CN1397915A - Deivce and method for processing covered picture to become transparent one - Google Patents
Deivce and method for processing covered picture to become transparent one Download PDFInfo
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- CN1397915A CN1397915A CN 02127044 CN02127044A CN1397915A CN 1397915 A CN1397915 A CN 1397915A CN 02127044 CN02127044 CN 02127044 CN 02127044 A CN02127044 A CN 02127044A CN 1397915 A CN1397915 A CN 1397915A
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Abstract
A device and method for processing the covered picture to make it transparent is disclosed, which can be used for a digital image processor whose memory contains the displayed pixed data of a picture and the pixel data of several covered pictures, and a display. The said device is composed of a screen controller, several covered picture processing engines, a transparency processing engine and a D/A converter. The said method includes reading the displayed pixel data of the picture and the data about the first pixel point and the secnod group of pixel point of covered pictures, transparency processing to obtain the third pixel point data, and display it in the covered region of picture.
Description
Technical field
The present invention relates to a kind of covering picture transparent processing apparatus and method, finger is applied to the covering picture transparent processing apparatus and method on a digital image processing device and the display especially.
Background technology
See also Fig. 1, it is that configuration diagram is handled in signal of video signal output commonly used in the present computer system, in internal memory 10, planning has a picture display buffer memory 101 (On Screen frame buffer) to deposit a pixel data, and read and deliver to a digital analog converter (Digital-to-Analog Converter in regular turn by a screen controller 11 (CRTC), be called for short DAC) 12 change after, just export a display 15 to and carry out picture and show.In addition, also include one in the framework and cover a covering of other planning picture buffering storer 102 (Overlay frame buffer) in picture processing engine (Overlay engine) 13 and the internal memory 10, it is to be used to reach the function that the covering picture shows.Wherein this covering picture processing engine 13 reads pixel data and pixel data of cooperating screen controller 11 to be exported from cover picture buffering storer 102 covers processing, and then export this digital analog converter (Digital-to-Analog Converter to, abbreviation DAC) 12 changes, and the simulating signal that can provide display 15 to show is provided.
Below cooperate covering picture shown in Figure 2 to show that synoptic diagram describes again, wherein stored pixel data is the raw frames 20 of the bottom on the display screen in the picture display buffer memory 101 (On Screen frame buffer), and covering picture processing engine 13 reads pixel data from cover picture buffering storer 102, and then to after covering original picture pixel data in the picture scope and replacing, export this digital analog converter (Digital-to-Analog Converter again to, abbreviation DAC) 12 changes, and the simulating signal that can provide graphoscope 13 to show is provided.Thus, just can see on a specific region on the display screen that one covers picture 21, and the image of raw frames 20 will be covered fully and can't be seen by the user in this specific region, cause the user to desire to look for the puzzlement that is covered when covering image (for example image of desktop shortcuts), how improving this common deletion, is fundamental purpose of the present invention.
Summary of the invention
The objective of the invention is to a kind of covering picture transparent processing treating apparatus and method, be applied on a digital image processing device and the display, can demonstrate pellucidly in the overlapping region and originally be capped picture and be covered in raw frames down and covering picture.
The object of the present invention is achieved like this:
The invention discloses a kind of covering picture transparent processing method, be applied on a digital image processing device and the display, deposited unicursal face display pixel data and covering picture pixel data in the internal memory in this digital image processing device, this method comprises the following steps: to read in respectively one first pixel number certificate and the one second pixel number certificate that adheres to separately in these stroke face display pixel data and this covering picture pixel data; According to a transparence value this first pixel number is obtained one the 3rd pixel number certificate according to carrying out a transparent processing with second pixel number certificate; And the 3rd pixel number one covered picture area according to the show on this display.
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second picture element point chromatic value C2 and one the 3rd picture element point chromatic value C3 respectively, and this transparence value A be one greater than 0 less than 1 numerical value, and through the color-values C3=of resulting the 3rd pixel of this transparent processing (1-A) * C1+A*C2.
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein this transparence value is included in this first pixel number certificate.
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein this transparence value is deposited in this internal memory.
The present invention also discloses a kind of covering picture transparent processing method, be applied on a digital image processing device and the display, deposited unicursal face display pixel data and several covering picture pixel data in the internal memory in this digital image processing device, this method comprises the following steps: to read in respectively one first pixel number certificate and the one second group of pixel number certificate that adheres to separately in these stroke face display pixel data and these covering picture pixel data; According to one group of transparence value this first pixel number is obtained one the 3rd pixel number certificate according to carrying out a transparent processing with second group of pixel number certificate; And with the 3rd pixel number according to the show these on this display cover in the overlapping zone of picture.
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second group of picture element point chromatic value C21, C22 and one the 3rd picture element point chromatic value C3 respectively, and this group transparence value A1, A2 all be one greater than 0 less than 1 numerical value, and through the color-values C3=A2*[A1*C21+ of resulting the 3rd pixel of this transparent processing (1-A1) * C22]+(1-A2) C1
Or (1-A2) * C22+A2*C1 of C3=A1*C21+ (1-A1).
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein the A2 in this group transparence value is included in this first pixel number certificate, and A1 then independently deposits in this internal memory.
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein this group transparence value is deposited in this internal memory.
The invention also discloses a kind of covering picture transparent processing device, be applied on a digital image processing device and the display, unicursal face display pixel data and covering picture pixel data have been deposited in the internal memory in this digital image processing device, this device comprises: a screen controller, signal is connected in this internal memory, read one first pixel number that belongs in these stroke face display pixel data according to after send; One covers the picture processing engine, and signal is connected in this internal memory, read one second pixel number that belongs in these covering picture pixel data according to after send; One transparent processing engine, signal are connected in this screen controller and this covering picture processing engine, and it obtains one three pixel number certificate to this first pixel number that is received according to carrying out a transparent processing with second pixel number certificate according to a transparence value; And a digital analog converter, signal is connected in this transparent processing engine, exports the 3rd pixel number to this display according to after converting a simulating signal to, and then drives this display and cover on the picture area in one and show.
According to above-mentioned conception, covering picture transparent processing device of the present invention, wherein this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second picture element point chromatic value C2 and one the 3rd picture element point chromatic value C3 respectively, and this transparence value A be one greater than 0 less than 1 numerical value, and this transparent processing engine carries out color-values C3=(1-A) the * C1+A*C2 of resulting the 3rd pixel of this transparent processing.
According to above-mentioned conception, covering picture transparent processing device of the present invention, wherein this transparence value is obtained from this first pixel number certificate by this transparent processing engine.
According to above-mentioned conception, covering picture transparent processing method of the present invention, wherein this transparence value is obtained from this internal memory by this transparent processing engine.
The present invention also discloses a kind of covering picture transparent processing device, be applied on a digital image processing device and the display, unicursal face display pixel data and several covering picture pixel data have been deposited in the internal memory in this digital image processing device, this device comprises: a screen controller, signal is connected in this internal memory, read one first pixel number that belongs in these stroke face display pixel data according to after send; Several cover picture processing engine, and signal is connected in this internal memory, read respectively one second group of pixel number that the pixel that belongs in these covering picture pixel data forms according to after send; One transparent processing engine, signal is connected in this screen controller and these cover the picture processing engine, and it obtains one three pixel number certificate to this first pixel number that is received according to carrying out a transparent processing with second group of pixel number certificate according to one group of transparence value; And a digital analog converter, signal is connected in this transparent processing engine, exports the 3rd pixel number to this display according to after converting a simulating signal to, and then drives this display and cover in the overlapping zone of pictures in these and show.
According to above-mentioned conception, covering picture transparent processing device of the present invention, this first pixel number certificate wherein, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1 respectively, one second group of picture element point chromatic value C21, C22 and one the 3rd picture element point chromatic value C3, and should organize transparence value A1, A2 all be one greater than 0 less than 1 numerical value, and this transparent processing engine carries out color-values C3=A2*[A1*C21+ (1-A1) the * C22 of resulting the 3rd pixel of this transparent processing]+(1-A2) (1-A2) * C22+A2*C1 of C1 or C3=A1*C21+ (1-A1).
According to above-mentioned conception, covering picture transparent processing device of the present invention, wherein the A2 in this group transparence value is obtained from this first pixel number certificate by this transparent processing engine.
According to above-mentioned conception, covering picture transparent processing device of the present invention, wherein this transparence value is obtained from this internal memory by this transparent processing engine.
Description of drawings
Following accompanying drawing of the present invention and detailed description are able to more deep understanding:
Fig. 1 is that configuration diagram is handled in signal of video signal output commonly used in the present computer system;
Fig. 2 is that a covering picture shows synoptic diagram in the common technique;
Fig. 3 is the configuration diagram of the present invention for the solution covering picture transparent processing device that common deletion developed out;
Fig. 4 (a) is a covering picture view in the technology of the present invention (b).
Each included in the accompanying drawing of the present invention assembly is as follows:
| Internal memory 10 | Picture display buffer memory 101 |
| Cover picture buffering storer 102 | Screen controller 11 |
| Digital analog converter 12 | Cover picture processing engine 13 |
| Display 15 | |
| | Internal memory 30 |
| Picture display buffer memory 301 | Screen controller 31 |
| Cover picture buffering storer 302,303 | Digital analog converter 32 |
| Cover picture processing engine 331,332 | Display 34 |
| Transparent processing engine 35 | Transparence value data field 304 |
| Transparence value data field 305 | |
| | Overlapping |
Embodiment
See also Fig. 3, the present invention is for solving the configuration diagram of the covering picture transparent processing device that common deletion developed out, in internal memory 30, except that a picture display buffer memory 301 of planning (On Screenframe buffer) is deposited unicursal face display pixel data read for screen controller 31, planning has one group to cover picture buffering storer (for example 302 among the figure and 303) and deposit several and cover the picture pixel data more in addition.And from cover picture buffering storer 302 and 303, read covering picture pixel data respectively when covering picture processing engine (Overlay engine) 331 and 332, and send transparent processing engine 35 (alpha blending engine) to handle with the picture display pixel data that screen controller 31 is exported, so can obtain a pixel data of finishing transparent processing, and then export this digital analog converter (Digital-to-Analog Converter to, abbreviation DAC) 32 changes, and the simulating signal that can provide display 15 to show is provided.
Below cooperate Fig. 4 (a) to cover the content of picture view shown in (b), the processing details of transparent processing engine 35 (alphablending engine) is described.When picture shows shown in Fig. 4 (a), be not capped picture 41,42 raw frames that covered 40 and just directly show with stored these stroke face display pixel data in the picture display buffer memory 301, covering picture 41 then carries out computing with the pixel data of same position in stored these stroke face display pixel data in stored these covering picture pixel data and the picture display buffer memory 301 in the covering picture buffering storer 302 and obtains transparent covering picture pixel data.And the color-values of these transparent covering picture pixel data
C3＝(1-A)*C1+A*C2
Wherein C1 represents the color-values of stored these stroke face display pixel data in this picture display buffer memory 301, and C2 represents the color-values of stored these covering picture pixel data in this covering picture buffering storer 302, represent a transparence value as for A, its numerical value greater than 0 less than 1.And this transparence value A can obtain (for example comprising parameters such as A, R, G, B in the pixel data) from this picture in stored these stroke face display pixel data the display buffer memory 301, or is provided by application program and be placed in a transparence value data field 304 in the internal memory 30.In like manner, covering picture 42 then carries out computing with the pixel data of same position in stored these stroke face display pixel data in stored these covering picture pixel data and the picture display buffer memory 301 in the covering picture buffering storer 303 and obtains transparent covering picture pixel data, and its compute mode is same as described above, so repeat no more.
And thus, cover the raw frames 40 that still can demonstrate pellucidly in the picture 41,42 under originally being capped among Fig. 4 (a), effectively solve the disappearance of common means, and then reach fundamental purpose of the present invention.
And when picture shows shown in Fig. 4 (b), itself and the maximum different overlapping regions 43 that are of Fig. 4 (a), it is for covering picture 41,42 and the overlapping part of raw frames 40 threes, and at this moment transparent processing engine 35 (alpha blending engine) according to the color-values C3 that draws each pixel in this overlapping region 43 one of in the following formula.
C3=A2*[A1*C21+ (1-A1) * C22]+(1-A2) C1 or
C3＝A1*C21+(1-A1)(1-A2)*C22+A2*C1
Wherein, C1 represents the color-values of stored these stroke face display pixel data in this picture display buffer memory 301, C21 and C22 then represent the color-values of stored covering picture pixel data in this covering picture buffering storer 302 and 303 respectively, represent a transparence value as for A1, A2, its numerical value greater than 0 less than 1.And this transparence value A2 can obtain (for example comprising parameters such as A, R, G, B in the pixel data) in stored these stroke face display pixel data from this picture display buffer memory 301, or is provided by application program and be placed in a transparence value data field 304 in the internal memory 30.Transparence value A1 then can be provided by application program and be placed in a transparence value data field 305 in the internal memory 30.
So, still can demonstrate the raw frames 40 and covering picture 41 that originally are capped under picture 42 coverings in the overlapping region 43 of Fig. 4 (b) pellucidly, can solve the disappearance of common means effectively, and then reach fundamental purpose of the present invention.
Claims (10)
1. one kind covers picture transparent processing method, be applied on a digital image processing device and the display, deposited unicursal face display pixel data and covering picture pixel data in the internal memory in this digital image processing device, it is characterized in that this method comprises the following steps:
Read in the one first pixel number certificate and one second pixel number certificate that adhere to separately in these stroke face display pixel data and this covering picture pixel data respectively;
According to a transparence value this first pixel number is obtained one the 3rd pixel number certificate according to carrying out a transparent processing with second pixel number certificate; And
The 3rd pixel number one is covered picture area according to the show on this display.
2. covering picture transparent processing method as claimed in claim 1, it is characterized in that, this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second picture element point chromatic value C2 and one the 3rd picture element point chromatic value C3 respectively, and this transparence value A be one greater than 0 less than 1 numerical value, and through the color-values C3=of resulting the 3rd pixel of this transparent processing (1-A) * C1+A*C2.
3. one kind covers picture transparent processing method, be applied on a digital image processing device and the display, deposited unicursal face display pixel data and several covering picture pixel data in the internal memory in this digital image processing device, it is characterized in that this method comprises the following steps:
Read in the one first pixel number certificate and one second group of pixel number certificate that adhere to separately in these stroke face display pixel data and these covering picture pixel data respectively;
According to one group of transparence value this first pixel number is obtained one the 3rd pixel number certificate according to carrying out a transparent processing with second group of pixel number certificate; And
With the 3rd pixel number according to the show these on this display cover in the overlapping zone of picture.
4. covering picture transparent processing method as claimed in claim 3, it is characterized in that, this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second group of picture element point chromatic value C21, C22 and one the 3rd picture element point chromatic value C3 respectively, and this group transparence value A1, A2 all be one greater than 0 less than 1 numerical value, and through the color-values of resulting the 3rd pixel of this transparent processing
C3＝A2*[A1*C21+(1-A1)*C22]+(1-A2)C1
Or (1-A2) * C22+A2*C1 of C3=A1*C21+ (1-A1).
5. one kind covers picture transparent processing device, be applied on a digital image processing device and the display, deposited unicursal face display pixel data and covering picture pixel data in the internal memory in this digital image processing device, it is characterized in that this device comprises:
One screen controller, signal are connected in this internal memory, read one first pixel number that belongs in these stroke face display pixel data according to after send;
One covers the picture processing engine, and signal is connected in this internal memory, read one second pixel number that belongs in these covering picture pixel data according to after send;
One transparent processing engine, signal are connected in this screen controller and this covering picture processing engine, and it obtains one three pixel number certificate to this first pixel number that is received according to carrying out a transparent processing with second pixel number certificate according to a transparence value; And
One digital analog converter, signal are connected in this transparent processing engine, and it according to exporting this display to after converting a simulating signal to, and then drives the 3rd pixel number this display and cover on the picture area in one and show.
6. covering picture transparent processing device as claimed in claim 5, it is characterized in that, this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second picture element point chromatic value C2 and one the 3rd picture element point chromatic value C3 respectively, and this transparence value A be one greater than 0 less than 1 numerical value, and this transparent processing engine carries out color-values C3=(1-A) the * C1+A*C2 of resulting the 3rd pixel of this transparent processing.
7. one kind covers picture transparent processing device, be applied on a digital image processing device and the display, deposited unicursal face display pixel data and several covering picture pixel data in the internal memory in this digital image processing device, it is characterized in that this device comprises:
One screen controller, signal are connected in this internal memory, read one first pixel number that belongs in these stroke face display pixel data according to after send;
Several cover picture processing engine, and signal is connected in this internal memory, read respectively one second group of pixel number that the pixel that belongs in these covering picture pixel data forms according to after send;
One transparent processing engine, signal is connected in this screen controller and these cover the picture processing engine, and it obtains one three pixel number certificate to this first pixel number that is received according to carrying out a transparent processing with second group of pixel number certificate according to one group of transparence value; And
One digital analog converter, signal are connected in this transparent processing engine, and it according to exporting this display to after converting a simulating signal to, and then drives the 3rd pixel number this display and cover in the overlapping zone of pictures in these and show.
8. covering picture transparent processing device as claimed in claim 7, it is characterized in that, this first pixel number according to, second pixel number according to the 3rd pixel number according to including one first picture element point chromatic value C1, one second group of picture element point chromatic value C21, C22 and one the 3rd picture element point chromatic value C3 respectively, and this group transparence value A1, A2 all be one greater than 0 less than 1 numerical value, and this transparent processing engine carries out the color-values of resulting the 3rd pixel of this transparent processing
C3＝A2*[A1*C21+(1-A1)*C22]+(1-A2)C1
Or (1-A2) * C22+A2*C1 of C3=A1*C21+ (1-A1).
9. covering picture transparent processing device as claimed in claim 8 is characterized in that, the A2 in this group transparence value is obtained from this first pixel number certificate by this transparent processing engine.
10. covering picture transparent processing device as claimed in claim 8 is characterized in that this transparence value is obtained from this internal memory by this transparent processing engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021270449A CN1175378C (en) | 2002-07-26 | 2002-07-26 | Deivce and method for processing covered picture to become transparent one |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021270449A CN1175378C (en) | 2002-07-26 | 2002-07-26 | Deivce and method for processing covered picture to become transparent one |
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| Publication Number | Publication Date |
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| CN1397915A true CN1397915A (en) | 2003-02-19 |
| CN1175378C CN1175378C (en) | 2004-11-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324903C (en) * | 2003-05-23 | 2007-07-04 | 威盛电子股份有限公司 | Auto-configuration for instrument setting |
| CN100559453C (en) * | 2006-02-27 | 2009-11-11 | 三菱电机株式会社 | Image synthesizer |
| CN101268437B (en) * | 2005-11-02 | 2010-05-19 | 松下电器产业株式会社 | Display-object penetrating apparatus and method |
| CN101470577B (en) * | 2007-12-27 | 2011-01-19 | 英业达股份有限公司 | Picture switching method |
| CN102446364A (en) * | 2011-09-05 | 2012-05-09 | 中兴通讯股份有限公司 | Image processing method, device and terminal based on transparency |
| CN103926785A (en) * | 2014-04-30 | 2014-07-16 | 广州视源电子科技股份有限公司 | Double-camera implementation method and device |
-
2002
- 2002-07-26 CN CNB021270449A patent/CN1175378C/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324903C (en) * | 2003-05-23 | 2007-07-04 | 威盛电子股份有限公司 | Auto-configuration for instrument setting |
| CN101268437B (en) * | 2005-11-02 | 2010-05-19 | 松下电器产业株式会社 | Display-object penetrating apparatus and method |
| CN100559453C (en) * | 2006-02-27 | 2009-11-11 | 三菱电机株式会社 | Image synthesizer |
| CN101470577B (en) * | 2007-12-27 | 2011-01-19 | 英业达股份有限公司 | Picture switching method |
| CN102446364A (en) * | 2011-09-05 | 2012-05-09 | 中兴通讯股份有限公司 | Image processing method, device and terminal based on transparency |
| WO2012151995A1 (en) * | 2011-09-05 | 2012-11-15 | 中兴通讯股份有限公司 | Transparency-based image processing method and device and terminal |
| US9230347B2 (en) | 2011-09-05 | 2016-01-05 | Zte Corporation | Transparency-based image processing method, device, and terminal |
| CN102446364B (en) * | 2011-09-05 | 2017-04-12 | 中兴通讯股份有限公司 | Image processing method, device and terminal based on transparency |
| CN103926785A (en) * | 2014-04-30 | 2014-07-16 | 广州视源电子科技股份有限公司 | Double-camera implementation method and device |
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| Publication number | Publication date |
|---|---|
| CN1175378C (en) | 2004-11-10 |
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