CN104464634A - LED correction effect checking method and relevant correction method and device - Google Patents
LED correction effect checking method and relevant correction method and device Download PDFInfo
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Abstract
The invention relates to an LED correction effect checking method and a relevant correction method and device. The LED correction effect checking method includes the steps that correction coefficients of all pixels in a selected display region acquired through point-by-point correction are acquired; the correction coefficients of all the pixels in the display region and the same preset grey level are used for creating a bitmap with the resolution equal to that of the display region, wherein the grey level difference exists among all pixels in the bitmap due to the fact that the correction coefficients of all the pixels in the display region are different; the correction effect checking bitmap is sent to a lower computer display control system of the display region, and the lower computer display control system controls the display region to display the bitmap so that the correction effect can be checked. According to the quick LED correction effect checking method, the problem that time spent in checking the correction effect in the correction process of each region is long in the prior art is solved, correction time is greatly shortened, the method is easy to implement, and cost is low.
Description
Technical field
The present invention relates to LED and show alignment technique field, particularly LED calibration result inspection method and correlation-corrected method and device.
Background technology
Because the links such as lamp, welding, structural design, heat radiation, brightness decay that select of LED display all may have influence on the inconsistency of display screen, which results in the brightness of LED display, colourity consistance is a great problem in industry always.Under this background, pointwise correction technology looks for another way, and it is not intervened in the manufacture link of display screen, but measures in display screen terminal brightness, colourity and correct.
Current pointwise correction is conventional to be defined as: by gathering brightness (and colourity) data of every lamp point in LED display, draw the correction coefficient (also namely for the matrix of coefficients of each pixel) for every lamp point, fed back to the control system of display screen, realized driving every point-to-point otherness of lamp by control system correction coefficient, thus significantly improve pixel intensity and the uniformity of chromaticity of display screen.But, for on-the-spot large scale LED display, its resolution is all larger, by the restriction of the resolution of brightness (and colourity) data equipment of collection every lamp point, it is generally divided into multiple region and corrects respectively, is ensured overall homogeneity and the slickness of display screen between subregion and subregion by specific algorithm.Usually, after having corrected a subregion, need whether well to observe the effect after correcting, to judge that whether correction coefficient is suitable, whether can continue next Subarea calibration.
Way general is at present: after often completing the once correction of a subregion, all correction coefficient is uploaded to hardware (slave computer display control program) view result.But coefficient upload procedure needs the regular hour, and namely efficiency is lower; And subregion number is larger, this Process Total is consuming time longer, has a strong impact on efficiency.
Summary of the invention
Therefore, the invention provides a kind of LED calibration result inspection method and correlation-corrected method and device, can check that calibration result checks the problem that the calibration result time is longer to solve in prior art in each Subarea calibration process fast.
Particularly, the bearing calibration of a kind of LED viewing area that the embodiment of the present invention provides, comprises step: (a) carries out pointwise correction to obtain the correction coefficient of each pixel in described LED viewing area to described LED viewing area; B () creates the bitmap identical with the resolution sizes of described LED viewing area, the gray-scale value of each pixel in wherein said bitmap is identical; C () utilizes the gray-scale value of respective pixel in the correction coefficient of each pixel in described LED viewing area and described bitmap to calculate calibration result and checks figure; D described calibration result is checked that figure is presented at described LED viewing area for checking whether calibration result meets the requirements by (); E (), when calibration result is undesirable, repeats step (a), (c) and (d) until calibration result meets the requirements; And (f) is when calibration result meets the requirements, in described LED viewing area when being met the requirements by corresponding calibration result, the correction coefficient of each pixel is as target correction coefficient.
In one embodiment of the invention, when the red image R in described correction coefficient, G, B three-component coefficient, green image R, G, B three-component coefficient and blue image R, G, B three-component coefficient are respectively (R1, R2, R3), (G1, G2, and (B1 G3), B2, and described gray-scale value is Gray B3), above-mentioned steps (c) comprising: when needing the calibration result checking red image, by R, G, B component value of each pixel in described bitmap respectively assignment be Gray*R1, Gray*R2, Gray*R3, check figure to obtain red-correction effect; When needing the calibration result checking green image, by R, G, B component value of each pixel in described bitmap respectively assignment be Gray*G1, Gray*G2, Gray*G3, check figure to obtain green correction effect; And when needing the calibration result checking blue image, by R, B, B component value of each pixel in described bitmap respectively assignment be Gray*B1, Gray*B2, Gray*B3, check figure to obtain blue-correction effect.
In one embodiment of the invention, in above-mentioned steps (b), described bitmap is monochrome bitmap or pure color bitmap.
In one embodiment of the invention, above-mentioned monochrome bitmap is red color bitmaps, green bitmap or blue bitmap.
In one embodiment of the invention, when the pointwise correction in step (a) is pointwise chromaticity correction (also claiming pointwise bright chroma to correct), the bitmap in step (b) is 24 bitmaps; And when the pointwise correction in step (a) is that brightness point by point corrects, the bitmap in step (b) is 8 bitmaps or 24 bitmaps.
Moreover a kind of LED calibration result inspection method that the embodiment of the present invention provides, comprises step: the correction coefficient obtaining each pixel in the selected viewing area obtained by pointwise correction; Create the bitmap identical with the resolution sizes of described viewing area, the gray-scale value of each pixel in wherein said bitmap is identical; The correction coefficient of each pixel in described viewing area is utilized to regulate the color component value of respective pixel in described bitmap to check figure to obtain calibration result respectively; And described calibration result is checked that figure is presented at described viewing area for checking calibration result.
In one embodiment of the invention, the above-mentioned correction coefficient of each pixel in described viewing area that utilizes regulates the color component value of respective pixel in described bitmap to check that the step of figure comprises to obtain calibration result respectively: when needing the calibration result checking the first color image, by the first color component value of each pixel in described bitmap, the second color component value and the 3rd color component value respectively assignment be Gray*X1, Gray*X2, Gray*X3, check figure to obtain the first color correction effect; Wherein (X1, X2, X3) is the first color image three-component coefficient in described correction coefficient, and Gray is described gray-scale value.
In one embodiment of the invention, above-mentionedly described calibration result is checked figure is presented at described viewing area for checking that the step of calibration result comprises: described calibration result is checked figure is sent to the slave computer display control program of described viewing area, show described calibration result by viewing area described in described slave computer display control program drived control and check figure.
In addition, a kind of LED calibration result inspection method that another embodiment of the present invention provides, comprises step: the correction coefficient obtaining each pixel in the selected viewing area obtained by pointwise correction; Utilizing the correction coefficient of each pixel in described viewing area to create the bitmap identical with described viewing area resolution sizes with same default gray-scale value, there is grey value difference because of the difference of the correction coefficient of each pixel in described viewing area in each pixel in wherein said bitmap; And described calibration result checked slave computer display control program that figure is sent to described viewing area comes LED viewing area described in drived control and shows described bitmap for checking calibration result.
In addition, the bearing calibration of a kind of LED display that the embodiment of the present invention provides, comprises step: the selected correction subregion in multiple correction subregions that (S1) divides described LED display corrects to obtain the correction coefficient of each pixel in described selected correction subregion; (S2) create the bitmap identical with the resolution sizes of described selected correction subregion, the gray-scale value of each pixel in wherein said bitmap is identical; (S3) utilize the gray-scale value of respective pixel in the correction coefficient of each pixel in described selected correction subregion and described bitmap to calculate calibration result and check figure; (S4) described calibration result is checked that figure is presented at described selected correction subregion for checking whether the calibration result of described selected correction subregion meets the requirements; (S5) when the calibration result of described selected correction subregion is undesirable, step (S1), (S3) and (S4) is repeated until the calibration result of described selected correction subregion meets the requirements; (S6) when the calibration result of described selected correction subregion meets the requirements, record the target correction coefficient of each pixel in described selected correction subregion, and judge whether described multiple correction subregions of described LED display have all corrected; And (S7) has all corrected when described multiple correction subregions of described LED display, the target correction coefficient of each pixel in described multiple correction subregion is sent to the slave computer display control program of described LED display.
In addition, the means for correcting of a kind of LED viewing area that the embodiment of the present invention provides, comprising: pointwise correction module, for carrying out pointwise correction to described LED viewing area to obtain the correction coefficient of each pixel in described LED viewing area; Bitmap creation module, for creating the bitmap identical with the resolution sizes of described LED viewing area, the gray-scale value of each pixel in wherein said bitmap is identical; Calibration result checks figure generation module, calculates calibration result check figure for utilizing the gray-scale value of respective pixel in the correction coefficient of each pixel in described LED viewing area and described bitmap; Bitmap sending module, for checking that by described calibration result slave computer display control program that figure is sent to described LED viewing area comes LED viewing area described in drived control and shows described calibration result and check that figure is for checking whether calibration result meets the requirements; And target correction coefficient acquisition module, for responding the correction coefficient of each pixel in described LED viewing area when corresponding calibration result meets the requirements by user's input operation as target correction coefficient.
Therefore, relative to prior art, the embodiment of the present invention solves in prior art checks in each Subarea calibration process and substantially reduces the problem that the calibration result time is longer correction time, and easily realize, with low cost.
By the detailed description below with reference to accompanying drawing, other side of the present invention and feature become obvious.But it should be known that this accompanying drawing is only the object design of explanation, instead of as the restriction of scope of the present invention, this is because it should with reference to additional claim.Should also be appreciated that, unless otherwise noted, unnecessaryly draw accompanying drawing to scale, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is a kind of LED display correction system architecture schematic diagram that the embodiment of the present invention adopts.
Fig. 2 is the schematic flow sheet of the bearing calibration of a kind of LED display of the embodiment of the present invention.
Fig. 3 is the schematic flow sheet of a kind of LED calibration result inspection method of the embodiment of the present invention.
Fig. 4 is the schematic flow sheet of the another kind of LED calibration result inspection method of the embodiment of the present invention.
Fig. 5 is the functional block diagram of the means for correcting of a kind of LED viewing area of the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Refer to Fig. 1, its a kind of LED display correction system architecture schematic diagram adopted for the embodiment of the present invention.As shown in Figure 1, corrective system 10 is such as connected by wired or wireless mode and LED display control system 30.Wherein, corrective system 10 such as comprises correcting computer and image capture device such as camera and/or colorimeter, and wherein correcting computer is such as provided with pointwise correction software for the gamma correction of LED display 20 or chromaticity correction; In the present embodiment, gamma correction refers to the correction of simple brightness aspect, and chromaticity correction refers to that brightness and colourity all correct.LED display screen system 30 such as comprises host computer 31 and slave computer display control program 33; Wherein, host computer 31 is such as PC, and slave computer display control program 33 such as comprises the combination of sending card and receiving card or comprises Asynchronism Card; In some occasion, after Asynchronism Card, also receiving card can be connected with.In addition, LED display 20 can be monochromatic screen, double-colored screen or full-color screen, is not described in detail in this.
It is the schematic flow sheet of the bearing calibration of a kind of LED display of the embodiment of the present invention please also refer to Fig. 1 and Fig. 2, Fig. 2.What first illustrate is, for the correction of LED display 20, usually need to carry out subregion, such as, according to actual conditions for large scale LED display to LED display 20, be limited to the resolution restriction of image capture device, usually can mark off multiple correction subregion to correct one by one; Certainly, for small size LED display, then can only there is one to correct subregion.
As shown in Figure 2, divide for LED display 20 and have multiple correction subregion (such as four), in the bearing calibration process of the LED display of the present embodiment: first selected LED display more than 20 of correcting in subregion corrects subregion (being also LED viewing area), then pointwise correction is carried out to selected correction subregion, often complete LED calibration result inspection method that pointwise correction then utilizes the present invention to propose (follow-up will describe in detail) and check calibration result, if calibration result undesirable (personnel that also namely correct think that calibration result is undesirable), then by correction personnel adjustment collecting device position, pointwise correction is again carried out after correction parameter such as screen body brightness and/or color component value etc., until the calibration result of selected correction subregion meets the requirements.After the calibration result of selected correction subregion meets the requirements, judge whether all correction subregions of LED display 20 complete correction, if judged result is "No", then the selected next subregion that corrects carries out pointwise correction, if judged result is "Yes", then upload the target correction coefficient of all correction subregions to the slave computer display control program 33 in LED display control system 30.In above process, for full-color LED display screen, pointwise correction normally carries out gamma correction or chromaticity correction respectively to red (R), green (G), blue (B) three sprites, and it is well-known technology, does not repeat them here.In addition, it is worth mentioning that, in the present embodiment, for the target correction coefficient of each selected correction subregion, also the correction coefficient of each pixel in the correction subregion selected when namely corresponding calibration result meets the requirements, it can be stored on the host computer 31 of LED display control system 30, and the correction coefficient unifying each to correct subregion after preferably obtaining the target correction coefficient of all correction subregions is again sent to slave computer display control program 33 by host computer 31, minimizing communication time like this and hardware handles time, greatly reduce correction time, raise the efficiency.
Below in conjunction with Fig. 3, a kind of LED calibration result inspection method of the embodiment of the present invention is described in detail.Particularly, in figure 3, the LED calibration result inspection method of the present embodiment mainly comprises step S31, S33, S35 and S37.
Step S31: the correction coefficient obtaining each pixel in the selected LED viewing area obtained by pointwise correction; In the present embodiment, pointwise correction can be gamma correction, also can be chromaticity correction (also namely brightness and colourity all correct), described selected viewing area be such as that of LED display corrects subregion, also can be the whole viewing area of LED display.
Step S33: create the bitmap identical with the resolution sizes of described LED viewing area, the gray-scale value of each pixel in wherein said bitmap is identical; In the present embodiment, described bitmap is such as 24 bitmaps, also can be 8 bitmaps, but the present invention is not as limit.
Step S35: utilize the correction coefficient of each pixel in described LED viewing area to regulate the color component value of respective pixel in described bitmap to check figure to obtain calibration result respectively.
Step S37: described calibration result is checked figure is presented at described LED viewing area for checking calibration result; In the present embodiment, calibration result checks that the host computer 31 of legend in this way in LED display control system 30 is as shown in Figure 1 sent to slave computer display control program 33, then shows calibration result by LED viewing area described in slave computer display control program 33 drived control and check figure.
Below by citing to above-mentioned steps S31, S33, S35 and S37 is described: suppose the red image R in the correction coefficient of each pixel in selected viewing area, G, B three-component coefficient is (R1, R2, R3), green image R, G, B three-component coefficient is (G1, G2, G3), blue image R, G, B three-component is (B1, B2, B3), the gray-scale value of each pixel needing the brightness checked corresponding is Gray, then check that the calibration result of LED viewing area display during the calibration result under this brightness checks that figure can obtain like this: create 24 bitmaps consistent with the resolution sizes of LED viewing area, if check the calibration result of red image, by the R of each pixel in bitmap, G, B value respectively assignment is Gray*R1, Gray*R2, Gray*R3, if check the calibration result of green image, by R, G, B value of pixel each in bitmap respectively assignment be Gray*G1, Gray*G2, Gray*G3, if check the calibration result of blue image, by R, G, B value of pixel each in bitmap respectively assignment be Gray*B1, Gray*B2, Gray*B3.So, redness can be obtained respectively, green, blue-correction effect check figure.It is the calibration result inspection method of chromaticity correction above, be suitable for too for gamma correction, during gamma correction, the component of degree n n correction coefficient of each color is 0, and namely in correction coefficient, R, G, B three-component coefficient of red image is (R1,0,0), R, G, B three-component coefficient of green image is (0, G2,0), R, G, B three-component coefficient of blue image is (0,0, B3).In addition, 8 bitmaps can also be adopted when gamma correction effect is checked.
Refer to Fig. 4, the LED calibration result inspection method of another embodiment of the present invention comprises step S41, S43 and S45.Particularly, step S41: the correction coefficient obtaining each pixel in the selected viewing area obtained by pointwise correction; Step S43: utilize the correction coefficient of each pixel in described viewing area to create the bitmap identical with the resolution sizes of described viewing area with same default gray-scale value, each pixel in wherein said bitmap exists grey value difference because of the difference of the correction coefficient of each pixel in described viewing area; And step S45: described calibration result is checked slave computer display control program that figure is sent to described viewing area comes viewing area described in drived control and shows described bitmap for checking calibration result.In brief, embodiment illustrated in fig. 4ly being different from part embodiment illustrated in fig. 3 and being mainly: be directly utilize the correction coefficient of each pixel in the LED viewing area same gray-scale value corresponding with checking brightness to create the bitmap identical with the resolution sizes of LED viewing area in Fig. 4, and each pixel in the bitmap created existing grey value difference because of the difference of the correction coefficient of each pixel in described LED viewing area.
Refer to Fig. 5, the means for correcting 50 of a kind of LED viewing area that the embodiment of the present invention provides, it comprises: pointwise correction module 51, bitmap creation module 53, calibration result check figure generation module 55, bitmap sending module 57 and target correction coefficient acquisition module 59.
Wherein, pointwise correction module 51 is for carrying out pointwise correction (such as gamma correction or chromaticity correction) to obtain the correction coefficient of each pixel in described LED viewing area to LED viewing area.Bitmap creation module 53 is for creating the bitmap identical with the resolution sizes of described LED viewing area, and the gray-scale value of each pixel in wherein said bitmap is identical.Calibration result checks that figure generation module 55 checks figure for utilizing the gray-scale value of respective pixel in the correction coefficient of each pixel in described LED viewing area and described bitmap to calculate calibration result.Bitmap sending module 57 comes LED viewing area described in drived control for the slave computer display control program described calibration result checked figure and be sent to described LED viewing area and shows described calibration result and check that figure is for checking whether calibration result meets the requirements.Target correction coefficient acquisition module 59 is for responding the correction coefficient of each pixel in described LED viewing area when corresponding calibration result meets the requirements by user's input operation as target correction coefficient.It is worth mentioning that at this, user's input operation that target correction coefficient acquisition module 59 responds refers to that calibration result confirms result, and also namely whether calibration result meets the requirements.
In addition, composition graphs 1, pointwise correction module 51 is such as mounted in the software in the correcting computer in corrective system 10, such as brightness or colourity pointwise correction software; Bitmap creation module 53, calibration result check the software module in the host computer 31 that figure generation module 55, bitmap sending module 57 and target correction coefficient acquisition module 59 are such as mounted in LED display control system 30.In addition, the step method performed by modules in the means for correcting of the LED viewing area of the present embodiment forms an embodiment of the bearing calibration of LED display of the present invention, does not repeat them here.
Moreover, composition graphs 1, for the correction coefficient of each correction subregion that target correction coefficient acquisition module 59 obtains, can be that unification is sent to slave computer display control program 33 after the correction coefficient obtaining each correction subregion, also can be that gradation is sent to slave computer display control program 33 after the calibration result of each correction subregion is checked.
In sum, the above embodiment of the present invention, by proposing a kind of method of checking calibration result fast, solves in prior art and checks in each Subarea calibration process and the problem that the time of calibration result is longer substantially reduce correction time, and easily realize, with low cost.
So far, apply specific case herein and set forth the principle of LED calibration result inspection method of the present invention and correlation-corrected method and device and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention; all will change in specific embodiments and applications; in sum, this description should not be construed as limitation of the present invention, and protection scope of the present invention should be as the criterion with appended claim.
Claims (11)
1. a bearing calibration for LED viewing area, is characterized in that, comprises step:
A () carries out pointwise correction to obtain the correction coefficient of each pixel in described LED viewing area to described LED viewing area;
B () creates the bitmap identical with the resolution sizes of described LED viewing area, the gray-scale value of each pixel in wherein said bitmap is identical;
C () utilizes the gray-scale value of respective pixel in the correction coefficient of each pixel in described LED viewing area and described bitmap to calculate calibration result and checks figure;
D described calibration result is checked that figure is presented at described LED viewing area for checking whether calibration result meets the requirements by ();
E (), when calibration result is undesirable, repeats step (a), (c) and (d) until calibration result meets the requirements;
F (), when calibration result meets the requirements, in described LED viewing area when being met the requirements by corresponding calibration result, the correction coefficient of each pixel is as target correction coefficient.
2. bearing calibration as claimed in claim 1, it is characterized in that, when the red image R in described correction coefficient, G, B three-component coefficient, green image R, G, B three-component coefficient and blue image R, G, B three-component coefficient are respectively (R1, R2, R3), (G1, G2, and (B1 G3), B2, B3) and described gray-scale value is Gray, step (c) comprising:
When needing the calibration result checking red image, by R, G, B component value of each pixel in described bitmap respectively assignment be Gray*R1, Gray*R2, Gray*R3, check figure to obtain red-correction effect;
When needing the calibration result checking green image, by R, G, B component value of each pixel in described bitmap respectively assignment be Gray*G1, Gray*G2, Gray*G3, check figure to obtain green correction effect;
When needing the calibration result checking blue image, by R, G, B component value of each pixel in described bitmap respectively assignment be Gray*B1, Gray*B2, Gray*B3, check figure to obtain blue-correction effect.
3. bearing calibration as claimed in claim 1, is characterized in that, in step (b), described bitmap is monochromatic or pure color bitmap.
4. bearing calibration as claimed in claim 3, it is characterized in that, described monochrome bitmap is red color bitmaps, green bitmap or blue bitmap.
5. bearing calibration as claimed in claim 1, it is characterized in that, when the pointwise correction in step (a) is pointwise chromaticity correction, the bitmap in step (b) is 24 bitmaps; And when the pointwise correction in step (a) is that brightness point by point corrects, the bitmap in step (b) is 8 bitmaps or 24 bitmaps.
6. a LED calibration result inspection method, is characterized in that, comprises step:
Obtain the correction coefficient of each pixel in the selected viewing area obtained by pointwise correction;
Create the bitmap identical with the resolution sizes of described viewing area, the gray-scale value of each pixel in wherein said bitmap is identical;
The correction coefficient of each pixel in described viewing area is utilized to regulate the color component value of respective pixel in described bitmap to check figure to obtain calibration result respectively; And
Described calibration result is checked figure is presented at described viewing area for checking calibration result.
7. LED calibration result inspection method as claimed in claim 6, it is characterized in that, the described correction coefficient of each pixel in described viewing area that utilizes regulates the color component value of respective pixel in described bitmap to check that the step of figure comprises to obtain calibration result respectively:
When needing the calibration result checking the first color image, by the first color component value of each pixel in described bitmap, the second color component value and the 3rd color component value respectively assignment be Gray*X1, Gray*X2, Gray*X3, check figure to obtain the first color correction effect; Wherein (X1, X2, X3) is the first color image three-component coefficient in described correction coefficient, and Gray is described gray-scale value.
8. LED calibration result inspection method as claimed in claim 6, is characterized in that, describedly described calibration result is checked figure is presented at described viewing area for checking that the step of calibration result comprises:
Described calibration result is checked figure is sent to the slave computer display control program of described viewing area, show described calibration result by viewing area described in described slave computer display control program drived control and check figure.
9. a LED calibration result inspection method, is characterized in that, comprises step:
Obtain the correction coefficient of each pixel in the selected viewing area obtained by pointwise correction;
Utilizing the correction coefficient of each pixel in described viewing area to create the bitmap identical with the resolution sizes of described viewing area with same default gray-scale value, there is grey value difference because of the difference of the correction coefficient of each pixel in described viewing area in each pixel in wherein said bitmap; And
Described calibration result is checked slave computer display control program that figure is sent to described viewing area comes viewing area described in drived control and shows described bitmap for checking calibration result.
10. a bearing calibration for LED display, is characterized in that, comprises step:
(S1) the selected correction subregion in the multiple correction subregions divided described LED display corrects to obtain the correction coefficient of each pixel in described selected correction subregion;
(S2) create the bitmap identical with the resolution sizes of described selected correction subregion, the gray-scale value of each pixel in wherein said bitmap is identical;
(S3) utilize the gray-scale value of respective pixel in the correction coefficient of each pixel in described selected correction subregion and described bitmap to calculate calibration result and check figure;
(S4) described calibration result is checked that figure is presented at described selected correction subregion for checking whether the calibration result of described selected correction subregion meets the requirements;
(S5) when the calibration result of described selected correction subregion is undesirable, step (S1), (S3) and (S4) is repeated until the calibration result of described selected correction subregion meets the requirements;
(S6) when the calibration result of described selected correction subregion meets the requirements, record the target correction coefficient of each pixel in described selected correction subregion, and judge whether described multiple correction subregions of described LED display have all corrected; And
(S7) when described multiple correction subregions of described LED display have all corrected, the target correction coefficient of each pixel in described multiple correction subregion is sent to the slave computer display control program of described LED display.
The means for correcting of 11. 1 kinds of LED viewing areas, is characterized in that, comprising:
Pointwise correction module, for carrying out pointwise correction to obtain the correction coefficient of each pixel in described LED viewing area to described LED viewing area;
Bitmap creation module, for creating the bitmap identical with the resolution sizes of described LED viewing area, the gray-scale value of each pixel in wherein said bitmap is identical;
Calibration result checks figure generation module, calculates calibration result check figure for utilizing the gray-scale value of respective pixel in the correction coefficient of each pixel in described LED viewing area and described bitmap;
Bitmap sending module, for checking that by described calibration result slave computer display control program that figure is sent to described LED viewing area comes LED viewing area described in drived control and shows described calibration result and check that figure is for checking whether calibration result meets the requirements; And
Target correction coefficient acquisition module, for responding the correction coefficient of each pixel in described LED viewing area when corresponding calibration result meets the requirements by user's input operation as target correction coefficient.
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| CN107507560A (en) * | 2017-08-21 | 2017-12-22 | 杭州视芯科技有限公司 | Brightness correcting method and system for LED display |
| CN112614460A (en) * | 2020-11-26 | 2021-04-06 | 西安诺瓦星云科技股份有限公司 | Method and device for sending correction coefficient, storage medium and processor |
| CN114677958A (en) * | 2022-03-30 | 2022-06-28 | 卡莱特云科技股份有限公司 | Correction method, device and system for LED display screen |
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| CN112614460A (en) * | 2020-11-26 | 2021-04-06 | 西安诺瓦星云科技股份有限公司 | Method and device for sending correction coefficient, storage medium and processor |
| CN114677958A (en) * | 2022-03-30 | 2022-06-28 | 卡莱特云科技股份有限公司 | Correction method, device and system for LED display screen |
| CN114677958B (en) * | 2022-03-30 | 2023-12-15 | 卡莱特云科技股份有限公司 | Correction method, device and system for LED display screen |
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