding to sub-pix According to being referred to Figure 10, simply compared to Figure 10 for, each sub-pix color data values is that complementary color processes After updated value；Afterwards, sub-pix face after complementary color corresponding to three sub-pixs in each pixel processes is exported Chromatic number is according to being addressed display.Referring to Fig. 3 and Figure 10, described addressing display packing is: for Fig. 3 In physical picture element P1 in tri-color physics sub-pixs of RGB for, then can be utilized respectively in Figure 10 First sub-pix red data (R) of the first row (odd-numbered line), first sub-pix green data (G) and First sub-pix blue data (B) of two row (even number line) is driven respectively；For the physics picture in Fig. 3 For tri-color physics sub-pixs of BRG in element P2, then can be utilized respectively the first row (odd number in Figure 10 First sub-pix blue data (B) OK) and first sub-pix red data of the second row (even number line) (R), first sub-pix green data (G) is driven respectively；The driving of other each physical picture elements is with this Analogize, will not enumerate at this.

It addition, it is noted that the complementary color processing scheme in above-mentioned first embodiment and the second embodiment is Use nine grids block of pixels (3 × 3 block of pixels) to illustrate as an example, and nine grids block of pixels is preferably By the center sub-pix color data processing target sub-pix color data as complementary color and the week being adjacent Enclose eight sub-pix color data compositions, in which case, then to Fig. 8 and Figure 10 Central Asia pixel color The first row of data, first row, last column, last string do not carry out complementary color process；Namely Fig. 8 and figure Sub-pix color data on the first row in 10, first row, last column, last string carry out (that is, Edge sub-pixel color data) process target sub-pix color data not as complementary color.Certainly, in other feelings Under shape, for example with 2 × 2 block of pixels, triangular pixel block or not using target sub-pix color data as 3 × 3 block of pixels at center, then can process target sub-pix face using edge sub-pixel color data as complementary color Chromatic number evidence.Furthermore, it should be noted that each sub-pix color data in Fig. 8 and Figure 10 is carried out Complementary color processes, no matter whether edge sub-pixel color data is done complementary color and is processed target sub-pix color data, Its final data value all will be referred to as sub-pix color data after complementary color processes.

Refer to Figure 13 a and Figure 13 b, the merit of its a kind of image processing apparatus provided for the embodiment of the present invention Can module map.Specifically, as depicted in fig. 13 a, the image processing apparatus 130 of the present embodiment is suitable to display Panel 100 provides destination image data to show to carry out picture, and described display floater 100 includes multiple physics Pixel (such as shown in Fig. 2 or Fig. 3), each described physical picture element includes that the physics of multiple different colours is sub- Pixel.Specifically, image processing apparatus 130 includes: sub-pix color data acquisition module 131 and benefit Color processing module 133.

Wherein, sub-pix color data acquisition module 131 is used for obtaining because carrying out original image under sub-pix Sampling and obtain corresponding to multiple sub-pix color data of physical picture element each described, described original graph As including multiple original pixels, and each described original pixels includes corresponding multiple bases data.This enforcement In example, the RGB three primary colours data that multiple bases data are the most above-mentioned but it also may be more multiple bases data.

Complementary color processing module 133 is for entering the plurality of sub-pix color data of the plurality of physical picture element Row complementary color processes and obtains corresponding to sub-pix number of colours after multiple complementary colors of physical picture element process each described Generate described destination image data according to this.Described complementary color processing module 133 farther includes: block of pixels divides Submodule 1331 and complementary color process submodule 1333.

Block of pixels divides submodule 1331 for carrying out any one target sub-pix color data at complementary color During reason, mark off and comprise described target sub-pix color data and adjacent with described target sub-pix color data The block of pixels of multiple sub-pix color data；Such as, block of pixels divides submodule 1331 specifically for root 3 × 3 block of pixels, 2 × 2 block of pixels or triangular pixel block is marked off according to control instruction.

Complementary color processes submodule 1333 for based on the multiple pending sub-pix number of colours in described block of pixels According to and the multiple bases number of multiple original pixels respectively the most corresponding with the plurality of pending sub-pix color data Non-Sample Color Data according to judges whether to need carry out complementary color and determine benefit when needs carry out complementary color Color bits is put and complementary color value size, and wherein said multiple pending sub-pix color data include described target Asia picture Element color data and with the sub-pix color data that described target sub-pix color data is different colours type.

As illustrated in fig. 13b, complementary color process submodule 1333 can also be refined as including: complementary color judging unit 13330, complementary color position determination unit 13332 and complementary color value computing unit 13334.Wherein, complementary color judges Unit 13330 is in the multiple bases data judging original pixels corresponding to described target sub-pix color data One specify non-Sample Color Data whether all with the non-sample color of described appointment more than in described block of pixels Data are the sub-pix color data of same color type, and determine that when judged result is "Yes" needs are carried out One color component complementary color, wherein said color component and the color type phase of the non-Sample Color Data of described appointment With；Complementary color position determination unit 13332 is for determining the complementary color position of described color component；And complementary color value Computing unit 13334 is for calculating the updated value of described target sub-pix color data and described color component Described block of pixels corresponding to complementary color position in the updated value of sub-pix color data.

Additionally, complementary color position determination unit 13332 can also be refined as including: based on brightness stator list really Unit 13332a, based on determination of distance subelement 13332b and based on orientation priority stator unit really 13332c.Wherein, based on brightness stator unit 13332a really be used for obtaining in described block of pixels all with The non-Sample Color Data of described appointment is the maximum sub-pix in the sub-pix color data of same color type Color data, and when the quantity of described maximum sub-pix color data is one, determine described maximum sub-picture Position corresponding to element color data is as the complementary color position of described color component.Based on determination of distance subelement 13332b is for when the quantity of described maximum sub-pix color data is multiple, obtaining described maximum sub-pix The narrow spacing that in the position that color data is corresponding, target sub-pix color data position described in distance is nearest From sub-pix color data, and when the quantity of described minimum range sub-pix color data is one, determine Position corresponding to described minimum range sub-pix color data is as the complementary color position of described color component.Based on Priority stator unit 13332c really in orientation is for when the quantity of described minimum range sub-pix color data For time multiple, according to true relative to the pre-configured orientation priority of described target sub-pix color data position One of fixed described minimum range sub-pix color data corresponding position is as the complementary color of described color component Position.

It is noted that the modules related in Figure 13 a and Figure 13 b, submodule, unit and son are single The concrete function details of unit see acquisition and the complementary color processing procedure of aforesaid sub-pix color data, at this Repeat no more.

In sum, the above embodiment of the present invention uses specific sub-pix color data complementary color Processing Algorithm pair Sub-pix color data after sub-pix down-sampling carries out complementary color process, can be effectively improved image resolution ratio with And in the case of not affecting picture clarity, eliminate the color mistake that sub-pix down-sampling technology causes.

Specific case used herein is to the principle of sub-pix image processing method of the present invention and embodiment Being set forth, the explanation of above example is only intended to help to understand that the method for the present invention and core thereof are thought Think；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, in detailed description of the invention And all will change in range of application, in sum, this specification content should not be construed as the present invention Restriction, protection scope of the present invention should be as the criterion with appended claim.

Claims

1. a sub-pix image processing method, for providing destination image data to carry out picture to display floater Face shows, described display floater includes multiple physical picture element, each described physical picture element include red (R), Green (G) and the physics sub-pix of blue (B)；It is characterized in that, described sub-pix image processing method includes step Rapid:

Obtain obtain because original image is carried out sub-pix down-sampling corresponding to physics picture each described Red (R), green (G) and blue (B) sub-pix color data of element, described original image includes multiple original image Element, and each described original pixels includes corresponding red (R), green (G) and blue (B) color data；

Red (R), green (G) and blue (B) sub-pix color data to the plurality of physical picture element carry out complementary color Process Asia after obtaining processing corresponding to red (R), green (G) of physical picture element each described and blue (B) complementary color Pixel color data to generate described destination image data, wherein to red (R) of the plurality of physical picture element, Green (G) and blue (B) color sub-pix color data carry out complementary color process and include:

When any one target sub-pix color data is carried out complementary color process, mark off and comprise described target Sub-pix color data and the multiple sub-pix color data adjacent with described target sub-pix color data Matrix pixel block based on the multiple pending sub-pix color data in described matrix pixel block with described Red (R), green (G) and the indigo plant of multiple original pixels that multiple pending sub-pix color data are the most corresponding (B) the non-Sample Color Data in color data judges whether to need carry out complementary color and carry out complementary color at needs Time to determine that complementary color position and complementary color value size, wherein said multiple pending sub-pix color data include described Target sub-pix color data and with the sub-pix that described target sub-pix color data is different colours type Color data.

2. sub-pix image processing method as claimed in claim 1, it is characterised in that described matrix pixel Block is 3 × 3 matrix pixel blocks, and in described 3 × 3 matrix pixel blocks with described target sub-pix number of colours The face being different from described target sub-pix color data is included according to adjacent the plurality of sub-pix color data Other two kinds of color types of color type.

3. sub-pix image processing method as claimed in claim 2, it is characterised in that described 3 × 3 squares Battle array block of pixels is centered by described target sub-pix color data.

4. sub-pix image processing method as claimed in claim 1, it is characterised in that described matrix pixel Block is 2 × 2 matrix pixel blocks, and in described 2 × 2 matrix pixel blocks with described target sub-pix number of colours The face being different from described target sub-pix color data is included according to adjacent the plurality of sub-pix color data Other two kinds of color types of color type.

5. sub-pix image processing method as claimed in claim 1, it is characterised in that described in adjacent two The first physical picture element in physical picture element and the second physical picture element all include first be triangularly arranged Color physics sub-pix, a second color physics sub-pix and a 3rd color physics sub-pix；Described The described first color physics sub-pix of the first physical picture element and described second color physics sub-pix and described The described 3rd color physics sub-pix of the second physical picture element is positioned at same a line and described first physical picture element Described 3rd color physics sub-pix and the described first color physics sub-pix of described second physical picture element and Described second color physics sub-pix is respectively positioned on another adjacent lines, described first color, the second color and the 3rd Color is respectively a certain color not repeating to choose from red (R), green (G) and blue (B).

6. sub-pix image processing method as claimed in claim 1, it is characterised in that judge whether needs The method carrying out complementary color includes:

Judge red (R), green (G) and blue (B) of original pixels corresponding to described target sub-pix color data Whether the non-Sample Color Data in color data is the most all more than in described matrix pixel block and described do not adopts Sample color data is the sub-pix color data of same color type, and determines when judged result is "Yes" Need to carry out a color component complementary color, wherein said color component and the color class of described non-Sample Color Data Type is identical.

7. sub-pix image processing method as claimed in claim 1, it is characterised in that determine complementary color position Method include:

Obtain all in described matrix pixel block and that described non-Sample Color Data is same color type Asia Maximum sub-pix color data in pixel color data, and when the quantity of described maximum sub-pix color data When being one, determine position corresponding to the described maximum sub-pix color data complementary color as described color component Position；

When the quantity of described maximum sub-pix color data is multiple, obtain described maximum sub-pix number of colours According to the minimum range Asia picture that target sub-pix color data position described in distance in corresponding position is nearest Element color data, and when the quantity of described minimum range sub-pix color data is one, determine described in Position corresponding to small distance sub-pix color data is as the complementary color position of described color component；And

When the quantity of described minimum range sub-pix color data is multiple, according to sub-relative to described target The pre-configured orientation priority of pixel color data position determines described minimum range sub-pix color data One of corresponding position as the complementary color position of described color component.

8. sub-pix image processing method as claimed in claim 1, it is characterised in that determine that complementary color value is big Little method includes:

Described target sub-pix color data is updated to: the initial value of described target sub-pix color data and Red (R), green (G) and blue (B) color data of the original pixels that all complementary color positions determined are the most corresponding In with the meansigma methods of the non-Sample Color Data that described target sub-pix color data is same color type；

Sub-pix color data corresponding for each described complementary color position is updated to: described complementary color position is corresponding The initial value of sub-pix color data, original pixels corresponding to described target sub-pix color data red (R) in, green (G) and blue (B) color data, the sub-pix color data corresponding with described complementary color position is same The original pixels that the non-Sample Color Data of one color type is corresponding with other possible complementary color positions red (R) in, green (G) and blue (B) color data, the sub-pix color data corresponding with described complementary color position is same The meansigma methods of the non-Sample Color Data of one color type.