CN101616268A - A kind of method of utilizing texture coordinate to generate shadow captions - Google Patents
A kind of method of utilizing texture coordinate to generate shadow captions Download PDFInfo
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- CN101616268A CN101616268A CN200810115767A CN200810115767A CN101616268A CN 101616268 A CN101616268 A CN 101616268A CN 200810115767 A CN200810115767 A CN 200810115767A CN 200810115767 A CN200810115767 A CN 200810115767A CN 101616268 A CN101616268 A CN 101616268A
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Abstract
The embodiment of the invention discloses a kind of method of utilizing texture coordinate to generate shadow captions, may further comprise the steps: caption character is placed into respectively on the different blanks with the mode of caption shadow by the unique correspondence of texture coordinate; The blank that the blank and the described caption shadow of described caption character placement are placed superposes, thereby generates shadow captions.After the blank that described blank that caption character is placed and caption shadow are placed superposes, also comprise: the motion of the blank of placing by described caption character and the motion of the blank that described caption shadow is placed, realize the stunt of shadow captions.The present invention has adopted the method for utilizing texture coordinate to generate shadow captions, has reached quick generation shadow captions, the effect that shadow captions is various informative.
Description
Technical field
The present invention relates to multimedia technology field, particularly relate to a kind of method of utilizing texture coordinate to generate shadow captions.
Background technology
Video caption commonly used at present generates in the software, and the user can add shade for the literal in the captions, and the caption character behind the interpolation shade has produced a kind of effect of floating, and makes the third dimension of picture, stereovision strengthen.Simultaneously, the interpolation of shade makes that also the lines of caption character are more outstanding, helps captions more observably are presented in spectators at the moment.
In the caption editing device of Premiere, for the design of shade provides special the tool option, the user can also set shadow positions by the service area in the lower left corner in the editing machine as required for captions generate the shades of colour shade.Shade among the Premiere has three kinds of patterns: individual layer, solid, soft.The individual layer shade itself is the graph copying to former caption character, and keeps a definite position relation by position change and former caption character.The shade svelteness is convenient to user's operation.Solid shade then is that literal is linked to each other with straight line with the corresponding points of shade, thereby makes shade and literal be linked to be an integral body.Whole dash area is imbued with texture, gives solid strong sensation.Soft shadows is on the basis of individual layer shade, and dash area has been carried out soft processing, has increased dim sense.Be applicable to warm soft occasion.
Yet, generate in the software at existing video caption, need in same figure, edit caption character and caption shadow, editing process is consuming time longer, and hatching effect is more single.
Summary of the invention
The invention provides a kind of method of utilizing texture coordinate to generate shadow captions, it is consuming time longer to have solved in the prior art shadow captions editing process, and the more single problem of hatching effect.
For achieving the above object, the embodiment of the invention proposes a kind of method of utilizing texture coordinate to generate shadow captions, may further comprise the steps:
Caption character is placed into respectively on the different blanks with the mode of caption shadow by the unique correspondence of texture coordinate;
The blank that the blank and the described caption shadow of described caption character placement are placed superposes, thereby generates shadow captions.
After the described blank that the blank and the caption shadow of caption character placement are placed superposes, also comprise:
The motion of the blank of placing by described caption character and the motion of the blank that described caption shadow is placed realize the stunt of shadow captions.
Technical scheme of the present invention has the following advantages, because adopted the method for utilizing texture coordinate to generate shadow captions, thereby, reached quick generation shadow captions, the effect that shadow captions is various informative.
Description of drawings
Fig. 1 generates the method flow diagram of shadow captions for utilizing texture coordinate among the present invention;
Fig. 2 generates a kind of specific implementation flow chart of shadow captions for utilizing texture coordinate among the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail: as shown in Figure 1, generate the method flow diagram of shadow captions, may further comprise the steps for utilizing texture coordinate among the present invention:
Texture coordinate is the pinup picture coordinate again, is the user when the structure blank, adds the information of giving blank.In OPENGL and D3D, (U V) is provided with the texture coordinate of a point, and U is that transverse axis, V are the longitudinal axis to use two 0 to 1 floating point values.The upper left corner of texture is (0,0), and the lower right corner is (1,1).Caption character and caption shadow are placed on the blank that has generated after generating figure.Caption shadow derives from the processed to caption character, and blank is a kind of editor's element in the caption editing software, does not have the plane rectangle of thickness to represent with one in the editor space.Each blank size under initial condition is identical, and the position may be different, and the position of blank is represented by the space coordinates at blank center.After caption character figure and caption shadow figure are placed on the blank, become the texture on the blank, corresponding one by one by texture coordinate with separately blank.
Caption character is with after caption shadow is placed on the different blanks respectively, and each blank may be positioned at the diverse location of space coordinates.When each blank center was placed on the same point of space coordinates, each blank just was superimposed.After the stack, though literal piece and shaded block also on different blanks, because the existence of Alpha passage, can be formed the effect of the shade of word, the result of stack is the generation effect of shadow captions.The Alpha passage is one 8 a gray scale passage, and this passage comes transparence information in the document image with 256 grades of gray scales, defines transparent, opaque and translucent area, and wherein, black expression full impregnated is bright, represents opaquely in vain, and the ash expression is translucent.
As shown in Figure 2, generate a kind of specific implementation flow chart of shadow captions, may further comprise the steps for utilizing texture coordinate among the present invention:
Step 201 is placed into caption character respectively on the different blanks with the mode of caption shadow by the unique correspondence of texture coordinate.
Caption character and caption shadow are placed on the blank that has generated after generating figure.Each blank size under initial condition is identical, and the position may be different.After caption character figure and caption shadow figure are placed on the blank, become the texture on the blank, corresponding one by one by texture coordinate with separately blank.
Step 202, the blank that the blank and the caption shadow of caption character placement are placed superposes.
Caption character is with after caption shadow is placed on the different blanks respectively, and each blank is superimposed, and realizes the mixed effect of caption character and caption shadow.
" stack " speech in the embodiment of the invention can refer to each blank by the identical position difference that becomes in position, and it is identical to refer to that also each blank becomes the position by the position difference.The generation effect of shadow captions realizes changing accordingly according to above-mentioned two kinds of situations.Each blank becomes the position not simultaneously by the position is identical, and the generation effect of shadow captions becomes dispersion by concentrating; Each blank becomes the position when identical by the position difference, and the generation effect of shadow captions is concentrated by disperseing to become.
Step 203, the motion of the blank of placing by caption character and the motion of the blank that caption shadow is placed realize the stunt of shadow captions.
After the blank stack that the motion of the blank that caption character is placed and caption shadow are placed, can carry out motion separately, as stretching, distortion etc.Caption character on the blank and caption shadow are followed blank and are moved together, the shadow captions that realization has various special-effects, and as effects such as phantom, different hatching effects depends on the quantity and the motion mode under the support of stunt module of shade blank.
Technical scheme of the present invention has the following advantages, because adopted the method for utilizing texture coordinate to generate shadow captions, thereby, reached quick generation shadow captions, the effect that shadow captions is various informative.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (2)
1, a kind of method of utilizing texture coordinate to generate shadow captions is characterized in that, may further comprise the steps:
Caption character is placed into respectively on the different blanks with the mode of caption shadow by the unique correspondence of texture coordinate;
The blank that the blank and the described caption shadow of described caption character placement are placed superposes, thereby generates shadow captions.
2, utilize texture coordinate to generate the method for shadow captions according to claim 1, it is characterized in that, after the described blank that the blank and the caption shadow of caption character placement are placed superposes, also comprise:
The motion of the blank of placing by described caption character and the motion of the blank that described caption shadow is placed realize the stunt of shadow captions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810115767A CN101616268A (en) | 2008-06-27 | 2008-06-27 | A kind of method of utilizing texture coordinate to generate shadow captions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810115767A CN101616268A (en) | 2008-06-27 | 2008-06-27 | A kind of method of utilizing texture coordinate to generate shadow captions |
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| CN101616268A true CN101616268A (en) | 2009-12-30 |
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| CN200810115767A Pending CN101616268A (en) | 2008-06-27 | 2008-06-27 | A kind of method of utilizing texture coordinate to generate shadow captions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739976A (en) * | 2011-05-17 | 2012-10-17 | 新奥特（北京）视频技术有限公司 | Method and system for realizing dynamic two-dimensional subtitle of shadow |
| CN102800118A (en) * | 2012-05-31 | 2012-11-28 | 新奥特（北京）视频技术有限公司 | Method for realizing special effects of material boards |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173782A (en) * | 1996-06-24 | 1998-02-18 | 三星电子株式会社 | Combined video (appliance) device for education using captioning |
| WO2004047430A1 (en) * | 2002-11-15 | 2004-06-03 | Thomson Licensing S.A. | Method and apparatus for composition of subtitles |
-
2008
- 2008-06-27 CN CN200810115767A patent/CN101616268A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173782A (en) * | 1996-06-24 | 1998-02-18 | 三星电子株式会社 | Combined video (appliance) device for education using captioning |
| WO2004047430A1 (en) * | 2002-11-15 | 2004-06-03 | Thomson Licensing S.A. | Method and apparatus for composition of subtitles |
Non-Patent Citations (1)
| Title |
|---|
| CHONGCHONG: "Premiere跟我学（字幕篇）", 《数字世界》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739976A (en) * | 2011-05-17 | 2012-10-17 | 新奥特（北京）视频技术有限公司 | Method and system for realizing dynamic two-dimensional subtitle of shadow |
| CN102739976B (en) * | 2011-05-17 | 2017-06-13 | 新奥特（北京）视频技术有限公司 | A kind of method and system of the realization of the dynamic two-dimensional caption of shade |
| CN102800118A (en) * | 2012-05-31 | 2012-11-28 | 新奥特（北京）视频技术有限公司 | Method for realizing special effects of material boards |
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Application publication date: 20091230 |