CN105609084A - Compensation method and compensation device for displaying image brightness - Google Patents
Compensation method and compensation device for displaying image brightness Download PDFInfo
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Abstract
The invention is applicable to the field of tablet computer display panels, and provides a compensation method and a compensation device for displaying image brightness. The method comprises the following steps: segmenting a small compensation form for image display into odd-numbered and even-numbered small compensation forms; reading out the compensation values of the small compensation forms M(i, j) and M(i+alpha, j) from the odd-numbered and even-numbered small compensation forms; calculating the compensation value of an interpolated compensation form P(i', j) according to the compensation values of M(i, j) and M(i+alpha, j); calculating the value of R1 according to the compensation value of P(i', j) and the value of alpha; reading out the compensation values of the small compensation forms M(i, j+alpha) and M(i+alpha, j+alpha) from the odd-numbered and even-numbered small compensation forms; calculating the value of R2 according to the compensation values of M(i, j+alpha) and M(i+alpha, j+alpha) and the value of alpha; and calculating the compensation value of an interpolated compensation form P(i', j+k) according to the values of R1 and R2 and the compensation value of P(i', j) and based on the relationship between the values of R1 and R2 and the compensation values of two adjacent interpolated compensation forms, wherein k is between 1 and alpha. According to the invention, the cost is saved, and the energy consumption is reduced.
Description
Technical field
The invention belongs to panel display board field, relate in particular to a kind of compensation method that shows brightness of image,Device.
Background technology
Two-d display panel cannot be reached the requirement of whole panel high uniformity and produce Mura (brightness irregularities)Region. In order to compensate Mura region, need to produce compensation form and compensate in specific region, make MuraRegion is consistent with the brightness of other normal viewing area of panel. And for cost-saving, conventionally can use little benefitRepay form interpolation go out need compensation form compensate.
But there is following defect in existing compensation method:
A), while doing interpolation with little compensation form, while often calculating interpolation compensation, all must read compensation meterLattice, the mechanism of reading there is not efficiency, and frequently reads compensation form, causes power consumption.
B) interpolating method still can abbreviation, to reduce cost.
Summary of the invention
The embodiment of the present invention provides a kind of compensation method that shows brightness of image, and device, is intended to solve existingCompensation method, the power consumption of the demonstration brightness of image that technology provides, and the high problem of cost.
On the one hand, provide a kind of compensation method of diagram image brightness, described method comprises:
Steps A, showing that the little compensation form of image cuts apart, form the little compensation form of odd-numbered line and idolThe little compensation form of number row;
Step B, from the little compensation form of odd-numbered line and the little compensation form of even number line, read out respectively little compensation meterLattice Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset, calculate interpolation compensation form Pi’，jOffset, wherein, α is the length of side multiplying power that little compensation form is wanted the interpolation compensation form that interpolation goes out, i,J represents line number and the row number of little compensation form, i, and j is all more than or equal to 1, i ' and is more than or equal to i;
Step C, according to described Pi’，jOffset and the value of described α, calculate R1Value;
Step D, from the little compensation form of odd-numbered line and the little compensation form of even number line, read out respectively little compensation meterLattice Mi，j+αAnd Mi+α，j+αOffset, according to described Mi，j+αAnd Mi+α，j+αOffset and the value of described α,Calculate R2Value;
Step e, according to described R1、R2Value and described interpolation compensation form Pi’，jOffset, by advanceThe described R that first abbreviation obtains1、R2Value and the offset of adjacent two interpolations compensation form between relation, meterCalculate interpolation compensation form Pi’，j+kOffset, wherein, k is 1 to α.
Further, described step B is according to described Mi，jAnd Mi+α，jOffset, by following formula meterCalculate interpolation compensation form Pi’，jOffset:
Pi',j＝((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)。
Further, described step C is according to described Pi’，jOffset and the value of described α, by followingFormula calculates R1Value:
R1＝(1/α)*Pi',j。
Further, described step D is according to described Mi，j+αAnd Mi+α，j+αOffset and described αValue, calculates R by following formula2Value:
R2＝(1/α)*((1-(i'-1)/a)*Mi,j+α+((i'-1)/a)*Mi+α,j+α)。
Further, in step e, the described R that described abbreviation in advance obtains1、R2Value and adjacent twoBetween the offset of individual interpolation compensation form, relation meets following formula:
Pi',j+k＝Pi',j+k-1-R1+R2
Wherein, Pi',j+kAnd Pi',j+k-1Two adjacent interpolation compensation forms.
On the other hand, provide a kind of compensation arrangement that shows brightness of image, described device comprises:
Form cutting unit, for the little compensation form that shows image is cut apart, forms the little benefit of odd-numbered lineRepay the little compensation form of form and even number line;
The first compensation value calculation unit, for dividing from the little compensation form of odd-numbered line and the little compensation form of even number lineDo not read out little compensation form Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset, meterCalculate interpolation compensation form Pi’，jOffset, wherein, α is the interpolation compensation meter that little compensation form wants interpolation to go outThe length of side multiplying power of lattice, i, j represents line number and the row number of little compensation form, i, j is all more than or equal to 1, i ' and is greater than etc.In i;
The first median computing unit, for according to described Pi’，jOffset and the value of described α, calculateTo R1Value;
The second median computing unit, for dividing from the little compensation form of odd-numbered line and the little compensation form of even number lineDo not read out little compensation form Mi，j+αAnd Mi+α，j+αOffset, according to described Mi，j+αAnd Mi+α，j+αCompensationThe value of value and described α, calculates R2Value;
The second compensation value calculation unit, for according to described R1、R2Value and described interpolation compensation form Pi’， jOffset, by the described R that abbreviation obtains in advance1、R2Value and the benefit of adjacent two interpolations compensation formRelation between the value of repaying, calculates interpolation compensation form Pi’，j+kOffset, wherein, k is 1 to α.
Further, described the first compensation value calculation unit is according to described Mi，jAnd Mi+α，jOffset, logicalCross following formula and calculate interpolation compensation form Pi’，jOffset:
Pi',j＝((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)。
Further, described the first median computing unit is according to described Pi’，jOffset and described αValue, calculates R by following formula1Value:
R1＝(1/α)*Pi',j。
Further, described the second median computing unit is according to described Mi，j+αAnd Mi+α，j+αOffset withAnd the value of described α, calculate R by following formula2Value:
R2＝(1/α)*((1-(i'-1)/a)*Mi,j+α+((i'-1)/a)*Mi+α,j+α)。
Further, the described R that the described abbreviation in advance in described the second median computing unit obtains1、R2Value and the offset of adjacent two interpolations compensation form between relation meet following formula:
Pi',j+k＝Pi',j+k-1-R1+R2
Wherein, Pi',j+kAnd Pi',j+k-1Two adjacent interpolation compensation forms.
In the embodiment of the present invention, little compensation form is divided into the little compensation form of odd-numbered line and the little compensation of even number lineAfter form, once can read the offset of two little compensation forms simultaneously, can power saving. In addition, only needEvery α pixel does a secondary linear interpolation, and each interpolation method operand only has half, remaining pictureVegetarian refreshments all utilizes the offset of pixel above, adds R2Subtract R1, need not do secondary line one time at every turnProperty interpolation, can reduce a lot of computings, save cost, also reduce power consumption.
Brief description of the drawings
Fig. 1 is little compensation form and the interpolation compensation form in the demonstration image that provides of the embodiment of the present invention oneSchematic diagram;
Fig. 2 is the realization flow figure of the compensation method of the demonstration brightness of image that provides of the embodiment of the present invention one;
Fig. 3 is that the little compensation form in the demonstration image that provides of the embodiment of the present invention one is cut apart, the odd number of formationThe schematic diagram of the little compensation form of row and the little compensation form of even number line;
Fig. 4 is the structured flowchart of the compensation arrangement of the demonstration brightness of image that provides of the embodiment of the present invention two.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and realityExecute example, the present invention is further elaborated. Only should be appreciated that specific embodiment described hereinOnly, in order to explain the present invention, be not intended to limit the present invention.
In embodiments of the present invention, the little compensation form that shows image is cut apart, formed the little benefit of odd-numbered lineRepay the little compensation form of form and even number line; Difference from the little compensation form of odd-numbered line and the little compensation form of even number lineRead out little compensation form Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset, calculateGo out interpolation compensation form Pi’，jOffset, wherein, α is that little compensation form is wanted the interpolation compensation form that interpolation goes outLength of side multiplying power, i, j represent little compensation form line number and row number, i, j is all more than or equal to 1, i ' and is more than or equal toI; According to described Pi’，jOffset and the value of described α, calculate R1Value; From the little compensation meter of odd-numbered lineIn the little compensation form of lattice and even number line, read out respectively little compensation form Mi，j+αAnd Mi+α，j+αOffset, rootAccording to described Mi，j+αAnd Mi+α，j+αOffset and the value of described α, calculate R2Value; According to described R1、 R2Value and described interpolation compensation form Pi’，jOffset, by the described R that abbreviation obtains in advance1、R2Value and the offset of adjacent two interpolations compensation form between relation, calculate interpolation compensation form Pi’，j+kValue,Wherein, k is 1 to α.
Below in conjunction with specific embodiment, realization of the present invention is described in detail:
Embodiment mono-
Refer to Fig. 1, in Fig. 1, stain a, b, c, d, e and f are little compensation forms, stain correspondencePixel value be the offset of little compensation form; Ash point is the interpolation compensation form that will calculate, and ash point is correspondingPixel value be the offset of the interpolation compensation form that will calculate. Making α is that little compensation form wants interpolation to go outThe length of side multiplying power of interpolation compensation form, α=6. Make X1,X2,Y1,Y2Value is: (interpolation form and little compensation meterPixel layout between lattice)/α.
In embodiments of the present invention, before the brightness that shows image is compensated, first to existing secondaryLinear interpolation formula carries out abbreviation, obtains R1、R2And the formula of relation between adjacent two interpolations compensation form,Concrete derivation is as follows:
First calculate P according to the linear interpolation formula of existing secondary3, as shown in formula (1):
P3＝Y2*(X2*a+X1*b)+Y1*(X2*c+X1* d) formula (1)
Again formula (1) is processed, is obtained formula (2):
P3＝X2*(Y2*a+Y1*c)+X1*(Y2*b+Y1* d) formula (2)
Calculate P according to formula (2) again4, as shown in formula (3):
P4＝(X2-1/α)*(Y2*a+Y1*c)+(X1+1/α)*(Y2*b+Y1*d)
＝X2*(Y2*a+Y1*c)+X1*(Y2*b+Y1*d)-(1/α)*(Y2*a+Y1*c)+1/α*(Y2*b+Y1*d)
＝P3-R2+R1Formula (3)
Wherein, R1、R2Value meet formula (4) and formula (5):
R1＝(1/α)*(Y2*a+Y1* c) formula (4)
R2＝1/α*(Y2*b+Y1* d) formula (5)
According to formula (3), (4), (5), calculate P again5, as shown in formula (6):
P5＝P4-R1+R2Formula (6)
Can infer R according to formula (6)1、R2And the formula of relation between adjacent two interpolations compensation form,As shown in formula (7):
Pn＝Pn-1-R1+R2Formula (7)
Follow-up, in the time that the brightness that shows image is compensated, can utilize formula (4), (5) and (7) to calculateObtain the offset that little compensation form a, b, c, d want the interpolation compensation form that interpolation goes out, according to this offsetEach interpolation compensation form is compensated, eliminate the Mura region of two-d display panel.
The offset that calculates interpolation compensation form by the linear interpolation formula of the secondary after abbreviation, can reduce veryMultioperation step, reduces cost, also reduces power consumption.
Adopt the linear interpolation formula of secondary after this abbreviation to calculate the offset of interpolation compensation form, to realizeThe realization flow that shows the method for the compensation of brightness of image, refers to Fig. 2.
Fig. 2 shows the realization flow of the compensation method of the demonstration brightness of image that the embodiment of the present invention one provides,Details are as follows:
In step S201, the little compensation form that shows image is cut apart, form the little compensation meter of odd-numbered lineThe little compensation form of lattice and even number line.
In embodiments of the present invention, after the little compensation form of the demonstration image shown in Fig. 1 is cut apart, shapeBecome the little compensation form of odd-numbered line and the little compensation form of even number line, as shown in Figure 3. Wherein, the little compensation of odd-numbered lineForm comprises stain a, b and e; The little compensation form of even number line comprises stain c, d and f.
In step S202, from the little compensation form of odd-numbered line and the little compensation form of even number line, read out respectivelyLittle compensation form Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset, calculateInterpolation compensation form Pi’，jOffset, wherein, α is that little compensation form is wanted the interpolation compensation form that interpolation goes outLength of side multiplying power, i, j represents line number and the row number of little compensation form, i, j is all more than or equal to 1, i ' and is greater than etc.In i.
In embodiments of the present invention, i, i+ α and j represent the coordinate position of little compensation form, wherein, Mi，jRepresent that position is capable at i, the little compensation form of j row, is a little compensation form of odd-numbered line, Mi+α，jTableShow that position is capable at i+ α, the little compensation form of j row, is a little compensation form of even number line. Little compensationForm Mi，jWith little compensation form Mi+α，jIn same row. Interpolation compensation form Pi’，jBe and little compensation formMi，jWith little compensation form Mi+α，jIn the wherein M of same rowi,jAn interpolation compensation form. I, j is all greater thanEqualing 1, i ' is more than or equal to i and is less than or equal to i+ α.
Wherein, according to formula (2), can obtain:
Pi',j＝((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)。
For example, as shown in Figure 3, first from the little compensation form of odd-numbered line and the little compensation form of even number line, read respectivelyTake out the offset of little compensation form a and c, then according to the offset of little compensation form a and c, utilize twoSublinear interpolation formula (2), calculates interpolation compensation form P0Offset.
Concrete, due to P0Corresponding X1＝0，X2=1, calculate P according to formula (2)0OffsetFormula is as follows:
P0＝Y2*a+Y1*c
Wherein, i '=3, Y2＝(1-(i’-1)/6)＝(1-(3-1)/6)＝4/6，Y1＝(i’-1)/6＝(3-1)/6＝2/6。
In step S203, according to described Pi’，jOffset and the value of described α, calculate R1'sValue.
In embodiments of the present invention, can obtain R according to formula (4)1Meet:
R1＝(1/α)*((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)＝(1/α)*Pi',j。
Concrete, as shown in Figure 3, R1＝(1/α)*(Y2*a+Y1*c)＝(1/α)*P0。
In step S204, from the little compensation form of odd-numbered line and the little compensation form of even number line, read out respectivelyLittle compensation form Mi，j+αAnd Mi+α，j+αOffset, according to described Mi，j+αAnd Mi+α，j+αOffset withAnd the value of described α, calculate R2Value.
In embodiments of the present invention, can obtain R according to formula (5)2Meet:
R2＝(1/α)*((1-(i'-1)/a)*Mi,j+α+((i'-1)/a)*Mi+α,j+α)。
Concrete, as shown in Figure 3, from the little compensation form of odd-numbered line and the little compensation form of even number line, read respectivelyGo out the offset of little compensation form b and d, then according to little compensation form b and the offset of d and the value of described α,Calculate R according to formula (5)2Value.
Wherein, R2＝(1/α)*(Y2*b+Y1*d)。
In step S205, according to described R1、R2Value and described interpolation compensation form Pi’，jCompensationValue, by the described R that abbreviation obtains in advance1、R2Value and the offset of adjacent two interpolations compensation formBetween relation, calculate interpolation compensation form Pi’，j+kOffset, wherein, k is 1 to α.
In embodiments of the present invention, can obtain R according to the formula (7) that abbreviation obtains in advance1、R2Value andBetween the offset of adjacent two interpolations compensation form, relation meets following formula:
Pi',j+k＝Pi',j+k-1-R1+R2
Wherein, Pi',j+kAnd Pi',j+k-1Two adjacent interpolation compensation forms.
Below to cut apart the little compensation form of rear formation odd-numbered line and the little compensation form of even number line as example in Fig. 3,Illustrate the computational process of the offset of interpolation compensation form:
As shown in Figure 3, α=6, first read the offset of little compensation form a and c; Again according to little compensation formThe offset of a and c, calculates interpolation compensation form P0Offset; Again according to interpolation compensation form P0'sOffset is tried to achieve R1Value; Read again the offset of little compensation form b and d; Again according to little compensation form bValue with offset and the α of d, calculates R2Value; Finally according to P0Offset, R1Value,R2Value, by the described R that abbreviation obtains in advance1、R2Value and the compensation of adjacent two interpolations compensation formRelation between value, tries to achieve P1、P2、P3、P4、P5Offset.
If continue to calculate P6To P11Value, first according to the offset of little compensation form b and d, meterCalculation obtains P6; Again according to P6And the value of α, calculate R1Value; Again from the little compensation form of odd-numbered lineWith the offset that reads out respectively little compensation form e, f in the little compensation form of even number line, according to little compensation formThe offset of e, f and the value of α, calculate R2Value; Finally according to P6Offset, R1Value,R2Value by the described R that abbreviation obtains in advance1、R2Value and the compensation of adjacent two interpolations compensation formRelation between value, tries to achieve P6To P11Offset.
The present embodiment, cuts apart little compensation form, forms the little compensation form of odd-numbered line and the little compensation meter of even number lineLattice, are divided into two less compensation forms, and its reason has two: (1) if only have a little compensation form,Once can only read an offset and out carry out computing, such as, can only read a from Fig. 1, be divided into twoAfter individual less compensation form, once just can read two offsets and carry out computing, such as, can be from Fig. 3The middle offset that simultaneously reads out a and c. Wherein, the said one-period once referring to (period) here,It is exactly the time of a T saying of hardware. Because little compensation form is to exist in memory, memory is commonThe lower singleportmemory of meeting use cost, one-period (T) can only be read or write once, thereforeTo read two offsets out from little compensation form, must spend the time in two cycles, namely must readTwice. (2) if only have a little compensation form, read needed energy twice, can be than being divided into twoIndividual less little compensation form respectively reads once more than needed energy, and its reason is a little compensation formNeed two cycles just can read two values, and be divided into after two less little compensation forms, only need oneCycle just can be read two values, and in not having read value, little compensation form just can be turned off power saving, andBe divided into two less little compensation forms, the cycle of not reading is the twice of a little compensation form, as figure1 need to read a and c needs two cycles from little compensation form, as Fig. 3, if be divided into two lessLittle compensation form, we can only need one-period just can read out a and c simultaneously. So, by littleCompensation form is divided into after the little compensation form of odd-numbered line and the little compensation form of even number line, can power saving.
In addition, only need every α pixel to do a secondary linear interpolation, such as, α=6 o'clock, only need meterCalculate (Ex:P0、P6、P12、P18And R ..)2With R1, and interpolation method operand only has half at every turn,As Fig. 3 and formula (2), calculate P0And P6Time, X1Be 0, therefore only remaining half of amount of calculation, remainingPixel all utilizes the offset of pixel above, adds R2Subtract R1, need not do secondary one time at every turnLinear interpolation, can reduce a lot of computings, and the few cost of joint, also reduces power consumption.
One of ordinary skill in the art will appreciate that all or part of step realizing in the various embodiments described above methodBe can carry out the hardware that instruction is relevant by program to complete, corresponding program can be stored in a computer canRead in storage medium, described storage medium, as ROM/RAM, disk or CD etc.
Embodiment bis-
Fig. 4 shows the concrete structure frame of the compensation arrangement of the demonstration brightness of image that the embodiment of the present invention two providesFigure, for convenience of explanation, only shows the part relevant to the embodiment of the present invention. This demonstration brightness of imageCompensation arrangement 4 comprises: form cutting unit 41, the first compensation value calculation unit 42, the first median are calculatedUnit 43, the second median computing unit 44 and the second compensation value calculation unit 45.
Wherein, form cutting unit 41, for the little compensation form that shows image is cut apart, forms strangeThe number little compensation form of row and the little compensation form of even number line;
The first compensation value calculation unit 42, for from the little compensation form of odd-numbered line and the little compensation form of even number lineRead out respectively little compensation form Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset,Calculate interpolation compensation form Pi’，jOffset, wherein, α is that little compensation form is wanted the interpolation compensation that interpolation goes outThe length of side multiplying power of form, i, j represents line number and the row number of little compensation form, i, j is all more than or equal to 1, i ' and is greater thanEqual i;
The first median computing unit 43, for according to described Pi’，jOffset and the value of described α, calculateObtain R1Value;
The second median computing unit 44, for from the little compensation form of odd-numbered line and the little compensation form of even number lineRead out respectively little compensation form Mi，j+αAnd Mi+α，j+αOffset, according to described Mi，j+αAnd Mi+α，j+αBenefitThe value of the value of repaying and described α, calculates R2Value;
The second compensation value calculation unit 45, for according to described R1、R2Value and described interpolation compensation formpi’，jOffset, by the described R that abbreviation obtains in advance1、R2Value and adjacent two interpolations compensation formRelation between offset, calculates interpolation compensation form Pi’，j+kOffset, wherein, k is 1 to α.
Concrete, described the first compensation value calculation unit 42 is according to described Mi，jAnd Mi+α，jOffset, logicalCross following formula and calculate interpolation compensation form Pi’，jOffset:
Pi',j＝((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)。
Concrete, described the first median computing unit is according to described Pi’，jOffset and described αValue, calculates R by following formula1Value:
R1＝(1/α)*Pi',j。
Concrete, described the second median computing unit is according to described Mi，j+αAnd Mi+α，j+αOffset andThe value of described α, calculates R by following formula2Value:
R2＝(1/α)*((1-(i'-1)/a)*Mi,j+α+((i'-1)/a)*Mi+α,j+α)。
Concrete, the described R that the described abbreviation in advance in described the second median computing unit obtains1、R2Value and the offset of adjacent two interpolations compensation form between relation meet following formula:
Pi',j+k＝Pi',j+k-1-R1+R2
Wherein, Pi',j+kAnd Pi',j+k-1Two adjacent interpolation compensation forms.
The compensation arrangement of the demonstration brightness of image that the embodiment of the present invention provides can be applied in the method for aforementioned correspondenceIn embodiment mono-, details, referring to the description of above-described embodiment one, do not repeat them here.
It should be noted that in said apparatus embodiment, included unit is just according to function logicDivide, but be not limited to above-mentioned division, as long as can realize corresponding function; SeparatelyOutward, the concrete title of each functional unit also, just for the ease of mutual differentiation, is not limited to of the present inventionProtection domain.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, not all at thisAny amendment of doing within bright spirit and principle, be equal to and replace and improvement etc., all should be included in the present inventionProtection domain within.
Claims (10)
1. show a compensation method for brightness of image, it is characterized in that, described method comprises:
Steps A, showing that the little compensation form of image cuts apart, form the little compensation form of odd-numbered line and idolThe little compensation form of number row;
Step B, from the little compensation form of odd-numbered line and the little compensation form of even number line, read out respectively little compensation meterLattice Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset, calculate interpolation compensation formPi’，jOffset, wherein, α is the length of side multiplying power that little compensation form is wanted the interpolation compensation form that interpolation goes out, i,J represents line number and the row number of little compensation form, i, and j is all more than or equal to 1, i ' and is more than or equal to i;
Step C, according to described Pi’，jOffset and the value of described α, calculate R1Value;
Step D, from the little compensation form of odd-numbered line and the little compensation form of even number line, read out respectively little compensation meterLattice Mi，j+αAnd Mi+α，j+αOffset, according to described Mi，j+αAnd Mi+α，j+αOffset and the value of described α,Calculate R2Value;
Step e, according to described R1、R2Value and described interpolation compensation form Pi’，jOffset, by advanceThe described R that first abbreviation obtains1、R2Value and the offset of adjacent two interpolations compensation form between relation, meterCalculate interpolation compensation form Pi’，j+kOffset, wherein, k is 1 to α.
2. the method for claim 1, is characterized in that, described step B is according to described Mi，jWithMi+α，jOffset, calculate interpolation compensation form P by following formulai’，jOffset:
Pi',j＝((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)。
3. the method for claim 1, is characterized in that, described step C is according to described Pi’，jBenefitThe value of the value of repaying and described α, calculates R by following formula1Value:
R1＝(1/α)*Pi',j。
4. the method for claim 1, is characterized in that, described step D is according to described Mi，j+αWithMi+α，j+αOffset and the value of described α, calculate R by following formula2Value:
R2＝(1/α)*((1-(i'-1)/a)*Mi,j+α+((i'-1)/a)*Mi+α,j+α)。
5. the method for claim 1, is characterized in that, in step e, described abbreviation in advance obtainsThe described R arriving1、R2Value and the offset of adjacent two interpolations compensation form between relation meet following public affairsFormula:
Pi',j+k＝Pi',j+k-1-R1+R2
Wherein, Pi',j+kAnd Pi',j+k-1Two adjacent interpolation compensation forms.
6. a compensation arrangement that shows brightness of image, is characterized in that, described device comprises:
Form cutting unit, for the little compensation form that shows image is cut apart, forms the little benefit of odd-numbered lineRepay the little compensation form of form and even number line;
The first compensation value calculation unit, for dividing from the little compensation form of odd-numbered line and the little compensation form of even number lineDo not read out little compensation form Mi，jAnd Mi+α，jOffset, according to described Mi，jAnd Mi+α，jOffset, meterCalculate interpolation compensation form Pi’，jOffset, wherein, α is the interpolation compensation meter that little compensation form wants interpolation to go outThe length of side multiplying power of lattice, i, j represents line number and the row number of little compensation form, i, j is all more than or equal to 1, i ' and is greater than etc.In i;
The first median computing unit, for according to described Pi’，jOffset and the value of described α, calculateTo R1Value;
The second median computing unit, for dividing from the little compensation form of odd-numbered line and the little compensation form of even number lineDo not read out little compensation form Mi，j+αAnd Mi+α，j+αOffset, according to described Mi，j+αAnd Mi+α，j+αCompensationThe value of value and described α, calculates R2Value;
The second compensation value calculation unit, for according to described R1、R2Value and described interpolation compensation form Pi’， jOffset, by the described R that abbreviation obtains in advance1、R2Value and the benefit of adjacent two interpolations compensation formRelation between the value of repaying, calculates interpolation compensation form Pi’，j+kOffset, wherein, k is 1 to α.
7. device as claimed in claim 6, is characterized in that, described the first compensation value calculation unit basisDescribed Mi，jAnd Mi+α，jOffset, calculate interpolation compensation form P by following formulai’，jOffset:
Pi',j＝((1-(i'-1)/a)*Mi,j+((i'-1)/a)*Mi+α,j)。
8. device as claimed in claim 6, is characterized in that, described the first median computing unit basisDescribed Pi’，jOffset and the value of described α, calculate R by following formula1Value:
R1＝(1/α)*Pi',j。
9. device as claimed in claim 6, is characterized in that, described the second median computing unit basisDescribed Mi，j+αAnd Mi+α，j+αOffset and the value of described α, calculate R by following formula2'sValue:
R2＝(1/α)*((1-(i'-1)/a)*Mi,j+α+((i'-1)/a)*Mi+α,j+α)。
10. device as claimed in claim 6, is characterized in that, in described the second median computing unitThe described R that obtains of described abbreviation in advance1、R2Value and the offset of adjacent two interpolations compensation form itBetween relation meet following formula:
Pi',j+k＝Pi',j+k-1-R1+R2
Wherein, Pi',j+kAnd Pi',j+k-1Two adjacent interpolation compensation forms.
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