CN105049758A - System and method for character superimposition processing of splicing wall - Google Patents
System and method for character superimposition processing of splicing wall Download PDFInfo
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Abstract
The invention discloses a method character superimposition processing of a splicing wall, and includes: generating a character image having a resolution ratio equal to that of the splicing wall; segmenting the character image according to the row and column number of the splicing wall, so as to obtain a plurality of character subimages; performing denoising on the segmented character subimages, and storing the character subimages after denoising; when a display image sent by a front end signal source is received, segmenting the display image according to the row and column number of the splicing wall, so as to obtain a plurality of display subimages; and performing superimposition processing on the display subimages and the character subimages after denoising, and controlling a display unit to display an image after superimposition processing. The invention also discloses a system for character superimposition processing of the splicing wall. A character superimposition effect is improved, and hardware cost of the system does not need to be additionally increased.
Description
Technical field
The present invention relates to combination display field, particularly relate to character adding treatment system and the method for combination.
Background technology
Video-splicing technology is widely used in the industries such as video monitoring, conference system, smart city and display and demonstration, and combination is by character adding technology, can provide extra additional information, comprise time, place, presence states, captions banner etc.A kind of combination character adding scheme of prior art is as follows:
Input signal is connected to a kind of character superimposing device or carries out character adding with the signal processing apparatus of character adding, then the signal after character adding process is inputed to combination splicing system.Because superposed character information can be exaggerated together along with input signal or reduce in combination splicing system, thus cause character information fuzzy, definition reduces.In addition, because overlaying character information completed before input signal enters combination splicing system, therefore character information will be bound with input signal source, character will be caused to lose if joined screen system display needs to be switched to other signals, and only have each road input signal all to mix character superimposing device for avoiding character to lose, the system cost that will cause like this is multiplied, and each road signal all needs editing character information, and workload also significantly increases accordingly.
Summary of the invention
The main purpose of the embodiment of the present invention is the character adding processing method and the system that provide a kind of combination, is intended to realize solving prior art character adding weak effect, and needs the technical problem of the hardware cost of extra increase system.
For achieving the above object, embodiments provide a kind of character adding processing method of combination, described combination is spliced by multiple display unit; The character adding processing method of described combination comprises:
Produce a character picture equal with the resolution of combination;
The ranks number of described character picture according to combination is split, obtains multiple character subgraph;
Carry out filter to the character subgraph after segmentation to make an uproar process, and filter is made an uproar the character subgraph preservation after process;
When receiving the display image that front end signal source sends, the ranks number of described display image according to combination being split, obtains multiple display subgraph;
The character subgraph after processing of described display subgraph and filter being made an uproar carries out overlap-add procedure, and controls the image after display unit display overlap-add procedure.
Preferably, also comprise before the character picture that described generation one is equal with the resolution of combination:
There is provided character adding parameter, for the character in processing character image; Described character adding parameter comprises palette, character color index value, background color index value, character editing frame color index value.
Preferably, describedly filter carried out to the character subgraph after segmentation to make an uproar process, and also comprise before character subgraph preservation after process that filter is made an uproar:
Obtain the character subgraph after each segmentation successively, and according to the character subgraph of this acquisition of matrix allocation, to make an uproar process to carry out filter.
Preferably, describedly filter is carried out to the character subgraph after segmentation to make an uproar process, and the character subgraph preservation after process of filter being made an uproar comprises:
Freeze the character subgraph of each distribution;
Do filter to the color of image of each subgraph freezed and the point of background colour same color to make an uproar and process;
Preserve the character subgraph after filtering process of making an uproar.
Preferably, the character picture that described generation one is equal with the resolution of combination comprises:
Produce a background image equal with the resolution of combination, and the color of this background image is consistent with the background colour arranged in character adding parameter;
On reasons for its use image, draw the character needing superposition according to described character adding parameter, form described character picture.
In addition, for achieving the above object, present invention also offers a kind of character adding treatment system of combination, described combination is spliced by multiple display unit; The character adding treatment system of described combination comprises:
Character picture generation module, for generation of a character picture equal with the resolution of combination;
Character segmentation module, for being split by the ranks number of described character picture according to combination, obtains multiple character subgraph; Also for when receiving the display image that front end signal source sends, the ranks number of described display image according to combination being split, obtains multiple display subgraph;
Signal processing module, to make an uproar process for carrying out filter to the character subgraph after segmentation, and filter to be made an uproar the character subgraph preservation after process;
Character adding module, carries out overlap-add procedure for the character subgraph after processing of described display subgraph and filter being made an uproar, and controls the image after display unit display overlap-add procedure.
Preferably, the character adding treatment system of described combination also comprises:
Parameter setting module, for providing character adding parameter, for the character in processing character image; Described character adding parameter comprises palette, character color index value, background color index value, character editing frame color index value.
Preferably, the character adding treatment system of described combination also comprises:
Signal distribution module, for obtaining the character subgraph after each segmentation successively, and according to the character subgraph of this acquisition of matrix allocation, to make an uproar process to carry out filter.
Preferably, described signal processing module comprises:
Freezing unit, for freezing the character subgraph of each distribution;
Filter is made an uproar unit, makes an uproar process for doing filter to each color of image of the character subgraph freezed and the point of background colour same color;
Memory cell, for preserving the character subgraph after filtering process of making an uproar.
Preferably, described character picture generation module comprises:
Background image generation unit, for generation of a background image equal with the resolution of combination, and the color of this background image is consistent with the background colour arranged in character adding parameter;
Character drawing unit, for drawing the character needing superposition on reasons for its use image according to described character adding parameter, forms described character picture.
The present invention processes by overlaying character and display being separated, simultaneously by producing the character picture equal with the resolution of combination, and the ranks number of character picture according to combination is split, thus ensure that character source is to the point-to-point display in display device, do not affect by extraneous factors such as any display device or input signal sources, not only increase character adding effect, and do not need the hardware cost additionally increasing system.
In addition, size, the color of the character produced in the present invention can be changed arbitrarily, also achieve the transparent of character background or opaque display simultaneously, and the transparent or opaque display of character editing frame part background.Meanwhile, in character adding process, can any font be selected, no longer need to arrange character library resource, save system cost greatly.
Accompanying drawing explanation
Fig. 1 is the topology example figure of combination one example of the present invention;
Fig. 2 is the topology example figure of another example of combination of the present invention;
Fig. 3 is the structural representation of the character adding treatment system of combination of the present invention;
Fig. 4 is the high-level schematic functional block diagram of character processing apparatus in the character adding treatment system of combination of the present invention;
Fig. 5 is the high-level schematic functional block diagram of combination display control unit in the character adding treatment system of combination of the present invention;
Fig. 6 is the refinement high-level schematic functional block diagram of signal processing module in Fig. 5;
Fig. 7 is the effect exemplary plot after the character adding treatment system of combination of the present invention carries out character adding;
Fig. 8 is another effect exemplary plot after the character adding treatment system of combination of the present invention carries out character adding process;
Fig. 9 is the schematic flow sheet of character adding processing method first embodiment of combination of the present invention;
Figure 10 is the schematic flow sheet of character adding processing method second embodiment of combination of the present invention;
Figure 11 is the refinement schematic flow sheet in the character adding processing method of combination of the present invention, character subgraph after segmentation being filtered to process of making an uproar.
The object of the invention realization, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of character adding treatment system of combination, the character adding treatment system of this combination is used for processing character, to be superimposed on display image.The character adding treatment system of this combination is based on existing splicing system, when not increasing any additional hardware cost, not only achieve character, or even the superposition of super large character, and the character of any font can be selected to superpose, no longer need jumbo character library.
Above-mentioned combination is the combination that multiple display unit is spliced, and each display unit is independent setting, and the resolution of each display unit can be consistent, such as 1920*1080.Certainly, the resolution of each display unit also can be inconsistent.As shown in Figure 1, this combination is the matrix display panel being formed three rows and four columns by 12 display units, and the display resolution of each display unit is 1920*1080.When combination splicing system receives the video image that signal source provides, this video image will be divided into the display subgraph of corresponding number (namely 12) according to the ranks number of combination, and export corresponding display subgraph show to combination according to matrix allocation.Particularly: combination as shown in Figure 1, each display unit distributes corresponding numbering, such as, be compiled as display unit 1, display unit 2 from left to right, from top to bottom ... display unit 12.And the position of each display unit can be represented by ranks value, such as (n, m), wherein n represents the row at this display unit place, and m represents the row at this display unit place.That is, the positional representation of display unit 4 is (Isosorbide-5-Nitrae).Therefore, after being multiple display subgraph to Video Image Segmentation, then according to matrix, each subgraph being dispensed to combination and showing.And each display unit includes corresponding signal processing module, after character adding process is carried out to the display received, and the signal after Graphics Processing.As shown in Figure 2, this combination is formed by 2 display units, and wherein, the display resolution of first display unit is 1920*1080, and the display resolution of the second display unit is 3000*1080.When combination splicing system receives the video image that signal source provides, this video image will be divided into the display subgraph of corresponding number (namely 2) according to the ranks number of combination, and export corresponding display subgraph show to combination according to matrix allocation.
Based on existing screen splicing system, a kind of character adding treatment system of combination is proposed, to realize the superposition of super large character.As shown in Figure 3, the character adding treatment system of this combination comprises character processing apparatus 100 and display control unit 200, wherein character processing apparatus 100 provides the character signal equal with combination resolution, and dividing processing is carried out to the character signal provided, form N block character signal, then according to matrix, each block character signal is distributed to display control unit 200, show with the display unit controlling combination.Meanwhile, display control unit 200 carries out filter to the character signal after segmentation and to make an uproar process, and the character signal after processing of filter being made an uproar stores.When the display that screen splicing system acceptance sends to front end signal source, this display is divided into N block, and by N block display according to matrix allocation to control board corresponding to display unit each in display control unit 200, the character signal of storage and display are carried out overlap-add procedure by the control board that this display unit is corresponding, and control the signal after display unit display superposition.
Wherein, as shown in Figure 4, above-mentioned character processing apparatus 100 comprises:
Character picture generation module 110, for generation of a character picture equal with combination resolution;
Character segmentation module 120, for being divided into multiple subgraph by the character picture of generation according to the ranks number of combination;
Signal distribution module 130, for the subgraph after segmentation is pressed matrix allocation to corresponding display unit, and exports the subgraph after distributing successively.
Before generation character picture, character adding relevant parameter need be provided: palette, character color index value, background color index value, character editing frame color index value.Wherein palette is used for providing character color, to realize any replacing of character color.Character color index value is for representing the color of the character that needs superpose.Background color index value is for representing the background color of the character that needs superpose.Background color represents the color needing transparent processing to remove, namely identical or very close with background color color, can by as transparent processing in final character adding process.This character adding relevant parameter can be splicing system default setting, and also can arrange flexibly according to the demand of user, namely this character relevant parameter can be revised.
Above-mentioned character picture generation module 110 produces a character picture the same with the resolution of combination.Combination such as shown in Fig. 1, the resolution of the character picture that character picture generation module 110 produces is 1920*4=7680,1080*3=3240, i.e. 7680*3240.Character in this character picture will meet above-mentioned provided character adding parameter, and such as arranging character boundary is 5000*3000, and character font is " new Song typeface " etc.This character color is set to blueness.
In one embodiment, above-mentioned character picture generation module 110 first can produce a background image equal with the resolution of combination, and the color of this background image is consistent with the background colour arranged in character adding parameter.Then on this reasons for its use image, draw the character needing superposition, form character picture.The character of this drafting is by above-mentioned provided character adding parameter.
For the combination of Fig. 1, the character picture of generation is divided into multiple subgraph according to the ranks number of combination by above-mentioned Character segmentation module 120.Be resolution according to combination due to character picture and generate, in the resolution of the subgraph therefore after current segmentation and combination, the resolution of each screen unit is completely the same.Therefore, when carrying out character adding by the present invention, point-to-point completely display can be accomplished, not by the impact of the extraneous factor such as any display device or input signal source.Such as, the character picture of above-mentioned generation is divided into 12 subgraphs, and the resolution of each subgraph is 1920*1080.And, this Character segmentation module 130 also by segmentation after subgraph by row major, from left to right, be compiled as the 1st sub-picture from top to bottom to the 12nd sub-picture.
Subgraph after segmentation shows to display unit corresponding in combination by matrix allocation by above-mentioned signal distribution module 130.Suppose the subgraph after splitting from left to right, be compiled as the 1st sub-picture from top to bottom to the 12nd sub-picture, combination comprises display unit 1, display unit 2 ... display unit 12.Therefore, the 1st sub-picture after segmentation is dispensed to display unit 1 and carries out display display by signal distribution module 130, and namely the 1st sub-picture exports the processing module of display unit 1 correspondence to; The 2nd sub-picture after segmentation is dispensed to display unit 2 and shows by signal distribution module 130, and namely the 2nd sub-picture exports the processing module of display unit 2 correspondence to; By that analogy, the 12nd sub-picture after segmentation is dispensed to display unit 12 and shows by signal distribution module 130, and namely the 12nd sub-picture exports the processing module of display unit 12 correspondence to.
Further, above-mentioned character processing apparatus 100 also comprises:
Control module 140 is for generation of spread signal, consistent with the resolution of display unit with output resolution with the input of control signal distribution module 130.
By the spread signal that this control module 140 produces, this signal distribution module 130 each acquisition subgraph from Character segmentation module 120 can be made, and be dispensed to corresponding display unit successively according to the subgraph that this gets by matrix and show, and export this subgraph distributed.Because the signal resolution controlling these input and output is consistent with the resolution of the corresponding display unit exported of character subgraph, therefore can ensure that each display unit is do not amplify the single window tiling display also do not reduced, namely complete point-to-point display.
Above-mentioned signal distribution module 130 exports with the form of spread signal the subgraph editted to combination display control unit 200 successively.As shown in Figure 4, combination display control unit 200 comprises multiple control unit, for controlling the Signal aspects of display unit.And each control unit comprises signal processing module 210 and character adding module 220, and each display unit independently arranges corresponding signal processing module and character adding module.
As shown in Figure 6, above-mentioned signal processing module 210 comprises:
Freezing unit 211, during for often receiving a subgraph, freezes this subgraph;
Filter is made an uproar processing unit 212, makes an uproar process for doing filter to each color of image of the character subgraph freezed and the point of background colour same color;
Memory cell 213, for preserving the character subgraph after filtering process of making an uproar.
Freezing unit 231 often receives a character subgraph, all this character subgraph will be freezed.The subgraph received by this is buffered in internal memory, and controls the display that display unit keeps the view data in this internal memory, terminates until receive thaw order or character adding programming process.
The filter background colour required in the color of image of subgraph that this freezes by processing unit 212 and character adding demand of making an uproar carries out pointwise contrast, makes an uproar and processes to do filter to the color of image of subgraph and the point of background colour same color, be i.e. transparent processing.Therefore, point identical with the font color required in character adding demand or font edit box color in this subgraph will retain, and then preserve the display position of point in screen unit of each reservation.The rest may be inferred, freezes and carry out filter to make an uproar process to each subgraph.All carrying out filter at all subgraphs makes an uproar after process terminates, and freezing unit 231 sends instruction of thawing again, with each subgraph that thaws.
Further, above-mentioned signal processing module 210 also comprises:
Font color changes unit 214, for receiving the color index value of palette, and revises the character color of the word image after thawing according to color index value.By the setting of palette, make the character superposed can change color arbitrarily, thus realize random color display.
Because the character picture after this process will be kept in signal processing module corresponding to each display unit, waiting receive front end signal after, the character picture of preservation is superposed with front end signal, and control combination display superposition after signal.Therefore, this character picture is not by the impact of the extraneous factor such as any display device or input signal source.
Above-mentioned character adding module 220, by the lattice information of character picture after process and the synthesis of front end display, forms the display after overlap-add procedure, then the display after overlap-add procedure is sent to display unit and shows.
In addition, by character adding parameter, can multiple color be provided for the character that will superpose to select, but also the transparent of character background or opaque display can be realized, also achieve the transparent or opaque display of character editing frame part background simultaneously.As shown in Figure 7 with shown in Fig. 8.Wherein, Fig. 7 display is the super large character of non-tape character edit box and superposing of front end signal.What Fig. 8 showed is with the super large character of character editing frame and superposing of front end signal, and is opaque display by the background of this character editing frame part, and be understandable that, the background that can arrange this character editing part is Transparence Display.
Combination character adding treatment system of the present invention, relative to the splicing system of prior art, has the following advantages:
1. character boundary is changed arbitrarily, keeps character source to the point-to-point display in display device, not by the impact of the extraneous factor such as any display device or input signal source;
2. character color provides any number of color;
3. the transparent of character background or opaque display are provided;
4. provide the transparent or opaque display of character editing frame part background;
5., without the need to additionally taking any resource, save system cost greatly;
6. character adding can select any font, does not limit by resource.
Accordingly, the invention provides a kind of combination character adding processing method.As shown in Figure 9, this combination character adding processing method comprises the following steps:
Step S110, produce a character picture equal with the resolution of combination;
Combination as shown in Figure 1, the resolution of the character picture that character picture generation module 110 produces is 1920*4=7680,1080*3=3240, i.e. 7680*3240.Character in this character picture will meet above-mentioned provided character adding parameter, and such as arranging character boundary is 5000*3000, and character font is " new Song typeface " etc.This character color is set to blueness.Particularly, first can produce a background image equal with the resolution of combination, the color of this background image is consistent with the background colour arranged in character adding parameter.Then on this reasons for its use image, draw the character needing superposition, form character picture.The character of this drafting is by above-mentioned provided character adding parameter.
Step S120, the ranks number of described character picture according to combination to be split, obtain multiple character subgraph;
The character picture of generation is divided into multiple subgraph according to the ranks number of combination.Be resolution according to combination due to character picture and generate, in the resolution of the character subgraph therefore split according to the ranks number of combination and combination, the resolution of each screen unit is completely the same.Therefore, when carrying out character adding by the present invention, point-to-point completely display can be accomplished, not by the impact of the extraneous factor such as any display device or input signal source.Such as, for the combination shown in Fig. 1, the character picture of above-mentioned generation is divided into 12 subgraphs, and the resolution of each subgraph is 1920*1080.And, this Character segmentation module 130 also by segmentation after subgraph by row major, from left to right, be compiled as the 1st secondary character subgraph from top to bottom to the 12nd secondary character subgraph.
Step S130, filter is carried out to the character subgraph after segmentation to make an uproar process, and filter is made an uproar the character subgraph preservation after process;
This filter make an uproar process be by segmentation after the color of character subgraph and the background colour of display carry out pointwise contrast, the point of the background colour same color with display is carried out transparent processing, thus reserved character or font edit box part.
Step S140, when receiving the display image that front end signal source sends, described display image to be split according to the resolution of display unit, obtaining multiple display subgraph;
This dividing method can refer to the dividing method of character picture above, suppose that the resolution of this display image is 7680*3240, and the resolution of each display unit is 1920*1080, be then 12 display subgraphs by this display Iamge Segmentation, and the 1st secondary display subgraph is compiled as to the 12nd secondary display subgraph to this display subgraph.If the resolution of the display resolution of image and combination is inconsistent, then can carry out convergent-divergent process to this display image.
Step S150, described display subgraph and the filter character subgraph after process of making an uproar are carried out overlap-add procedure, and control display unit show overlap-add procedure after image.
The character subgraph after processing of display subgraph and filter being made an uproar carries out overlap-add procedure.Such as, the 1st secondary character subgraph is shown subgraph with the 1st pair and superposes, because the 1st secondary character subgraph is by transparent processing, the effect therefore after superposition is exactly that Charactes Display is on display subgraph.By that analogy, until all display subgraphs and corresponding character subgraph all complete overlap-add procedure.Now, the image be presented in combination is exactly a complete character adding image.
Further, also comprise before above-mentioned steps S110:
Step S100, provide character adding parameter, for the character in processing character image; Described character adding parameter comprises palette, character color index value, background color index value, character editing frame color index value.
Before generation character picture, character adding relevant parameter need be provided: palette, character color index value, background color index value, character editing frame color index value.Wherein palette is used for providing character color, to realize any replacing of character color.Character color index value is for representing the color of the character that needs superpose.Background color index value is for representing the background color of the character that needs superpose.Background color represents the color needing transparent processing to remove, namely identical or very close with background color color, can by as transparent processing in final character adding process.This character adding relevant parameter can be splicing system default setting, and also can arrange flexibly according to the demand of user, namely this character relevant parameter can be revised.
By the setting of palette, make the character superposed can change color arbitrarily, thus realize random color display.Because the character picture after this process will be kept in signal processing module corresponding to each display unit, waiting receive front end signal after, the character picture of preservation is superposed with front end signal, and control combination display superposition after signal.Therefore, this character picture is not by the impact of the extraneous factor such as any display device or input signal source.
In addition, by character adding parameter, can multiple color be provided for the character that will superpose to select, but also the transparent of character background or opaque display can be realized, also achieve the transparent or opaque display of character editing frame part background simultaneously.As shown in Figure 7 with shown in Fig. 8.Wherein, Fig. 7 display is the super large character of non-tape character edit box and superposing of front end signal.What Fig. 8 showed is with the super large character of character editing frame and superposing of front end signal, and is opaque display by the background of this character editing frame part, and be understandable that, the background that can arrange this character editing part is Transparence Display.
Further, as shown in Figure 10, also comprise before above-mentioned steps S130:
Step S160, obtain the character subgraph after each segmentation successively, and according to the character subgraph of this acquisition of matrix allocation, to make an uproar process to carry out filter.
Subgraph after segmentation is shown to display unit corresponding in combination by matrix allocation.As shown in Figure 4, suppose the subgraph after splitting from left to right, be compiled as the 1st sub-picture from top to bottom to the 12nd sub-picture, combination comprises display unit 1, display unit 2 ... display unit 12.Therefore, the 1st sub-picture after segmentation is dispensed to display unit 1 and carries out display display by signal distribution module 130, and namely the 1st sub-picture exports the processing module of display unit 1 correspondence to; The 2nd sub-picture after segmentation is dispensed to display unit 2 and shows by signal distribution module 130, and namely the 2nd sub-picture exports the processing module of display unit 2 correspondence to; By that analogy, the 12nd sub-picture after segmentation is dispensed to display unit 12 and shows by signal distribution module 130, and namely the 12nd sub-picture exports the processing module of display unit 12 correspondence to.
Be understandable that, the present embodiment can also by producing spread signal, can make to obtain a character subgraph at every turn, and be dispensed to corresponding display unit successively according to the character subgraph that this gets by matrix and show, and export this character subgraph distributed.Because the signal resolution controlling these input and output is consistent with the resolution of the corresponding display unit exported of character subgraph, therefore can ensure that each display unit is do not amplify the single window tiling display also do not reduced, namely complete point-to-point display.
Further, as shown in figure 11, above-mentioned steps S130 comprises:
Step S131, freeze the character subgraph of each distribution;
Step S132, the color of image of each subgraph freezed and the point of background colour same color done to filter and make an uproar and process;
The character subgraph after process of making an uproar is filtered in step S133, preservation.
Often receive a character subgraph, all this character subgraph will be freezed.The subgraph received by this is buffered in internal memory, and controls the display that display unit keeps the view data in this internal memory, terminates until receive thaw order or character adding programming process.
The background colour required in the color of image of the subgraph this freezed and character adding demand carries out pointwise contrast, makes an uproar and processes to do filter to the color of image of subgraph and the point of background colour same color, be i.e. transparent processing.Therefore, point identical with the font color required in character adding demand or font edit box color in this subgraph will retain, and then preserve the display position of point in screen unit of each reservation.The rest may be inferred, freezes and carry out filter to make an uproar process to each subgraph.All carrying out filter at all subgraphs makes an uproar after process terminates, then sends instruction of thawing, with each subgraph that thaws.
Combination character adding treatment technology of the present invention, relative to the splicing system of prior art, has the following advantages:
1. character boundary is changed arbitrarily, keeps character source to the point-to-point display in display device, not by the impact of the extraneous factor such as any display device or input signal source;
2. character color provides any number of color;
3. the transparent of character background or opaque display are provided;
4. provide the transparent or opaque display of character editing frame part background;
5., without the need to additionally taking any resource, save system cost greatly;
6. character adding can select any font, does not limit by resource.
The foregoing is only the preferred embodiments of the present invention; not thereby its scope of the claims is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a character adding processing method for combination, is characterized in that, described combination is spliced by multiple display unit; The character adding processing method of described combination comprises:
Produce a character picture equal with the resolution of combination;
The ranks number of described character picture according to combination is split, obtains multiple character subgraph;
Carry out filter to the character subgraph after segmentation to make an uproar process, and filter is made an uproar the character subgraph preservation after process;
When receiving the display image that front end signal source sends, the ranks number of described display image according to combination being split, obtains multiple display subgraph;
The character subgraph after processing of described display subgraph and filter being made an uproar carries out overlap-add procedure, and controls the image after display unit display overlap-add procedure.
2. the character adding processing method of combination as claimed in claim 1, is characterized in that, also comprise before the character picture that described generation one is equal with the resolution of combination:
There is provided character adding parameter, for the character in processing character image; Described character adding parameter comprises palette, character color index value, background color index value, character editing frame color index value.
3. the character adding processing method of combination as claimed in claim 1, is characterized in that, describedly carries out filter to the character subgraph after segmentation and to make an uproar process, and also comprises before character subgraph preservation after process of filter being made an uproar:
Obtain the character subgraph after each segmentation successively, and according to the character subgraph of this acquisition of matrix allocation, to make an uproar process to carry out filter.
4. the character adding processing method of combination as claimed in claim 3, is characterized in that, describedly carries out filter to the character subgraph after segmentation and to make an uproar process, and the character subgraph preservation after process of filter being made an uproar comprises:
Freeze the character subgraph of each distribution;
Do filter to the color of image of each subgraph freezed and the point of background colour same color to make an uproar and process;
Preserve the character subgraph after filtering process of making an uproar.
5. the character adding processing method of combination as claimed in claim 2, is characterized in that, described generation one character picture equal with the resolution of combination comprises:
Produce a background image equal with the resolution of combination, and the color of this background image is consistent with the background colour arranged in character adding parameter;
On reasons for its use image, draw the character needing superposition according to described character adding parameter, form described character picture.
6. a character adding treatment system for combination, is characterized in that, described combination is spliced by multiple display unit; The character adding treatment system of described combination comprises:
Character picture generation module, for generation of a character picture equal with the resolution of combination;
Character segmentation module, for being split by the ranks number of described character picture according to combination, obtains multiple character subgraph; Also for when receiving the display image that front end signal source sends, the ranks number of described display image according to combination being split, obtains multiple display subgraph;
Signal processing module, to make an uproar process for carrying out filter to the character subgraph after segmentation, and filter to be made an uproar the character subgraph preservation after process;
Character adding module, carries out overlap-add procedure for the character subgraph after processing of described display subgraph and filter being made an uproar, and controls the image after display unit display overlap-add procedure.
7. the character adding treatment system of combination as claimed in claim 6, it is characterized in that, the character adding treatment system of described combination also comprises:
Parameter setting module, for providing character adding parameter, for the character in processing character image; Described character adding parameter comprises palette, character color index value, background color index value, character editing frame color index value.
8. the character adding treatment system of combination as claimed in claim 6, it is characterized in that, the character adding treatment system of described combination also comprises:
Signal distribution module, for obtaining the character subgraph after each segmentation successively, and according to the character subgraph of this acquisition of matrix allocation, to make an uproar process to carry out filter.
9. the character adding treatment system of combination as claimed in claim 8, it is characterized in that, described signal processing module comprises:
Freezing unit, for freezing the character subgraph of each distribution;
Filter is made an uproar unit, makes an uproar process for doing filter to each color of image of the character subgraph freezed and the point of background colour same color;
Memory cell, for preserving the character subgraph after filtering process of making an uproar.
10. the character adding treatment system of combination as claimed in claim 7, it is characterized in that, described character picture generation module comprises:
Background image generation unit, for generation of a background image equal with the resolution of combination, and the color of this background image is consistent with the background colour arranged in character adding parameter;
Character drawing unit, for drawing the character needing superposition on reasons for its use image according to described character adding parameter, forms described character picture.
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