CN100444614C - Image acquisition apparatus capable of rapidly processing image and its image acquisition method - Google Patents
Image acquisition apparatus capable of rapidly processing image and its image acquisition method Download PDFInfo
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- CN100444614C CN100444614C CNB2005100269023A CN200510026902A CN100444614C CN 100444614 C CN100444614 C CN 100444614C CN B2005100269023 A CNB2005100269023 A CN B2005100269023A CN 200510026902 A CN200510026902 A CN 200510026902A CN 100444614 C CN100444614 C CN 100444614C
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Abstract
The invention relates to an image pick-up device which can quickly process an image and an image pick-up method thereof. The image pick-up device comprises an image pick-up unit and a processing unit, wherein the image pick-up unit is used for picking up an original image and transforming the original image into first image data for outputting. The processing unit generates second image data through the first image data and generates an image parameter according to the second image data, and the image parameter is used for executing an image correction program. The data amount of the second image data is less than that of the first image data.
Description
Technical field
The invention relates to a kind of image capture unit, but and particularly relevant for a kind of image capture unit of fast processing image.
Background technology
Please refer to Fig. 1, Fig. 1 shows the block diagram of traditional image capture unit.Image capture unit 100 comprises image acquisition unit 110, processing unit 120 and mnemon 130.Image acquisition unit 1 10 is exported in order to acquisition raw video S0 and after transferring image data D1 to.Image data D2 after processing unit 120 produce to be handled according to image data D1, and in processing procedure, image data D1 is stored in mnemon 130.Wherein, image data D2 is formed by the data format that changes image data D1.
In order to meet user's demand or to correct the defective that pick-up image produces, for example user demand of the lightness of the color of the size of the gradient of pick-up image, original document, change or wiping out background, image and resolution, image or the like is set, then need image data D1 is analyzed computing to get above-mentioned image capture parameter, the detection parameters, image size parameter, image of for example tilting cuts that parameter, lightness and resolution Control Parameter, background are revised parameter, compress mode is selected parameter or the like, to adjust image data D1.
Yet, because image data D2 data volume is quite huge, for instance, the file of an A4 form size is desired with the resolution of 600dpi and with white-black pattern acquisition raw video S0, the data volume of the image data D1 that is produced is about hundreds of KByte, if want to capture identical raw video S0 with equal resolution and with color mode, the data volume of the image data D1 that is produced is more up to number MByte.
Therefore, if desire carries out operational analysis to huge image data D1 and go out image parameter P1, operational analysis promptly goes out image parameter P1 to image data D1 with big capacity internal memory must to utilize high-order processor in the main frame 140.If desire by image capture unit 100 voluntarily rapidly operational analysis go out image parameter P1 then need be equipped with main frame 140 in the data processing hardware of identical powerful processing capacity, and will make that manufacturing cost significantly increases.
Summary of the invention
In view of this, but purpose of the present invention is exactly at image capture unit that a kind of fast processing image is provided and image acquisition method thereof.Utilization transfers image data the mode of contract drawing to, make image capture unit rapidly operational analysis go out image parameter, with the correcting image data.
According to purpose of the present invention, but the image capture unit of a kind of fast processing image of proposition, and this image capture unit comprises image acquisition unit and processing unit.Image acquisition unit is exported in order to the acquisition raw video and after transferring first image data to.Processing unit produces second image data by first image data, and produces image parameter according to second image data.The data volume of second image data is less than the data volume of first image data.Processing unit is proofreaied and correct first image data according to image parameter, to produce the 3rd image data.
According to another object of the present invention, but the image acquisition method of a kind of fast processing image of proposition, and this image acquisition method is applicable to image capture unit.At first, acquisition raw video and transfer first image data to.Then, produce second image data according to first image data, the data volume of second image data is the data volume less than first image data.At last, produce image parameter according to second image data.Proofread and correct first image data according to image parameter, to produce the 3rd image data.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
Fig. 1 shows the block diagram of traditional image capture unit.
But Fig. 2 shows the image capture unit according to the fast processing image of preferred embodiment of the present invention.
Fig. 3 shows the block diagram of the image capture unit external connected electronic device that proposes according to the present invention.
Fig. 4 shows the block diagram of the external main frame of image capture unit that proposes according to the present invention.
But Fig. 5 shows the flow chart according to the image acquisition method of the fast processing image of preferred embodiment of the present invention.
Embodiment
Please refer to Fig. 2, but it shows the image capture unit according to the fast processing image of preferred embodiment of the present invention.Image capture unit 200 comprises image acquisition unit 210, processing unit 220 and mnemon 230.Image acquisition unit 210 is exported in order to acquisition raw video S0 and after transferring image data D1 to.Processing unit 220 can be Application Specific Integrated Circuit (Application Special Integral Circuit, ASIC), processing unit 220 is stored in image data D1 in the mnemon 230 and according to image data D1 and produces image data D3 (not being shown among the figure), and the data volume of image data D3 is the data volume less than image data D1.Processing unit 220 produces image parameter P2 according to image data D3 again, and image parameter P2 is in order to carry out correction mode.
Furthermore, image acquisition unit 210 comprises image sensing component 211 and analog-digital converter 212.Image sensing component 211 acquisition raw video S0 are to produce charge signal S1.Analog-digital converter 212 is exported after transferring charge signal S1 to image data D1, and image data D1 is a digital signal.Processing unit 220 produces image data D3 according to image data D1, and the resolution of image data D3 is less than the resolution of image data D1 in the present embodiment.Image data D3 for example is preview formula image (preview image) or contract drawing (thumbnail image).For instance, the file of an A4 form size, treated unit 220 is with image data D1 boil down to image data D3, and the resolution of second image data is about 72dpi, and the hundreds of KBytes of its data volume before by compression reduce to and are about 100KByte to 150Kbyte.Because the minimizing of data volume makes that arithmetic element 220 is able to image data D3 is promptly carried out operational analysis to produce image parameter P2, image parameter for example comprises that inclination detection parameters, image size parameter, image cut parameter, lightness and resolution Control Parameter, background is revised parameter and compression method selecting parameter or the like.Can learn that according to above-mentioned parameter the size of putting inclination situation, image, the image of original document when the pick-up image cuts the modification of the height of situation, image lightness and resolution, image background and select different compress mode or the like according to different image user demands.
After processing unit 220 self imaging data D3 produce image parameter P2, multiple subsequent treatment mode is arranged.Can be as processing unit 200 according to producing image data D4 output behind the above-mentioned image parameter P2 correcting image data D1.Processing unit 220 also can directly be exported image parameter P2 and image data D1, and does not do correct operation.
If image capture unit 200 is desired under the situation of direct image output data D4, D4 exports electronic installation to image data.For instance, please refer to Fig. 3, it is shown as the block diagram of the external electronic installation of image capture unit that proposes according to the present invention.Electronic installation 240 receives image data D4, and electronic installation 240 has following possibility to reach different application purposes.
When electronic installation 240 was printing equipment, image capture unit 200 directly exported printing equipment to through the image data D4 that will have better image quality after will proofreading and correct with the printing equipment electric connection.Printing equipment then can further be printed image data D4.In addition, also printing equipment and image capture unit 200 can be integrated into multifunctional paper feeding machine.When electronic installation 240 was picture unit, image capture unit 200 directly exported picture unit to through the image data D4 that will have better image quality after will proofreading and correct with the picture unit electric connection.Picture unit then can further can be faxed image data D4.
When electronic installation 240 is internet appliance, image capture unit 200 directly transfers to internet appliance through the image data D4 that will have better image quality after will proofreading and correct with the internet appliance electric connection, and internet appliance is uploaded network according to image data D4 with image again.Or when electronic installation 240 was main frame, image capture unit 200 produced image data D4 after according to image parameter P2 correcting image data D1, and the image data D4 that directly will have a better image quality exports main frame to.
In addition, image capture unit 200 also can export image parameter P2 and image data D1 to main frame, by main frame according to image parameter P2 correcting image data D1.For instance, please refer to Fig. 4, Fig. 4 shows the block diagram according to the external main frame of the image capture unit of the present invention's proposition.As image capture unit 200 image output parameter P2 and image data D1 during to main frame 250.Main frame 250 can be according to image parameter P2 correcting image data D1 to produce image data D5 (not showing in the drawings).
Please refer to Fig. 5, it shows the flow chart according to the image acquisition method of preferred embodiment of the present invention.Image acquisition method is used for image capture unit 200.The image acquisition method flow chart comprises four steps: at first shown in step 51, capturing raw video S0 and changing raw video is to export behind the image data D1.Then shown in step 52, produce image data D3 according to image data D1, the data volume of image data D3 is less than the data volume of image data D1.Shown in step 53, produce image parameter P2 at last according to image data D3.
But the image capture unit and the image acquisition method thereof of the disclosed a kind of fast processing image of the above embodiment of the present invention.The mode that the data volume and the resolution of image data are dwindled in utilization, make image capture unit even without be equipped with main frame in the same treatment function data processing hardware also rapidly operational analysis go out image parameter, with the correcting image data.
In addition, the image capture unit of present embodiment more can be carried out according to image parameter and proofread and correct, the image data that makes image after the correction can be connected directly to Photomechanical printing apparatus, picture unit and internet appliance or the like after directly output has been revised, the feasible image data of exporting is more pressed close to user's needs.
In sum; though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; can do various variations and modification, so protection scope of the present invention is when being as the criterion with claims.
Claims (19)
1. image capture unit comprises:
Image acquisition unit in order to the acquisition raw video, and is exported after described raw video is converted to first image data; And
Processing unit produces second image data by described first image data, and produces image parameter according to described second image data, and the data volume of described second image data is less than the data volume of described first image data; It is characterized in that,
Described processing unit is proofreaied and correct described first image data according to described image parameter, to produce the 3rd image data.
2. image capture unit as claimed in claim 1, it is characterized in that, described image capture unit and main frame electrically connect, described processing unit is exported described first image data and described image parameter to described main frame, and described main frame is proofreaied and correct described first image data according to described image parameter.
3. image capture unit as claimed in claim 1 is characterized in that, described second image data is a preview formula image.
4. image capture unit as claimed in claim 1 is characterized in that, described second image data is a contract drawing.
5. image capture unit as claimed in claim 1 is characterized in that, described image acquisition unit comprises:
Image sensing component captures described raw video to produce charge signal; And
Analog-digital converter is exported after transferring described charge signal to described first image data;
Wherein, described first image data is a digital signal.
6. image capture unit as claimed in claim 1 is characterized in that, described processing unit is an Application Specific Integrated Circuit.
7. image capture unit as claimed in claim 1 is characterized in that, described image parameter comprises that inclination detection parameters, image size parameter, image cut parameter, lightness and resolution Control Parameter, background is revised parameter and compression method selecting parameter.
8. image capture unit as claimed in claim 1 is characterized in that the resolution of described second image data is less than the resolution of described first image data.
9. image capture unit as claimed in claim 1 is characterized in that, described image capture unit and printing equipment electrically connect, and described printing equipment is printed described the 3rd image data.
10. image capture unit as claimed in claim 1 is characterized in that, described image capture unit and main frame electrically connect, and described processing unit is exported described the 3rd image data to described main frame.
11. image capture unit as claimed in claim 1 is characterized in that, described image capture unit sees through the mode of internet and exports described the 3rd image data.
12. image capture unit as claimed in claim 1 is characterized in that, described image capture unit sees through the mode of fax and exports described the 3rd image data.
13. image acquisition method is applicable to image capture unit, it is characterized in that, its step comprises:
The acquisition raw video, and to change described raw video be first image data;
Produce second image data according to described first image data, wherein, the data volume of described second image data is less than the data volume of described first image data; And
Produce image parameter according to described second image data;
Proofread and correct described first image data according to described image parameter, to produce the 3rd image data.
14. image acquisition method as claimed in claim 13 is characterized in that, described second image data is a preview formula image.
15. image acquisition method as claimed in claim 13 is characterized in that, described second image data is a contract drawing.
16. image acquisition method as claimed in claim 13, it is characterized in that described image parameter comprises that inclination detection parameters, image size parameter, image cut parameter, lightness and resolution Control Parameter, background is revised parameter and compression method selecting parameter.
17. image acquisition method as claimed in claim 13 is characterized in that, the resolution of described second image data is less than the resolution of described first image data.
18. image acquisition method as claimed in claim 13 is characterized in that, described image acquisition method more comprises:
Export described second image data and described image parameter.
19. image acquisition method as claimed in claim 13 is characterized in that, described image acquisition method more comprises:
Export described the 3rd image data.
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| CNB2005100269023A CN100444614C (en) | 2005-06-17 | 2005-06-17 | Image acquisition apparatus capable of rapidly processing image and its image acquisition method |
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| CNB2005100269023A CN100444614C (en) | 2005-06-17 | 2005-06-17 | Image acquisition apparatus capable of rapidly processing image and its image acquisition method |
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| CN100444614C true CN100444614C (en) | 2008-12-17 |
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| CN102035995B (en) * | 2009-09-25 | 2012-10-03 | 慧荣科技股份有限公司 | Image processing system and image processing method |
| CN106028058A (en) * | 2016-05-12 | 2016-10-12 | 青岛海信移动通信技术股份有限公司 | Method and device for recording multimedia data |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249606A (en) * | 1998-09-25 | 2000-04-05 | 力捷电脑股份有限公司 | Method for compressing data in image taking device |
| JP2002314834A (en) * | 2001-02-09 | 2002-10-25 | Seiko Epson Corp | Output image adjustment of image data |
| CN1581917A (en) * | 2003-08-15 | 2005-02-16 | 明基电通股份有限公司 | Output image parameter correcting method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249606A (en) * | 1998-09-25 | 2000-04-05 | 力捷电脑股份有限公司 | Method for compressing data in image taking device |
| JP2002314834A (en) * | 2001-02-09 | 2002-10-25 | Seiko Epson Corp | Output image adjustment of image data |
| CN1581917A (en) * | 2003-08-15 | 2005-02-16 | 明基电通股份有限公司 | Output image parameter correcting method |
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