CN100499777C - Image processing system of digital camera and method thereof - Google Patents
Image processing system of digital camera and method thereof Download PDFInfo
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- CN100499777C CN100499777C CNB2005101355789A CN200510135578A CN100499777C CN 100499777 C CN100499777 C CN 100499777C CN B2005101355789 A CNB2005101355789 A CN B2005101355789A CN 200510135578 A CN200510135578 A CN 200510135578A CN 100499777 C CN100499777 C CN 100499777C
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- digitized video
- video
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Abstract
The invention relates to an image processing system of digit camera and relative method, wherein said system comprises one delete controller, row-distance prolonging controller, and one effective image interface controller. When the digit image needs to be prolonged, the invention can use row-distance prolonging controller to prolong the output time.
Description
Technical field
The invention relates to a kind of image processing system and method for digital camera, particularly about a kind of image processing system and method for may command image output time.
Background technology
In general, digital camera can be handled dynamic or static image amplification operation.With dynamic image, digital camera is when carrying out dynamic image amplification operation, and the shown image number of image display cell (for example LCD) per second must reach certain number and just be unlikely phenomenons such as producing the noise and the persistence of vision.This has limited video search unit (for example CCD) undoubtedly must export each row image to image display cell in the regular hour.In addition, in the prior art, when carrying out the operation of image processing and amplifying, image process unit must be reserved specific frequency range and handle and want amplified images, and enlargement ratio is big more, and the frequency range that reserve is also bigger.
Yet in the prior art, each handling procedure of image processing and amplifying operation also can't stop.In other words, when image through retrieval, conversion, handle, amplify, temporary when showing to the end, any one step all can't be suspended.Therefore, prior art is in carrying out the image processing and amplifying, during particularly powerful more processing and amplifying, usually can cause handling procedure have little time to handle because of frequency range is not enough, and the magnified image that causes exporting produces noise.
Though prior art, has disclosed frequency range that improves process chip and this two kinds the solution of turnover rate that reduces magnified image in order to solve the above problems.But the frequency range that improves process chip will cause the power consumption of digital camera to increase; And reduce the turnover rate of magnified image, will reduce the readability of image.
Therefore, be necessary to provide another kind of new image processing system and method really, to solve the existing in prior technology problem.
Summary of the invention
Main purpose of the present invention provides a kind of image processing system and method, in order to when the processing and amplifying operation of combine digital image, under frequency range that does not increase image scratch-pad memory and chip or clock pulse, can also keep certain image turnover rate, to avoid producing phenomenons such as the noise and the persistence of vision.
For reaching above-mentioned purpose, the invention provides a kind of image processing system, it comprises: a video search unit is used to retrieve a raw video, and converts this raw video to digitized video; One image control unit is used to carry out a video conversion processing operation, with the processing sequential that produces a predetermined digitized video that amplifies and control this predetermined digitized video that amplifies; And an image-amplifying unit, be used to amplify this predetermined digitized video that amplifies, make it become a digitized video after amplifying.
Wherein, the image control unit comprises: a cleaning control unit is used to reduce the data volume of the horizontal direction of digitized video; One line-spacing prolongs control unit, is used for the output time of every capable image of control figure image; And an effective image interface (Window ofInterest, WOI) control unit are used to reduce the data volume of the vertical direction of digitized video.
In addition, the present invention also provides a kind of image treatment method, and it may further comprise the steps: with digitized video via a video conversion processing operation after, the output one predetermined digitized video that amplifies; With the predetermined digitized video that amplifies after an image processing and amplifying operation, after output one is amplified digitized video; And judge whether to take place a situation that need prolong the output time of digitized video, if then carry out the mechanism that prolongs output time.
So, by by above-mentioned image processing system and method, promptly can be when the processing and amplifying operation of carrying out digital camera, reduce the power consumption of chip and avoid the generation of image noise.
Description of drawings
Fig. 1 is the framework calcspar of image processing system of the present invention;
Fig. 2 is the configuration diagram of image control unit of the present invention;
Fig. 3 is the flow chart of steps of image treatment method of the present invention.
[explanation of assembly conventional letter]
Image processing system 10
Video search unit 21
Image control unit 22
Image process unit 23
Image-amplifying unit 24
Image buffer unit 25
Image display cell 26
Line-spacing prolongs control unit 222
Effective image interface control unit 223
Control bus 31
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and cooperate appended graphicly, be described in detail below.
Please refer to the framework calcspar of Fig. 1 about image processing system of the present invention.As shown in Figure 1, image processing system 10 of the present invention comprises video search unit 21, image control unit 22, image process unit 23, image-amplifying unit 24, image buffer unit 25, image display cell 26 and the control bus 31 of mutual electric property coupling.
Video search unit 21 is to be used for retrieving a raw video, and raw video is converted to digitized video; Image control unit 22 is to carry out a video conversion processing operation, is used for digitized video is converted into the digitized video of predetermined amplification and the processing sequential of controlling the predetermined digitized video that amplifies; Image process unit 23 is in order to handle the image processing operations such as picture, color and luster or brightness of the predetermined digitized video that amplifies; Image-amplifying unit 24 is to be used to carry out the operation of image processing and amplifying, to amplify the predetermined digitized video that amplifies, and the digitized video after making it become amplification; Image buffer unit 25 is the digitized videos that are used to store after the amplification; And image display cell 26 is the digitized videos that are used to show after the amplification.In addition, image processing system 10 is controlled image control unit 22 by control bus 31.
Then, please refer to the configuration diagram of Fig. 2 about image control unit 22 of the present invention.As shown in Figure 2, image control unit 22 comprises that (Window of Interest, WOI) control unit 223 for cleaning control (Sweep Control) unit 221, line-spacing prolongation control (Line Extend Control) unit 222 and effective image interface.Wherein, cleaning control unit 221 is the data volumes that are used for reducing the horizontal direction of digitized video; It is to be used for the output time of every capable image of control figure image that line-spacing prolongs control unit 222; And effectively image interface control unit 223 is the data volumes that are used for reducing the vertical direction of digitized video, for the output one predetermined digitized video that amplifies.Simultaneously, cleaning control unit 221, line-spacing prolong control unit 222 and effective image interface control unit 223 is to be mutual electric property coupling, and prolongs control unit 222 by the line-spacing in the control bus 31 control image control units 22.
In one embodiment of this invention, video search unit 21 can be CCD assembly, cmos component or other similar assembly; Image control unit 22, image process unit 23 and image-amplifying unit 24 can be by being reached by modes such as software program, circuit framework and/or hardware units; Image buffer unit 25 preferablies are a random access memory (RAM); Image display cell 26 preferablies are a LCD screen (LCD); And the present invention can carry out dynamic or static image processing and amplifying operation.
By framework by Figure 1 and Figure 2, the present invention can utilize image processing system 10 to carry out the processing and amplifying operation at an image, except that reducing the chip power consumption because of the data volume that reduces image, and can be under frequency range that does not increase image scratch-pad memory and chip or clock pulse, keep certain image turnover rate, to avoid producing phenomenons such as the noise and the persistence of vision.
In addition, the present invention provides a kind of image treatment method in addition, for the image processing and amplifying operation of carrying out a digital camera.Below please refer to the flow chart of steps of Fig. 3 about image treatment method of the present invention.
As shown in Figure 3, the present invention at first carry out step 301, carries out a video conversion processing operation at a digitized video, to export a predetermined digitized video that amplifies.In step 301, the present invention is by reducing digital image data data volume in the horizontal direction earlier by cleaning control unit shown in Figure 2 221; The image data that then will reduce prolongs the time of the every capable image output of control unit 222 controls through line-spacing; Then utilize effective image interface control unit 223 to reduce the data volume of digital image data again, reduced the digitized video of the predetermined amplification of data volume and required amount of calculation for output one in vertical direction.
Then, the present invention carry out step 302, carries out an image processing and amplifying operation at the predetermined digitized video that amplifies, with export one after amplifying digitized video.In step 302, the present invention is by carrying out image processing operations such as picture, color and luster and/or brightness by image process unit 23 at the predetermined digitized video that amplifies, and, make it become a digitized video after amplifying by amplify this predetermined digitized video that amplifies by image-amplifying unit 24.
Then the present invention carry out step 303, judges whether to take place a situation that needs to prolong output time.Wherein, digitized video after amplifying is when image-amplifying unit 24 outputs to image buffer unit 25, if when causing the problem of frequency range deficiency, digitized video after promptly expression is amplified needs a bigger frequency range, otherwise can cause image processing too late, a situation that needs to prolong output time so promptly takes place.
When taking place to need to prolong the situation of output time, the present invention promptly carry out step 304, carry out a mechanism that prolongs output time, the line-spacing that image processing system 10 is controlled in the image control unit 22 by control bus 31 prolongs control unit 222, suspends the output of digital image data.By the time after need prolonging that the situation of output time solves, control line-spacing by control bus 31 again and prolong control unit 222, continue the output of digital image data.
When not taking place to need to prolong the situation of output time, the present invention then carry out step 305, do not carry out the mechanism that prolongs output time, and the digitized video after will amplifying directly is stored to image buffer unit 25, again by being shown by image display cell 26.
To sum up institute is old, and above-mentioned many embodiment give an example for convenience of explanation, though the present invention discloses as above with preferred embodiment, right its is not in order to limit the present invention, anyly have the knack of this operator, without departing from the spirit and scope of the present invention, when doing a little change and retouching.Therefore, protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (7)
1. an image processing system is to be used for a digital camera, for the processing and amplifying operation of carrying out a digitized video, it is characterized in that, this image processing system comprises: a video search unit is to be used to retrieve a raw video, and converts this raw video to this digitized video;
One image control unit is to be used to carry out a video conversion processing operation, and for the processing sequential that this digitized video is converted to a predetermined digitized video that amplifies and control this predetermined digitized video that amplifies, this image control unit comprises:
One cleaning control unit is used to reduce the data volume of the horizontal direction of this digitized video;
One line-spacing prolongs control unit, is used to control the output time of every capable image of this digitized video; And
One effective image interface control unit is used to reduce the data volume of the vertical direction of this digitized video; This cleaning control unit, this line-spacing prolongation control unit and this effective image interface control unit are in order to produce this predetermined digitized video that amplifies;
One image-amplifying unit is to be used to amplify this predetermined digitized video that amplifies, and makes it become a digitized video after amplifying;
One image buffer unit is the digitized video that is used to store after this amplification; And
One image display cell is the digitized video that is used to show after this amplification;
Wherein this video search unit, this image control unit, this image-amplifying unit, this image buffer unit and this image display cell are to be mutual electric property coupling.
2. image processing system as claimed in claim 1 is characterized in that, wherein this image processing system is controlled this line-spacing prolongation control unit of this image control unit by a control bus.
3. an image treatment method is to be used in the digital camera, and the processing and amplifying operation for carrying out a digitized video is characterized in that this method may further comprise the steps:
Steps A: behind a video conversion processing operation, the digitized video of amplification is scheduled in output one to this digitized video earlier;
Step B: this predetermined digitized video that amplifies after an image processing and amplifying operation, after output one is amplified digitized video;
Step C: judge whether to take place a situation that needs to prolong output time, if then suspend this predetermined digitized video that amplifies of output.
4. image treatment method as claimed in claim 3 is characterized in that, described this video conversion processing operation of described steps A may further comprise the steps:
Reduce the data volume of the horizontal direction of this digitized video, for producing this predetermined digitized video that amplifies.
5. image treatment method as claimed in claim 4 is characterized in that, described this video conversion processing operation of described steps A may further comprise the steps:
Control the output time of every capable image of this digitized video, for producing this predetermined digitized video that amplifies.
6. image treatment method as claimed in claim 5 is characterized in that, described this video conversion processing operation of described steps A may further comprise the steps:
Reduce the data volume of the vertical direction of this digitized video, for producing this predetermined digitized video that amplifies.
7. image treatment method as claimed in claim 3, it is characterized in that, the situation that described these need of described step C prolong output time is for the digitized video after this amplification of output causes this image processing and amplifying operation processing too late, and needs the situation of the digitized video of this amplification of time-out output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101355789A CN100499777C (en) | 2005-12-29 | 2005-12-29 | Image processing system of digital camera and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101355789A CN100499777C (en) | 2005-12-29 | 2005-12-29 | Image processing system of digital camera and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1992864A CN1992864A (en) | 2007-07-04 |
| CN100499777C true CN100499777C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101355789A Expired - Fee Related CN100499777C (en) | 2005-12-29 | 2005-12-29 | Image processing system of digital camera and method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN100499777C (en) |
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2005
- 2005-12-29 CN CNB2005101355789A patent/CN100499777C/en not_active Expired - Fee Related
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| CN1992864A (en) | 2007-07-04 |
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