CN105611202A - On-screen displaying method with self-adapting amplification effect - Google Patents
On-screen displaying method with self-adapting amplification effect Download PDFInfo
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- CN105611202A CN105611202A CN201511025403.2A CN201511025403A CN105611202A CN 105611202 A CN105611202 A CN 105611202A CN 201511025403 A CN201511025403 A CN 201511025403A CN 105611202 A CN105611202 A CN 105611202A
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- osd
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- resolution ratio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4888—Data services, e.g. news ticker for displaying teletext characters
Abstract
An on-screen displaying method with self-adapting amplification effect utilizes an on-screen displaying system with self-adapting amplification effect. The system comprises a resolution detecting module, an amplification factor adjusting module, a threshold self-setting module, a character memory module, an OSD (On-Screen Display) controller module and an OSD size updating module; the OSD controller module controls to select the threshold and enable the OSD; the OSD size updating module adjusts a widen size of a character dot matrix outputted by modules according to amplification factors and recalculates the range value of the amplified OSD; the resolution detecting module detects an incremental quantity of a current video compared with the threshold; and the amplification factor adjusting module adjusts the amplification factors according to the incremental quantity of the video resolution. The on-screen displaying method with self-adapting amplification effect can adjust the size in proportion according to different resolutions of an overlaid video source so as to beautify the displaying effect.
Description
Technical field
The present invention relates to a kind of screen display method of amplifying effect with self adaptation, belong to digital video image processingWith Display Technique field.
Background technology
Screen display (On-screen-display, OSD) refers to that the ad-hoc location on display shows appointmentCharacter, image, be a kind of mode of man-machine interaction, user can obtain certain information basis according to OSDThe information content operation such as adjusts to video or image. OSD technology has all obtained extensively should at numerous areasWith, as television set, video monitoring, processing system for video etc.
The realization of OSD is mainly to utilize character superimposing technique: in vision signal, sneak into character or time signal,Thereby realizing character or time and picture signal on the ad-hoc location of screen shows simultaneously. Therefore character stack skillArt requires strict control sequential to ensure the synchronism of character graphics signal and vision signal.
Screen display content can be stored in the memory outside sheet or in sheet, and dot matrix size immobilizes. Work as numeralWhen video resolution is high, screen display content is added in digital video and goes, and can produce screen display or too narrow and small,Shortcoming not attractive in appearance and be difficult for seeing clearly.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of screen display method of amplifying effect with self adaptation.
Technical program of the present invention lies in:
Amplify the screen display method of effect with self adaptation, wherein use the screen that amplifies effect with self adaptationUpper display system, this system comprises: resolution ratio detection module, multiplication factor adjusting module, threshold value are from setting mouldPiece, character memory module, osd controller module and more new module of OSD size, as shown in Figure 1,
Described osd controller module, controls the selection of threshold value and enabling of OSD; Described OSD size is upgraded mouldSize after piece is widened according to the character pattern of multiplication factor adjusting module output, recalculates the OSD after amplificationValue range; Described resolution ratio detection module detects the increment of current video compared with threshold value; Described times magnificationNumber adjusting module is according to video resolution increasing amount adjustment multiplication factor;
Described display methods comprises that step is as follows:
1) set minimum resolution threshold value: in the time that video source resolution ratio exceedes described threshold value, calculate and exceed ratioExample, amplifies in this ratio screen display content, to adapt to the change of resolution ratio;
2) establishing current video resolution ratio is x × y, and described resolution ratio detection module by the row field to input effectivelySignal, data useful signal and pixel clock counting, obtain the resolution ratio of current video and the position of current pixelPut, the rank addresses of output current pixel, according to the threshold value of input, calculates minimum discernible resolution ratio and changesVariable Δ min output, compare current video resolution ratio and threshold value, draws the recruitment x' × y' of resolution ratio;
3) resolution ratio increment and the I recognition resolution change amount of described multiplication factor adjusting module to inputCalculate, draw multiplication factor, OSD is amplified multiplication factor in the ratio that exceedes of video resolutionBe not limited to integral multiple, ranks direction is separately amplified, and multiplication factor is divided into " integral multiple+little several times ", by processingRead the address of reading of character memory module and realize, the ranks bit wide of rear character pattern is amplified in output simultaneously, givesOSD size more new module is upgraded;
4) described threshold value, from setting module according to the OSD size of osd controller input, deposits in memoryThe size of OSD, any multiple of procession amplifies as threshold value resolution ratio; Described character memory module,Deposit character pattern and OSD content, color in, preferred, described character pattern is 2n×2n, be easy to calculate and putLarge multiple.
Preferred according to the present invention, the amplification method that described multiplication factor adjusting module adopts be integral multiple amplify+Decimal doubly amplifies, and specifically comprises that step is as follows:
I. according to the discernible resolution changing amount of minimum Δ min and the recruitment x' × y' of input, to x '/ΔminDoThe value of the widening w round, computing drawing current character column direction, to y '/ΔchangeRound to obtain the opening up of character row directionWide value h, character pattern is by 2n×2nBe amplified to (2n+w)×(2n+ h), wherein w is that character is widenedRow figure place, h is the row figure place that character is widened;
Ii. according to multiplication factor, character pattern particular row and column are repeated to output, to w/2nRound, obtain characterThe every row of dot matrix should repeat to export number of times; To h/2nRound, obtain the every row of character pattern and should repeat to export number of times; ForIntegral multiple amplifies;
To w/2nRemainder obtains repeating separately output columns once again, writes w%2 heren, according to these rowNumber can be specified arbitrarily the row that need to be repeated output, and designation method is not unique;
To h/2nRemainder obtains repeating separately output line number once again, writing h%2n, can according to this line numberAppointment need to be repeated the row of output arbitrarily, and designation method is not unique;
, utilize said method to realize non-integer amplification.
Preferred according to the present invention, evenly appointment will be repeated the ranks of the character of output. To reach good puttingLarge display effect. For example 8 × 8 dot matrix are expanded to 19 × 8, character is amplified to 2.375 times, can specify2,4,6 column weights of character are exported 3 times again, and all the other column weights are exported 2 times again.
The invention has the advantages that:
A kind of screen display method of amplifying effect with self adaptation of the present invention, can dividing with the video source of stackDistinguish rate difference and carry out in proportion size adjustment, beautify display effect.
Brief description of the drawings
The structure chart of OSD in Fig. 1 the method for the invention;
In Fig. 2 the method for the invention, the mapping relations figure between the storage content of ROM and RAM.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is described in detail, but is not limited to this.
Shown in Fig. 1,2.
Embodiment,
Amplify the screen display method of effect with self adaptation, wherein use the screen that amplifies effect with self adaptationUpper display system, this system comprises: resolution ratio detection module, multiplication factor adjusting module, threshold value are from setting mouldPiece, character memory module, osd controller module and more new module of OSD size, as shown in Figure 1,
Described osd controller module, controls the selection of threshold value and enabling of OSD; Described OSD size is upgraded mouldSize after piece is widened according to the character pattern of multiplication factor adjusting module output, recalculates the OSD after amplificationValue range;
Described display methods comprises that step is as follows:
1) set minimum resolution threshold value: in the time that video source resolution ratio exceedes described threshold value, calculate and exceed ratioExample, amplifies in this ratio screen display content, to adapt to the change of resolution ratio;
2) establishing current video resolution ratio is x × y, and described resolution ratio detection module by the row field to input effectivelySignal, data useful signal and pixel clock counting, obtain the resolution ratio of current video and the position of current pixelPut, the rank addresses of output current pixel, according to the threshold value of input, calculates minimum discernible resolution ratio and changesVariable Δ min output, compare current video resolution ratio and threshold value, draws the recruitment x' × y' of resolution ratio;
3) resolution ratio increment and the I recognition resolution change amount of described multiplication factor adjusting module to inputCalculate, draw multiplication factor, OSD is amplified multiplication factor in the ratio that exceedes of video resolutionBe not limited to integral multiple, ranks direction is separately amplified, and multiplication factor is divided into " integral multiple+little several times ", by processingRead the address of reading of character memory module and realize, the ranks bit wide of rear character pattern is amplified in output simultaneously, givesOSD size more new module is upgraded;
4) described threshold value, from setting module according to the OSD size of osd controller input, deposits in memoryThe size of OSD, any multiple of procession amplifies as threshold value resolution ratio; Described character memory module,Deposit character pattern and OSD content, color in, preferred, described character pattern is 2n×2n, be easy to calculate and putLarge multiple.
The amplification method that described multiplication factor adjusting module adopts is that integral multiple amplification+decimal doubly amplifies, specifically bagDraw together step as follows:
I. according to the discernible resolution changing amount of minimum Δ min and the recruitment x' × y' of input, to x '/ΔminDoThe value of the widening w round, computing drawing current character column direction, to y '/ΔchangeRound to obtain the opening up of character row directionWide value h, character pattern is by 2n×2nBe amplified to (2n+w)×(2n+ h), wherein w is that character is widenedRow figure place, h is the row figure place that character is widened;
Ii. according to multiplication factor, character pattern particular row and column are repeated to output, to w/2nRound, obtain characterThe every row of dot matrix should repeat to export number of times; To h/2nRound, obtain the every row of character pattern and should repeat to export number of times; ForIntegral multiple amplifies;
To w/2nRemainder obtains repeating separately output columns once again, writes w%2 heren, according to these rowNumber can be specified arbitrarily the row that need to be repeated output, and designation method is not unique;
To h/2nRemainder obtains repeating separately output line number once again, writing h%2n, can according to this line numberAppointment need to be repeated the row of output arbitrarily, and designation method is not unique;
, utilize said method to realize non-integer amplification.
Evenly appointment will be repeated the ranks of the character of output. To reach good amplification display effect. For example will8 × 8 dot matrix expand to 19 × 8, character are amplified to 2.375 times, 2,4,6 column weights that can designated characterExport again 3 times, all the other column weights are exported 2 times again.
Concrete application examples according to the embodiment of the present invention:
OSD size in should use-case is 256 × 208. The threshold value of setting video resolution is 640 × 480, noCapping. The character that OSD uses stores in ROM and goes by 8 × 8 latticed forms, coexists into 256 characters,ROM size is 1k × 8. Character index RAM deposits the word in corresponding ROM in by OSD character DISPLAY ORDERSymbol first address, with reference to Fig. 2, OSD shares 32 × 26 characters, and corresponding row column address is 5. OSDThe color that middle character is corresponding deposits in color ROM and goes. Above mentioned ROM and RAM can be arbitrary formMemory.
Resolution ratio detection module calculates input video according to current line field signal and pixel clock, data useful signalResolution ratio and export the rank addresses of current pixel. The threshold value of the resolution ratio of current input video and input is enteredRow is relatively exported the recruitment of minimum discernible resolution changing amount and resolution ratio, if less than threshold value, increasesAmount is 0.
The amplification method that multiplication factor adjustment provides by technical scheme, calculates the w after expansion, h output characterWiden figure place. By to the change of reading RAM and ROM rank addresses value and then size that character is read in change. PutLarge multiple adjusting module using pixel current line column address respectively except (w > > n) and (h > > is n) as character address. WordSymbol high five addresses of reading as character index RAM, address, choose character. Character address low three as wordAddress is got in the character row column selection of symbol ROM. Afterwards to w%2nAnd h%2nThe value that may exist discuss respectively.For example w%2n=1, can export again by designated character dot matrix the 4th column weight, now judge that character row address value is low by 3Whether position equals 4, if equaled, address subtracts an output.
Claims (3)
1. a screen display method of amplifying effect with self adaptation, is characterized in that, wherein uses band certainlyThe display system on screen that adapts to amplify effect, this system comprises: resolution ratio detection module, multiplication factor are adjusted mouldPiece, threshold value be from setting module, character memory module, osd controller module and more new module of OSD size,Described osd controller module, controls the selection of threshold value and enabling of OSD; More new module root of described OSD sizeSize after widening according to the character pattern of multiplication factor adjusting module output, recalculates the model of the OSD after amplificationEnclose value;
Described display methods comprises that step is as follows:
1) set minimum resolution threshold value: in the time that video source resolution ratio exceedes described threshold value, calculate and exceed ratioExample, amplifies in this ratio screen display content;
2) establishing current video resolution ratio is x × y, and described resolution ratio detection module by the row field to input effectivelySignal, data useful signal and pixel clock counting, obtain the resolution ratio of current video and the position of current pixelPut, the rank addresses of output current pixel, according to the threshold value of input, calculates minimum discernible resolution ratio and changesVariable Δ min output, compare current video resolution ratio and threshold value, draws the recruitment x' × y' of resolution ratio;
3) resolution ratio increment and the I recognition resolution change amount of described multiplication factor adjusting module to inputCalculate, draw multiplication factor, OSD is amplified multiplication factor in the ratio that exceedes of video resolutionBe not limited to integral multiple, ranks direction is separately amplified, and multiplication factor is divided into " integral multiple+little several times ", by processingRead the address of reading of character memory module and realize, the ranks bit wide of rear character pattern is amplified in output simultaneously, givesOSD size more new module is upgraded;
4) described threshold value, from setting module according to the OSD size of osd controller input, deposits in memoryThe size of OSD, any multiple of procession amplifies as threshold value resolution ratio; Described character memory module,Deposit character pattern and OSD content, color in, preferred, described character pattern is 2n×2n。
2. a kind ofly according to claim 1 amplify the screen display method of effect with self adaptation, its feature existsIn, the amplification method that described multiplication factor adjusting module adopts is that integral multiple amplification+decimal doubly amplifies, specifically bagDraw together step as follows:
I. according to the discernible resolution changing amount of minimum Δ min and the recruitment x' × y' of input, to x '/ΔminDoThe value of the widening w round, computing drawing current character column direction, to y '/ΔchangeRound to obtain the opening up of character row directionWide value h, character pattern is by 2n×2nBe amplified to (2n+w)×(2n+ h), wherein w is that character is widenedRow figure place, h is the row figure place that character is widened;
Ii. according to multiplication factor, character pattern particular row and column are repeated to output, to w/2nRound, obtain characterThe every row of dot matrix should repeat to export number of times; To h/2nRound, obtain the every row of character pattern and should repeat to export number of times; ForIntegral multiple amplifies;
To w/2nRemainder obtains repeating separately output columns once again, writes w%2 heren；
To h/2nRemainder obtains repeating separately output line number once again, writing h%2n；
, utilize said method to realize non-integer amplification.
3. a kind ofly according to claim 2 amplify the screen display method of effect with self adaptation, its feature existsIn, evenly appointment will be repeated the ranks of the character of output.
Priority Applications (1)
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| CN201511025403.2A CN105611202B (en) | 2015-12-30 | 2015-12-30 | A kind of band adaptively amplifies the screen display method of effect |
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| CN201511025403.2A CN105611202B (en) | 2015-12-30 | 2015-12-30 | A kind of band adaptively amplifies the screen display method of effect |
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| CN105611202A true CN105611202A (en) | 2016-05-25 |
| CN105611202B CN105611202B (en) | 2019-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112748834A (en) * | 2019-10-31 | 2021-05-04 | 京东方科技集团股份有限公司 | Display method, display device, electronic equipment and storage medium |
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| CN112748834A (en) * | 2019-10-31 | 2021-05-04 | 京东方科技集团股份有限公司 | Display method, display device, electronic equipment and storage medium |
| CN112748834B (en) * | 2019-10-31 | 2022-11-01 | 京东方科技集团股份有限公司 | Display method, display device, electronic equipment and storage medium |
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