CN106652885A - Image processing based energy-saving method of LED display screen - Google Patents
Image processing based energy-saving method of LED display screen Download PDFInfo
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- CN106652885A CN106652885A CN201610864895.2A CN201610864895A CN106652885A CN 106652885 A CN106652885 A CN 106652885A CN 201610864895 A CN201610864895 A CN 201610864895A CN 106652885 A CN106652885 A CN 106652885A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses an image processing based energy-saving method of an LED display screen. An original image is provided, an original template image is established, and the original template image includes a lattice graph in which black and white pixels are arranged in alternate; the color of each pixel in the original image is mixed with the color of the pixel in the corresponding position in the original template image to synthesize a primary new image; pixel values of red, green and blue of all the pixels in the original template image are inverted according to bits, a new template image is obtained, and the color of each pixel in the original image is mixed with the color of the pixel in the corresponding position in the original template image to synthesize a secondary new image; and a time interval t is set, and the primary new image and the secondary new image are displayed in a cyclic manner at time interval t. According to the method of the invention, power consumption of the LED display screen can be reduced, and the service life of the LED display screen is prolonged.
Description
Technical field
The present invention relates to LED display, more particularly to a kind of LED display power-economizing method based on image procossing.
Background technology
LED display is different from other display carrier, and it can be according to the size Optional assembling of actual place and splicing, can
To realize ultra-large display application, miscellaneous video processing equipment can be coordinated in addition, and then realize magnificent mansion
Display scene and effect.Therefore, such product can be widely applied in various indoor and outdoor advertisings, and unique with it
Display effect, come out top in similar advertisement screen industry, with boundless market prospects.LED display has to be sent out
Light efficiency height, environmentally safe, saving energy consumption, the advantages of be easily assembled to realizing, become the following city image, abundant of being lifted
The important channel of resident's culture life.
Generally LED display is combined by several unit boxs, and accurately accurate splicing, makes full frame seeing between casing
Like an entirety, without casing piece.Unit box is made up of some cell modules, accurately accurate between cell module to spell
Connect, make Cell seem an entirety, without module piece.Cell module is arranged to make up by some equidistant pixels,
So LED display shows that the most basic component units of main body are pixels, each pixel is generally made up of 1-3 LED lamps, monochromatic
Display screen each pixel is typically 1 red light, and double-color display screen each pixel is typically 1 red light and 1 green light, full-color display
Shield each pixel and be typically 1 red light, 1 green light and 1 blue lamp.
By taking 2000 full-color LED display screens of every square meter as an example, have a 2000 × 3=6000 LED, some display screens each
Pixel has 4 LED, then have 8000 LED per square meter.The operating current of each LED is 20mA, and operating voltage is 5V, its
It is per square meter power consumption：
0.02A × 5V × 6000=600W
The LED display for assuming certain building is 100m2, then the power of the screen is 600W × 100m2=60000W=
60kW, if according to using 15 hours daily, once calculating, daily electric cost expenditure is 540 yuan, 1 year 365 for 0.6 yuan of the electricity charge
Its electric cost expenditure is 19.71 ten thousand yuan.
It can be seen that, the power consumption of LED display is very huge, and large-scale promotion application must take into consideration how to be asked under powered
Topic.If can be in the case where not needing LED display too bright, such as evening 19：After 00, if can try to reduce the bright of display screen
Degree, to reduce the operating current of each LED lamp tube, so as to reduce power consumption, saves electric energy.
The content of the invention
Goal of the invention：Excessive in order to solve the problems, such as the LED display power consumption that prior art is present, the present invention provides a kind of
LED display power-economizing method based on image procossing.
Technical scheme：A kind of LED display power-economizing method based on image procossing, comprises the following steps：
(1) original image is provided, is set up and original image size identical primary template image, primary template image is black
The spaced dot pattern of color pixel and white pixel；
(2) color of each pixel in original image is carried out with the color of correspondence position pixel in primary template image
Colour mixture is superimposed, and synthesizes a new images, and by LED display a new images are shown；
(3) new template image is set up, the black picture element position of new template image is the position of primary template image white pixel
Put, the white pixel position of new template image is the position of primary template picture black pixel, by each picture in original image
The color of element carries out colour mixture and is superimposed with the color of correspondence position pixel in new template image, synthesizes secondary new images；
(4) setting time interval t, after LED display shows new images t time, the secondary new images of display, when
After LED display shows the secondary new images t times, a new images are shown again, so circulation is original until providing next frame
Image.
Further, it is in the step (2) that the color of each pixel in original image is right with primary template image
Answering the color of position pixel carries out the concrete grammar of colour mixture superposition and is：It is black in the pixel of original image and primary template image
Color pixel is overlapped, and pixel intensity weakens；The pixel of original image is folded with the white pixel in primary template image
Plus, pixel intensity is constant.
Further, it is in the step (3) that the color of each pixel in original image is corresponding with new template image
The color of position pixel carries out the concrete grammar of colour mixture superposition：Black picture in the pixel and new template image of original image
Element is overlapped, and pixel intensity weakens；The pixel of original image is overlapped with the white pixel in new template image, pixel
Brightness is constant.
Further, the step (4) also includes：One conversion coefficient less than 1 of setting, respectively by new images and
Red, green, the blue pixel value of each pixel of secondary new images is multiplied by respectively the conversion coefficient, red after being changed
Color, green, blue pixel value are shown again as new pixel value.
Beneficial effect：Compare prior art, and the present invention passes through in the case where night does not need LED display too bright
Original image is superimposed with template image mixing so that the fluorescent tube of LED display half is in low current condition, after interval time t,
It is superimposed with new template image mixing so that second half fluorescent tube is in low current condition, so can both reduce disappearing for electric energy
Consumption, can extend the service life of LED lamp tube again.Secondly, by the way that the rgb pixel value of image is multiplied by a conversion less than 1
After coefficient, the gray value of image is reduced, reduce the operating current of each LED lamp tube, so as to further reduce power consumption, more
Save electric energy.
Description of the drawings
Fig. 1 is original image.
Fig. 2 is original image and the new images after primary template imaging importing.
Fig. 3 is primary template image.
Fig. 4 is new template image.
Fig. 5 is to reduce the new images after gray value.
Specific embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
(1) provide per frame original image, be illustrated in figure 1 the original image of the present embodiment, a blockage is represented in figure
A pixel on LED display.Set up and original image size identical primary template image, as shown in figure 3, primary template
Image is by the spaced dot pattern of black picture element and white pixel.
(2) color of each pixel in original image is carried out with the color of correspondence position pixel in primary template image
Colour mixture is superimposed, and synthesizes a new images.Pixel in original image is overlapped with the black picture element in primary template image
Afterwards, pixel intensity weakens, and LED lamp tube is close to be extinguished；The white pixel in pixel and primary template image in original image
After being overlapped, pixel intensity is constant, and LED lamp tube keeps the brightness of original image.Therefore, a new images and original image phase
Than two neighboring bright pixel spacing expansion is twice.Fig. 2 is the new images synthesized after the superposition of Fig. 1 and Fig. 3 colour mixtures, original
Outside the twice of the viewing ratio of image, this image is watched, have no effect on the information that original image is transmitted, and it is black in figure
LED lamp tube current decay at color pixel, can also reduce the power consumption of original close half.
(3) new template image is set up, new template image is also by the spaced dot chart of black picture element and white pixel
Shape, as shown in figure 4, new template image is compared with primary template image, the black picture element of primary template image becomes white pixel,
The white pixel of primary template image becomes black picture element.By in the color of each pixel in original image and new template image
The color of correspondence position pixel carries out colour mixture superposition, identical with the synthetic method of a new images, synthesizes secondary new images.It is original
After the black picture element in pixel and new template image in image is overlapped, pixel intensity weakens, and LED lamp tube is close to be put out
Go out；After the white pixel in pixel and new template image in original image is overlapped, pixel intensity is constant, LED lamp tube
Keep the brightness of original image.In the same manner, the secondary new images of synthesis nor affect on the information that original image is transmitted.
(4) conversion coefficient K less than 1 is set, respectively by a new images and each pixel of secondary new images
Red, green, blue three pixel values be multiplied by same conversion coefficient K respectively, by conversion after red, green, blue picture
Element value shows as new pixel value on LED display.Red, green, blue three pixel values of the new images after conversion
It is reduced, so as to reduce the gray value of original image.As shown in figure 5, after gray value is reduced, the work of each LED lamp tube
Electric current is reduced, and so as to reduce power consumption, reaches the purpose of further energy-conservation.
R '=R × K；
G '=G × K；
B '=B × K；
Wherein, R is the red pixel value before conversion；G is the green pixel value before conversion；B is the blueness before conversion
Pixel value；R ' is the red pixel value after conversion；G ' is the green pixel value after conversion；B ' is blue after conversion
Pixel value.
Setting time is spaced t, after LED display shows new images t time, secondary new images is shown, when LED shows
After display screen shows the secondary new images t times, a new images are shown again, so circulation is until providing next frame original image.
Therefore, the pixel of same position can be spaced the t times and extinguish once on LED display, i.e., when only having used t within the 2t times
Between, such that it is able to extend the service life of LED lamp tube, save cost.
The invention provides a kind of LED display power-economizing method based on image procossing, implements the technical scheme
Method and approach are a lot, and the above provide only embodiment generally.Not clear and definite composition portion in the present embodiment
Divide and can use prior art to be realized.
Claims (4)
1. a kind of LED display power-economizing method based on image procossing, it is characterised in that comprise the following steps：
(1) original image is provided, is set up and original image size identical primary template image, primary template image is black picture
Element and the spaced dot pattern of white pixel；
(2) color of correspondence position pixel in the color of each pixel in original image and primary template image is carried out into colour mixture
Superposition, synthesizes a new images, and by LED display a new images are shown；
(3) new template image is set up, new template image is the spaced dot pattern of black picture element and white pixel, new template
The black picture element position of image is the position of primary template image white pixel, and the white pixel position of new template image is original
The position of template image black picture element, by correspondence position pixel in the color of each pixel in original image and new template image
Color carry out colour mixture superposition, synthesize secondary new images；
(4) setting time interval t, after LED display shows new images t time, shows secondary new images, when LED shows
After display screen shows the secondary new images t times, a new images are shown again, so circulation is until providing next frame original image.
2. the LED display power-economizing method based on image procossing according to claim 1, it is characterised in that the step
(2) color of each pixel in original image is carried out into colour mixture with the color of correspondence position pixel in primary template image in fold
Plus concrete grammar be：The pixel of original image is overlapped with the black picture element in primary template image, and pixel intensity subtracts
It is weak；The pixel of original image is overlapped with the white pixel in primary template image, and pixel intensity is constant.
3. the LED display power-economizing method based on image procossing according to claim 1 and 2, it is characterised in that the step
Suddenly the color of each pixel in original image is carried out into colour mixture with the color of correspondence position pixel in new template image in (3) to fold
Plus concrete grammar be：The pixel of original image is overlapped with the black picture element in new template image, and pixel intensity weakens；
The pixel of original image is overlapped with the white pixel in new template image, and pixel intensity is constant.
4. the LED display power-economizing method based on image procossing according to claim 1, it is characterised in that also include：If
A fixed conversion coefficient less than 1, respectively by a new images and the red, green of each pixel, the blueness of secondary new images
Pixel value be multiplied by the conversion coefficient respectively, red, green, the blue pixel value after being changed as new pixel value again
Shown.
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| CN201610864895.2A CN106652885B (en) | 2016-09-29 | 2016-09-29 | A kind of LED display power-economizing method based on image procossing |
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| CN201610864895.2A CN106652885B (en) | 2016-09-29 | 2016-09-29 | A kind of LED display power-economizing method based on image procossing |
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| CN106652885B CN106652885B (en) | 2018-09-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108628571A (en) * | 2018-03-29 | 2018-10-09 | 西安电子科技大学 | A kind of display screen power-economizing method |
| CN109032552A (en) * | 2018-07-30 | 2018-12-18 | 深圳智芯数据服务有限公司 | A kind of display methods, device, equipment and storage medium |
| CN110473213A (en) * | 2019-08-16 | 2019-11-19 | 重庆邮电大学 | A kind of iron spectrum image segmentation method, apparatus and system based on priori dot matrix |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379358B (en) * | 2019-07-04 | 2021-03-30 | 南京宇丰晔禾信息科技有限公司 | LED display screen image playing and controlling method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108628571A (en) * | 2018-03-29 | 2018-10-09 | 西安电子科技大学 | A kind of display screen power-economizing method |
| CN108628571B (en) * | 2018-03-29 | 2021-01-15 | 西安电子科技大学 | Energy-saving method for display screen |
| CN109032552A (en) * | 2018-07-30 | 2018-12-18 | 深圳智芯数据服务有限公司 | A kind of display methods, device, equipment and storage medium |
| CN110473213A (en) * | 2019-08-16 | 2019-11-19 | 重庆邮电大学 | A kind of iron spectrum image segmentation method, apparatus and system based on priori dot matrix |
| CN110473213B (en) * | 2019-08-16 | 2021-08-10 | 重庆邮电大学 | Iron spectrum image segmentation method, device and system based on prior lattice |
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| CN106652885B (en) | 2018-09-25 |
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Inventor after: Tian Liufang Inventor after: Huang Qiang Inventor before: Huang Qiang |