CN102215428B - Picture processing method and STB (Set Top Box) - Google Patents
Picture processing method and STB (Set Top Box) Download PDFInfo
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- CN102215428B CN102215428B CN 201110171595 CN201110171595A CN102215428B CN 102215428 B CN102215428 B CN 102215428B CN 201110171595 CN201110171595 CN 201110171595 CN 201110171595 A CN201110171595 A CN 201110171595A CN 102215428 B CN102215428 B CN 102215428B
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Abstract
The embodiment of the invention discloses a picture processing method. The method comprises the following steps: carrying out statistics on a color value of each pixel in the decoded bitmap data of a picture; according to the border of a concentration region of pixels with the same color value in the bitmap data, blocking the bitmap data to obtain multiple subblock bitmap data; setting marks on the subblock bitmap data with the same color value of pixels; storing the marks of the marked subblock bitmap data; and releasing the memory occupied by the marked subblock bitmap data. The picture processing method provided by the invention reduces the memory occupied by the bitmap data of the picture and saves memory resource. The invention also provides a corresponding STB (Set Top Box).
Description
Technical field
The present invention relates to the picture processing technology field, be specifically related to a kind of photograph processing method and STB.
Background technology
The solution that present DTV is promoted the use of, normally the television set to existing reception analog signal is equipped with STB.Be equipped with that the start-up picture of TV is a menu mode behind the STB, can consult Figure 1A, wherein, one-level menu, second-level menu all are to obtain firing line, and can respond the user on remote controller to the operation of four direction key up and down, and move." column picture one " and " column picture two " can switch when focus moves to the relevant position simultaneously, shows the picture that corresponding column is relevant.Realize this effect, make when using in the set-top box environment, generally can use three pictures: background picture, like Figure 1B, column picture one, like Fig. 1 C, column picture two, like Fig. 1 D.There are two white spaces that area is bigger in Background sector-meeting under this scene.In the practical application, these two zones generally all are white.In fact, the color value of these two white spaces is unimportant.The end user can't see this two zones, because at any time, all can be covered by the column picture of correspondence.
Such background picture will be decoded earlier when showing, obtain the data bitmap of this background picture after; Pointwise shows this background picture again, when re-using this background picture next time, repeats first decoding again; Pointwise operation displayed is again lost time, and the committed memory space is big.
TV is when getting into video clip after being equipped with STB, and its interface model can be consulted Fig. 2 A, and wherein lower right area is the video area, and this part zone is actual to be transparent region.Because at television environment, using actual with video is at two different layers.Hierarchical relationship is shown in Fig. 2 B, and application layer is on video layer, promptly more near the user.When the user chooses a certain film, can be simultaneously through the video control interface, on the form display video layer of this film with small video, and it is fully corresponding with the layer transparent zone with size to control its position.When the user by after confirming, hide application layer again, through the video control interface, TV is in full screen in video layer again.
Realize the video clip of this effect, make in the set-top box environment when using that need to make the background picture like Fig. 2 A, the background picture under this scene has bigger transparent region; Such background picture will be decoded earlier when showing, obtain the data bitmap of this background picture after; Pointwise shows this background picture again, when re-using this background picture next time, repeats first decoding again; Pointwise operation displayed is again lost time, and the committed memory space is big.
Summary of the invention
The embodiment of the invention provides a kind of image processing method and STB that can the save memory resource.
A kind of photograph processing method comprises:
The color value of each pixel in the data bitmap of statistics picture;
According to the border of same color value pixel concentrated area in the said data bitmap, said data bitmap is carried out piecemeal, obtain a plurality of fritter data bitmaps;
Mark is set for the identical fritter data bitmap of pixel color value;
Store the said mark that markd fritter data bitmap is set;
Discharge the shared internal memory of said markd fritter data bitmap.
A kind of STB comprises:
Statistic unit is used for adding up the color value of each pixel of the data bitmap of picture;
Divide module unit; Be used for after said statistic unit counts the color value of each pixel of data bitmap of picture; According to the border of same color value pixel concentrated area in the said data bitmap, said data bitmap is carried out piecemeal, obtain a plurality of fritter data bitmaps;
Flag setting unit is used for after said minute module unit given the data bitmap morsel data bitmap of said picture, mark being set for the identical fritter data bitmap of pixel color value;
Memory cell is used to store the said mark that markd fritter data bitmap is set;
The internal memory releasing unit is used to discharge the shared internal memory of said markd fritter data bitmap.
After the embodiment of the invention is employed in the picture decoding; Color value to each pixel in the decoded picture data bitmap is added up, and according to the border of same color value pixel concentrated area in the said data bitmap, said data bitmap is carried out piecemeal; Obtain a plurality of fritter data bitmaps; Mark is set for the identical fritter data bitmap of pixel color value, stores the said mark that markd fritter data bitmap is set, discharge the shared internal memory of said markd fritter data bitmap.In prior art, the whole data bitmap of picture to compare, the photograph processing method that the embodiment of the invention provides has reduced the shared internal memory of data bitmap of picture, has practiced thrift memory source.
Description of drawings
Figure 1A is the sketch map after the background picture combination of the prior art;
Figure 1B～1D is the sketch map after three combination pictures separate;
Fig. 2 A is an application background picture sketch map;
Fig. 2 B is the level sketch map of application and video;
Fig. 3 is the first embodiment sketch map of image processing method of the present invention;
Fig. 4 is the second embodiment sketch map of image processing method of the present invention;
Fig. 5 is the sketch map behind the picture data bitmap piecemeal in the application scenarios of the inventive method;
Fig. 6 is the sketch map behind the picture data bitmap piecemeal in the application scenarios of the inventive method;
Fig. 7 is the first embodiment sketch map of STB of the present invention;
Fig. 8 is the second embodiment sketch map of STB of the present invention.
Embodiment
The embodiment of the invention provides a kind of photograph processing method, can the save memory resource.The embodiment of the invention also provides corresponding STB.Below be elaborated respectively.
See also Fig. 3, first embodiment of image processing method of the present invention comprises:
101, decoding picture obtains the data bitmap of picture;
102, the color value of each pixel in the data bitmap of statistics picture;
For the ARGB8888 color format, the color of a pixel has four kinds, is respectively transparent alpha, red red, and green green, blue blue, statistics can obtain the color value of each pixel.
103, according to the border of same color value pixel concentrated area in the said data bitmap, said data bitmap is carried out piecemeal, obtain a plurality of fritter data bitmaps;
When having bulk transparent region or pure color zone for the picture of using; With the data bitmap of said picture border piecemeal according to transparent region or pure color zone; Be embodied in and be border piecemeal in the data bitmap according to the same color value pixel concentrated area in the data bitmap; Can access a plurality of fritter data bitmaps, can include the fritter data bitmap of multiple color value in the fritter data bitmap, the color value that also has pixel all is transparent fritter data bitmap; Or the color value of pixel is the fritter data bitmap of pure color, all is green fritter data bitmap like the color value of pixel.
104, mark is set for the identical fritter data bitmap of pixel color value;
Behind the data bitmap piecemeal with picture, obtaining a plurality of fritter data bitmaps, all is transparent fritter data bitmap for the color value of pixel, clear mark is set for this fritter data bitmap;
Color value for pixel all is the fritter data bitmap of pure color, as all being pure blue, and green etc., the color value of giving said pixel all is that the fritter data bitmap of pure color is provided with the pure color mark;
For pixel the fritter data bitmap of multiple color value is arranged, mark is not set.
105, the said mark that markd fritter data bitmap is set of storage;
Mark comprises pure color mark and clear mark, pure color mark or clear mark on the storage fritter data bitmap;
Simultaneously, also store the location parameter of each fritter data bitmap in the data bitmap of said picture;
Store the color value of pixel in the said fritter data bitmap that is provided with the pure color mark.
106, discharge the shared internal memory of said markd fritter data bitmap;
For the transparent region of picture, before demonstration be identical after showing, so do not need the data bitmap of transparent region, can discharge so be provided with the shared decode memory of the data bitmap of clear mark, with the save memory resource;
For the pure color of picture zone, when showing, only need the zone that color value is filled into the data bitmap place get final product, do not need pointwise to replace, can discharge so be provided with the shared decode memory of the fritter data bitmap of pure color mark, with the save memory resource.
In the embodiment of the invention, after the picture decoding, the color value of each pixel in the data bitmap of statistics picture; Border according to same color value pixel concentrated area in the said data bitmap; Said data bitmap is carried out piecemeal, obtain a plurality of fritter data bitmaps, mark is set for the identical fritter data bitmap of pixel color value; Store the said mark that markd fritter data bitmap is set, discharge the shared internal memory of said markd fritter data bitmap.In prior art, after the picture decoding, the decoded data bitmap of picture is compared, and the shared decode memory of fritter data bitmap that the embodiment of the invention will have mark discharges, and under the prerequisite that does not influence demonstration, has practiced thrift memory source.
Consult Fig. 4, on the basis of above-mentioned first embodiment, second embodiment of the embodiment of the invention comprises:
201, according to the location parameter of said each fritter data bitmap, check whether each fritter data bitmap is provided with mark, if clear mark is arranged, execution in step 202, if the pure color mark is arranged, execution in step 203, if unmarked, execution in step 206.
202, indicated number equipment does not show the said zone that is provided with the fritter data bitmap place of clear mark;
Because of the color value that is provided with each pixel in the fritter data bitmap of clear mark all is transparent, before showing be identical after showing, so need not show the zone that the fritter data bitmap that is provided with clear mark belongs to.
203,, call rectangle and fill interface to the said zone that is provided with the fritter data bitmap place of pure color mark according to the said location parameter of fritter data bitmap in the data bitmap of said picture that is provided with the pure color mark;
For the fritter data bitmap that is provided with the pure color mark; Only needing that before demonstration color value is filled in the zone at this data bitmap place gets final product; According to the location parameter of fritter data bitmap in the data bitmap of whole picture that is provided with the pure color mark; Call rectangle and fill interface, prepare color value is filled into this zone to the said position that is provided with the fritter data bitmap of pure color mark.
204, the said color value that is provided with the fritter data bitmap of pure color mark is filled into the zone at the place of the said fritter data bitmap that is provided with the pure color mark;
Use rectangle to fill interface, the color value that this fritter data bitmap is stored is filled in the corresponding data bitmap zone.
205, indicated number equipment shows the said zone that is provided with the fritter data bitmap place of pure color mark;
In step 205, after color value was populated, indicated number equipment showed the said zone that is provided with the fritter data bitmap place of pure color mark.
206, indicated number equipment shows the zone at said unmarked fritter data bitmap place;
Pixel in the unmarked fritter data bitmap has multiple color value; According to the location parameter of this unmarked fritter data bitmap in the data bitmap of whole picture; The color value of the pixel of pointwise replacement data bitmap region; After having replaced, indicated number equipment shows the zone at said unmarked fritter data bitmap place.
In the embodiment of the invention; On the basis of above-mentioned first embodiment,, check whether each fritter data bitmap is provided with mark according to the location parameter of said each fritter data bitmap; If be provided with clear mark; Indicated number equipment does not show the said zone that is provided with the fritter data bitmap place of clear mark, if be provided with the pure color mark, uses rectangle to fill interface; The color value of the pixel that this pure color of storage is regional is filled into the zone at this pure color data bitmap place, and indicated number equipment shows the said zone that is provided with the fritter data bitmap place of pure color mark.Compared with prior art, the embodiment of the invention had both been practiced thrift memory source, had accelerated the display speed of picture again.
For ease of understanding, with a concrete application scenarios photograph processing method of describing in the foregoing description is described in detail below, concrete:
For the picture that is shown among the Figure 1B that should be used as background, according to photograph processing method provided by the invention, after the picture decoding; Obtain the data bitmap of picture,, said data bitmap is carried out piecemeal according to the border of same color value pixel concentrated area in the said data bitmap; Obtain 6 fritter data bitmaps, as shown in Figure 5, wherein be the 1. 2. 3. fritter data bitmap shown in 5.; Pixel wherein has multiple color value, and 4. the color value of pixel is a pure color in the fritter data bitmap shown in 6., should use to be white in the scene; Fritter data bitmap shown in giving 4. 6. is provided with the pure color mark, and the storage 4. color value of pixel, i.e. white in the location parameter of fritter data bitmap in whole data bitmap shown in 6. and the 4. fritter data bitmap shown in 6.; The shared decode memory of data bitmap shown in discharging 4. 6.; When showing, only need according to 4. 6. location parameter, location parameter comprises: the abscissa in the upper left corner, fritter data bitmap rectangular area; Upper right corner ordinate, the width of rectangular area and height.Call rectangle and fill interface, rectangle is filled general formula and is: fill_rect (int x, int y, int w, int h, unsigned int color); Wherein, Fill_rect representes the rectangle filling, and x is the abscissa in the upper left corner, fritter data bitmap rectangular area, and y is the ordinate in the upper right corner, fritter data bitmap rectangular area; W is the width of fritter data bitmap rectangular area, and h is the height of fritter data bitmap rectangular area.The zone at the data bitmap place shown in being filled into 4. white 6., but just 4. indicated number equipment show the 6. band of position.
For the picture shown in application layer Fig. 2 A, according to photograph processing method provided by the invention, after the picture decoding; Obtain the data bitmap of picture,, said data bitmap is carried out piecemeal according to the border of same color value pixel concentrated area in the said data bitmap; Obtain 4 fritter data bitmaps, as shown in Figure 6, wherein be the 1. 2. fritter data bitmap shown in 3.; Pixel wherein has multiple color value, and the color value of pixel is transparent in the fritter data bitmap shown in 4., and the fritter data bitmap shown in giving 4. is provided with clear mark; And the location parameter of fritter data bitmap in whole data bitmap shown in the storage 4.; The shared decode memory of data bitmap shown in discharging 4., when showing, the transparent region shown in 4. indicated number equipment do not show.
Should use in the scene; For the picture that has large-area transparent zone or pure color zone, after the picture decoding, according to the color value of each pixel of adding up; Regional according to transparent region and pure color to behind the data bitmap piecemeal of whole picture; Discharge the decode memory in transparent region or pure color zone, under the prerequisite that does not influence demonstration, practiced thrift memory source.
Introduce the STB embodiment in the embodiment of the invention below, see also Fig. 7, the STB in the embodiment of the invention comprises:
Internal memory releasing unit 305 is used to discharge the shared internal memory of said markd fritter data bitmap.
In the present embodiment; The color value of each pixel divides the statistics of module unit 302 according to statistic unit 301 in the data bitmap of statistic unit 301 statistics pictures, according to the border of same color value pixel concentrated area in the data bitmap said data bitmap is carried out piecemeal; Obtain a plurality of fritter data bitmaps; Behind the piecemeal, flag setting unit 303 is provided with mark for the identical fritter data bitmap of pixel color value, and memory cell 304 storages are provided with the mark of markd fritter data bitmap; Internal memory releasing unit 305 discharges the shared internal memory of said markd fritter data bitmap.Compared with prior art, the image processing method that inventive embodiments provides under the prerequisite that does not influence demonstration, has been practiced thrift memory source.
See also Fig. 8, the STB in the embodiment of the invention also comprises:
404 indicating members are used for when said inspection unit is checked through the fritter data bitmap and is provided with clear mark, and indicated number equipment does not show the said zone that is provided with the fritter data bitmap place of clear mark;
Said indicating member 404 is further used for when said inspection unit is checked through the fritter data bitmap and is provided with the pure color mark, and indicated number equipment shows the said zone that is provided with the fritter data bitmap place of pure color mark;
Said indicating member 404 is further used for when said inspection unit is checked through the fritter data bitmap and mark is not set, and indicated number equipment shows the zone at said unmarked fritter data bitmap place.
Call unit 402; Be used for before said indicating member indicated number equipment shows the said fritter data bitmap that is provided with the pure color mark; According to the said location parameter of fritter data bitmap in the data bitmap of said picture that is provided with the pure color mark, call rectangle and fill interface to the said zone that is provided with the fritter data bitmap place of pure color mark;
In the embodiment of the invention; Whether inspection unit 401 each fritter data bitmap of inspection are provided with mark; If be checked through the zone at fritter data bitmap place clear mark is arranged, indicating member 404 indicated number equipment do not show the said zone that is provided with the fritter data bitmap place of clear mark, if inspection unit 401 is checked through fritter data bitmap region and is provided with the pure color mark; Call unit 402 calls rectangle and fills interface; Filler cells 403 uses rectangles to fill interfaces, and the color value of the fritter data bitmap that is provided with the pure color mark is filled into the said zone that is provided with the fritter data bitmap of pure color mark, STB provided by the invention; Both save memory source, accelerated the display speed of picture again.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to accomplish through program; This program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
More than photograph processing method and STB that the embodiment of the invention provided have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a photograph processing method is characterized in that, comprising:
The color value of each pixel in the data bitmap of statistics picture;
According to the border of same color value pixel concentrated area in the said data bitmap, said data bitmap is carried out piecemeal, obtain a plurality of fritter data bitmaps;
Mark is set for the identical fritter data bitmap of pixel color value;
Store the said mark that markd fritter data bitmap is set;
Discharge the shared internal memory of said markd fritter data bitmap.
2. photograph processing method according to claim 1 is characterized in that, when the said mark that markd fritter data bitmap is set of said storage, also comprises:
Store the location parameter of each fritter data bitmap in the data bitmap of said picture.
3. photograph processing method according to claim 2 is characterized in that, said mark comprises clear mark and pure color mark, also comprises when being labeled as the pure color mark when said:
Store the color value of pixel in the said fritter data bitmap that is provided with the pure color mark.
4. photograph processing method according to claim 3 is characterized in that, after the step of the shared internal memory of the said markd fritter data bitmap of said release, also comprises:
According to the location parameter of said each fritter data bitmap, check whether each fritter data bitmap region is provided with mark;
If have clear mark, indicated number equipment not to show the said zone that is provided with the fritter data bitmap place of clear mark;
If the pure color mark is arranged, indicated number equipment shows the said zone that is provided with the fritter data bitmap place of pure color mark;
If unmarked, indicated number equipment shows the zone at said unmarked fritter data bitmap place.
5. photograph processing method according to claim 4 is characterized in that, for the fritter data bitmap that is provided with the pure color mark, shows that at indicated number equipment the said step that is provided with the fritter data bitmap of pure color mark also comprises before:
According to the said location parameter of fritter data bitmap in the data bitmap of said picture that is provided with the pure color mark, call rectangle and fill interface to the said zone that is provided with the fritter data bitmap place of pure color mark;
The said color value that is provided with the fritter data bitmap of pure color mark is filled into the said zone that is provided with the fritter data bitmap place of pure color mark.
6. a STB is characterized in that, comprising:
Statistic unit is used for adding up the color value of each pixel of the data bitmap of picture;
Divide module unit; Be used for after said statistic unit counts the color value of each pixel of data bitmap of picture; According to the border of same color value pixel concentrated area in the said data bitmap, said data bitmap is carried out piecemeal, obtain a plurality of fritter data bitmaps;
Flag setting unit is used for after said minute module unit given the data bitmap morsel data bitmap of said picture, mark being set for the identical fritter data bitmap of pixel color value;
Memory cell is used to store the said mark that markd fritter data bitmap is set;
The internal memory releasing unit is used to discharge the shared internal memory of said markd fritter data bitmap.
7. STB according to claim 6 is characterized in that, when the said mark that markd fritter data bitmap is set of said storage, also comprises:
Said memory cell is further used for when the said mark that markd fritter data bitmap is set of storage, storing the location parameter in the data bitmap of each fritter data bitmap at said picture.
8. STB according to claim 7 is characterized in that, said mark comprises clear mark and pure color mark, when said when being labeled as the pure color mark,
Said memory cell is further used for storing the color value of pixel in the said fritter data bitmap that is provided with the pure color mark.
9. STB according to claim 8 is characterized in that, comprising:
Inspection unit is used for after said internal memory releasing unit discharges the shared internal memory of said markd fritter data bitmap, according to the location parameter of said each fritter data bitmap, checks whether each fritter data bitmap is provided with mark;
Indicating member is used for when said inspection unit is checked through the fritter data bitmap and is provided with clear mark, and indicated number equipment does not show the said zone that is provided with the fritter data bitmap place of clear mark;
Said indicating member is further used for when said inspection unit is checked through the fritter data bitmap and is provided with the pure color mark, and indicated number equipment shows the said zone that is provided with the fritter data bitmap place of pure color mark;
Said indicating member is further used for when said inspection unit is checked through the fritter data bitmap and mark is not set, and indicated number equipment shows the zone at said unmarked fritter data bitmap place.
10. STB according to claim 9 is characterized in that, comprising:
Call unit; Be used for before said indicating member indicated number equipment shows the said fritter data bitmap that is provided with the pure color mark; According to the said location parameter of fritter data bitmap in the data bitmap of said picture that is provided with the pure color mark, call rectangle and fill interface to the said zone that is provided with the fritter data bitmap place of pure color mark;
Filler cells is used for the said color value that is provided with the fritter data bitmap of pure color mark is filled into the said zone that is provided with the fritter data bitmap place of pure color mark.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110171595 CN102215428B (en) | 2011-06-23 | 2011-06-23 | Picture processing method and STB (Set Top Box) |
| HK12102308.9A HK1161794A1 (en) | 2011-06-23 | 2012-03-07 | A picture processing method and set-top box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110171595 CN102215428B (en) | 2011-06-23 | 2011-06-23 | Picture processing method and STB (Set Top Box) |
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| CN102215428A CN102215428A (en) | 2011-10-12 |
| CN102215428B true CN102215428B (en) | 2012-12-26 |
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| CN103152536A (en) * | 2013-03-20 | 2013-06-12 | 深圳市知音同创科技有限公司 | Digital TV (Television) terminal capable of displaying advertisement |
| CN104461745A (en) * | 2014-12-23 | 2015-03-25 | 中科创达软件股份有限公司 | Memory optimization method and device |
| KR101799381B1 (en) * | 2015-05-28 | 2017-11-22 | 삼성전자 주식회사 | Display apparatus and control method thereof |
| CN106997265B (en) * | 2016-01-26 | 2020-11-10 | 腾讯科技（深圳）有限公司 | Method and device for setting background excessive color |
| CN107273072B (en) * | 2016-04-07 | 2020-09-04 | 阿里巴巴集团控股有限公司 | Picture display method and device and electronic equipment |
| KR102442625B1 (en) | 2017-07-05 | 2022-09-13 | 삼성전자주식회사 | Image processing apparatus and method for controlling the same |
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| JPH11285023A (en) * | 1998-03-31 | 1999-10-15 | Hitachi Ltd | Transmitting, recording, and reproducing device for image information |
| JPH11339002A (en) * | 1998-05-21 | 1999-12-10 | Seiko Epson Corp | Image processor and information recording medium |
| CN100514992C (en) * | 2007-03-30 | 2009-07-15 | 中国联合网络通信集团有限公司 | Method for processing mobile-terminal frame carboon |
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| CN102215428A (en) | 2011-10-12 |
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