CN108737732A - A method of give a definition static high-definition image shooting area in dynamic image preview - Google Patents
A method of give a definition static high-definition image shooting area in dynamic image preview Download PDFInfo
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- CN108737732A CN108737732A CN201810563266.5A CN201810563266A CN108737732A CN 108737732 A CN108737732 A CN 108737732A CN 201810563266 A CN201810563266 A CN 201810563266A CN 108737732 A CN108737732 A CN 108737732A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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Abstract
The invention discloses a kind of to give a definition the method for static high-definition image shooting area in dynamic image preview, is related to technical field of image processing, includes the following steps：S1：Original dynamic image is obtained in real time, and is shown on the display screen, and display screen dynamic image is obtained；S2：Calculate the dimension scale for showing screen dynamic image and original dynamic image；S3：The interception of image-region is carried out in showing screen dynamic image；S4：Based on dimension scale, shown after obtaining the image-region in the corresponding original dynamic image in truncated picture region.Solve that interception image present in conventional images interception way is unintelligible, the high-definition image that can not obtain original high-definition image or interception is overall picture, needs secondary cutting, cumbersome problem.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of give a definition static high definition figure in dynamic image preview
As the method for shooting area.
Background technology
Currently, with the universal and application of Informalized teaching equipment, the classroom instruction of traditional " blackboard+chalk " just gradually rises
Grade is based on multimedia assisted instruction such as computer network, big screen display device, voice systems.Further to push school information
Change teaching application, promote teaching level and efficiency, more and more schools introduce for teaching material (such as：Experimental demonstration, examination
Volume explanation, example explanation etc.) shooting video frequency showing system.
Captured in real-time is carried out to printing material in kind, various by picture pick-up device, and be synchronized on large screen and shown,
Explanation etc., however usually explanation part only needs certain intermediate portions or region in image, it is therefore desirable to shooting image
Desired part can be just obtained after being intercepted.The intercept method of conventional images is broadly divided into two kinds, and one is directly interception screens
The image of curtain display, however truncated picture is influenced by display screen resolution, the picture pixels of interception are with screen resolution
Based on, interception image resolution ratio is low, is not original image, smudgy, finally influences Classroom Teaching, results even in religion
Learn process interrupt.Another kind is the whole original image of the equipment such as software intercepts video camera shooting, and user needs after the completion of shooting
The region that secondary cutting can just be needed, it is cumbersome, the original high-definition image of desired zone can not be disposably obtained, is reduced
Classroom teaching efficiency.
Therefore the picture material needed for quickly, disposably obtaining and show in teaching process, removes redundancy section, helps
Explanation and analysis of teacher Yu to key content, play the role of giving prominence to the key points, such as：It only needs to obtain during paper explanation
Examination question partial content, answer content need first to protect and (do not obtain), and the region content of interception examination question is when obtaining
It can.
Invention content
It is an object of the invention to：A kind of side for static high-definition image shooting area of giving a definition in dynamic image preview is provided
Method, solve conventional images interception way present in interception image it is unintelligible, the high definition of high-definition image or interception can not be obtained
Image is overall picture, needs secondary cutting, cumbersome problem.
The technical solution adopted by the present invention is as follows：
A method of give a definition static high-definition image shooting area in dynamic image preview, includes the following steps：
S1：Original dynamic image is obtained in real time, and is shown on the screen, and display screen dynamic image is obtained；
S2：Calculate the dimension scale for showing screen dynamic image and original dynamic image；
S3：The interception of image-region is carried out in showing screen dynamic image；
S4：Based on dimension scale, the image-region obtained in the corresponding original dynamic image in truncated picture region is laggard
Row display.
Further, the step S2 is as follows：
S201：Obtain the picture size of original dynamic image；
S202：Obtain the picture size for showing screen dynamic image；
S203：It calculates original image and shows the dimension scale of image.
Further, the step S3 is as follows：
S301：Area selection window is created according to the dynamic image of display screen display；
S302：The position and size that adjustment region selection window is intercepted to needs；
S303：Screen picture interception is carried out according to area selection window.
Further, the step S4 is as follows：
S401：The corresponding original dynamic image data of screen interception image is saved as into picture format；
S402：Position and size that original dynamic image under picture format corresponds to screen interception image are calculated, and to original
The image-region of image corresponding position and size carries out image interception；
S403：The original image of interception is preserved and shown.
Further, the imaging device of the original dynamic images of step S1 includes high photographing instrument and video camera.
Further, the display equipment of the step S403 original images includes computer and projecting apparatus.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, it in the present invention, is intercepted by the dynamic image to screen display, and by the corresponding position of interception image
It sets and size is converted, be converted into the interception to the original high-definition image of dynamic image, screen is shown with existing directly interception
The mode of the image of display is compared, will not be by display screen with image frame without compression, without the high advantage of deformation, clarity
The influence of curtain resolution ratio, can obtain the original high-definition image of shooting, be performed image display convenient for what is be more clear.
It 2,, can be directly in preview screen by carrying out position and size conversion to screen interception image in the present invention
Defined in the shooting of the imaging devices such as high photographing instrument or video camera original high-definition image regional area position and size, and to original
High-definition image is directly preserved and is shown, without carrying out cutting work after shooting again, and the regional display shot is undistorted,
Image interception flow is simplified, quickly can disposably define and successfully obtains high-definition image.
3, in the present invention, the original high definition figure of the imaging devices such as high photographing instrument or video camera shooting defined in preview screen
Behind regional area position and size, defined regional location and size can be adjusted, which does not interfere with into
Easy to operate as the normal work of equipment, efficiently, practicability is stronger.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the method for the present invention flow chart；
Fig. 2 is schematic diagram of the embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e. described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Usually
The component of the embodiment of attached drawing description can be realized with a variety of different configurations here.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment of the present invention, people in the art
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention is to solve the problems, such as that existing direct interception shows that interception image existing for the image of screen display is unsharp,
Either the record such as software intercepts high photographing instrument or video camera imaging device entirety original image needs secondary cutting, and cumbersome asks
Topic, proposes following solution：
As shown in Figure 1, propose a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview, including
Following steps：
S1：Obtaining original dynamic image in real time, (imaging device of original dynamic image includes high photographing instrument and video camera herein
Deng the equipment with imaging function), and shown on the display screen, obtain display screen dynamic image；
Original Dynamic Graph is obtained by imaging device (equipment that such as high photographing instrument, video camera have real time imagery function)
Picture, and shown in real time on display screen (equipment that such as computer display screen curtain, mobile phone display screen curtain have display function)
Show, is convenient for the selection of interception image.
S2：Calculate the dimension scale for showing screen dynamic image and original dynamic image；
The step S2 is as follows：
S201：Obtain the picture size of original dynamic image；
S202：Obtain the picture size for showing screen dynamic image；
S203：It calculates original image and shows the dimension scale of image.
It obtains showing screen dynamic image size and original accordingly by the resolution sizes of imaging device and display screen
Initiating state picture size (also can obtain picture size) by other methods, and dimension scale is that original image and display image are wide
Ratio.
S3：The interception of image-region is carried out in showing screen dynamic image；
The step S3 is as follows：
S301：Area selection window is created according to the dynamic image of display screen display；
S302：The position and size that adjustment region selection window is intercepted to needs；
S303：Screen picture interception is carried out according to area selection window.
By selecting to need truncated picture region on the display screen, and adjustment region is to the position for needing to intercept and greatly
It is small, then image interception is carried out in display screen.
S4：Based on dimension scale, the image-region obtained in the corresponding original dynamic image in truncated picture region is laggard
Row display.
The step S4 is as follows：
S401：The corresponding original dynamic image data of screen interception image is saved as into picture format；
S402：Position and size that the original dynamic image under picture format corresponds to screen interception image are calculated, and to original
The image-region of beginning image corresponding position and size is intercepted；
S403：The original image of interception is preserved and is shown and (carries out the equipment that original image is shown herein to include computer, throw
The equipment that shadow instrument etc. has image display function).
Original dynamic image, which corresponds to the position of screen interception image and the calculating of size, to be set with display based on imaging device
Standby dimension scale, and combine on the display screen each angle of interception image coordinate carry out coordinate transformation, be converted at
As the coordinate on equipment dynamic image, and then obtain position and size that original dynamic image corresponds to screen interception image.
In the present invention, by open high photographing instrument or video camera (equipment with real time imagery function can with) carry out it is real
When dynamic image acquisition, and in display screen, (such as computer display screen curtain or mobile phone display screen curtain have aobvious by dynamic image
Show the equipment of function) on shown, position and ruler are carried out to selection region after creating image selection region on the display screen
Very little adjustment, and realize the interception to selection region image, by being converted to the corresponding position of interception image and size, turn
The interception to the original high-definition image of dynamic image is turned to, existing direct interception is solved and shows existing section of the image of screen display
The problem of taking fogging image and the record imaging device entirety original image such as software intercepts high photographing instrument or video camera need secondary
It cuts, cumbersome problem.
Captured in real-time is carried out to dynamic outdoor scene content by imaging devices such as high photographing instrument or video cameras, display screen is pre-
The pattern of looking at is given a definition image interception region, and then passes through region conversion and obtain high-definition image interception area, this high-definition image is cut
Extract operation is easy, identical as existing screen picture interception step, it is easier to be received by user, practicability is stronger.
The preview mode refers to display screen and is just performed image display in real time when imaging device is opened, without to shooting
Image, which is prestored, directly to be performed image display in display screen.
Embodiment 1
Teacher at school when need explain paper, it is only necessary to obtain examination question part, remaining content does not all need, such as Fig. 2
Shown, the obtaining step of examination question image is as follows：
S1：Preview shooting is carried out to paper content by high photographing instrument, and the paper content taken under preview mode is existed
Real-time display is carried out on computer display screen curtain；
S2：Calculate the dimension scale of computer display screen curtain dynamic image and high photographing instrument dynamic original image；
It is as follows：
S201：Obtain high photographing instrument dynamic image original image size (can obtain original graph by high photographing instrument resolution sizes
As size), 4032 × 3016px of high photographing instrument dynamic original image size；
S202：It obtains computer display screen curtain dynamic image and shows that picture size (can be big by computer display screen curtain resolution ratio
Small acquisition shows picture size), 1920 × 1436px of display image screen size；
S203：It calculates original image and shows the dimension scale of image, dimension scale
S3：The interception of image-region is carried out in showing screen dynamic image；
It is as follows：
S301：Area selection window is created according to the dynamic image that computer display screen curtain is shown；
S302：Adjustment region selection window to the position and size for needing to intercept, setting indicator screen desktop is shown
Top left co-ordinate is (0,0), and the top left co-ordinate of the corresponding picture position in corresponding interception area is (100,100), the lower right corner
Coordinate is (1060,640)；
S303：Image interception is carried out to selection image-region, truncated picture size is 960 × 540px.
S4：Based on dimension scale, the image-region obtained in the corresponding original dynamic image in truncated picture region is laggard
Row display.
It is as follows：
S401：The corresponding high photographing instrument dynamic image data of selection window interception image is saved as into picture format；
S402：Position and size that the original dynamic image under picture format corresponds to screen interception image are calculated, and to original
The image-region of beginning image corresponding position and size is intercepted；
The desktop position and size of obtaining step S3 truncated pictures, truncated picture size are 960 × 540px, image
Upper left position coordinate is that (100,100, bottom right angular coordinate is 1060,640；
The dimension scale K or K1 obtained according to step S2 calculates position and size of the image in original image, interception
Original image size be 960K × 540K px, i.e., size be 2016 × 1134px, upper left position coordinate be (100 × K,
100 × K), as (210,210, bottom right angular coordinate is (1060 × K, 640 × K), and as (2226,1344, that is, what is intercepted is original
Image size is 2016 × 1134px, and upper left position coordinate is that (210,210, bottom right angular coordinate is (2226,1344.
S403：The original image of interception is performed image display by computer.
Examination question image is intercepted by the method, is had the advantage that：
(1) intercept operation step is identical with existing screen picture interception step, therefore there is no difference in operation to cause
Adaptability problem.
(2) captured in real-time is carried out to paper by high photographing instrument, it can be quickly to the progress image of multiple different papers
Interception, and by the display of computer progress high definition original image, contents of test question is explained in detail convenient for teacher, deepen student
To fallibility topic, must the knowledge such as examination paper understanding.
(3) it will not be influenced by computer display screen curtain resolution ratio, and can then obtain needs without secondary cutting and cut
The original high-definition image region taken, image frame without compression, it is high without deformation, clarity.
Embodiment 2
During experimental demonstration, need to carry out image preservation to the equipment and operating method of experimental demonstration, remaining behaviour
Make environment and background does not need, the obtaining step of image is as follows：
S1：Experimental demonstration process is shot by video camera, and will be in the dynamic image that taken under preview mode
Appearance carries out real-time display on computer display screen curtain；
S2：Calculate the dimension scale of computer display screen curtain dynamic image and video camera dynamic original image；
It is as follows：
S201：Obtain video camera dynamic image original image size (can obtain original graph by resolution of video camera size
As size), such as 4032 × 3016px of video camera dynamic original image size；
S202：It obtains computer display screen curtain dynamic image and shows that picture size (can be big by computer display screen curtain resolution ratio
Small acquisition shows picture size), 1920 × 1436px of display image screen size；
S203：It calculates original image and shows the dimension scale of image, dimension scale
S3：The interception of image-region is carried out in showing screen dynamic image；
It is as follows：
S301：Area selection window is created according to the dynamic image that computer display screen curtain is shown；
S302：Adjustment region selection window to the position and size for needing to intercept, setting indicator screen desktop is shown
Top left co-ordinate is (0,0), and the top left co-ordinate of the corresponding picture position in corresponding interception area is (100,100), the lower right corner
Coordinate is (1060,640)；
S303：Image interception is carried out to selection image-region, truncated picture size is 960 × 540px.
S4：Based on dimension scale, the image-region obtained in the corresponding original dynamic image in truncated picture region is laggard
Row display.
It is as follows：
S401：The corresponding video camera dynamic image data of selection window interception image is saved as into picture format；
S402：Position and size that the original dynamic image under picture format corresponds to screen interception image are calculated, and to original
The image-region of beginning image corresponding position and size is intercepted；
The desktop position and size of obtaining step S3 truncated pictures, truncated picture size are 960 × 540px, image
Upper left position coordinate is that (100,100, bottom right angular coordinate is 1060,640；
The dimension scale K1 obtained according to step S2 calculates position and size of the image in original image, interception it is original
Image size isI.e. size is 2016 × 1134px, and upper left position coordinate isAs
(210,210, bottom right angular coordinate isAs (2226,1344, that is, the original image size intercepted be 2016 ×
1134px, upper left position coordinate are that (210,210, bottom right angular coordinate is (2226,1344.
S403：The original image of interception is preserved and sends projecting apparatus and is performed image display.It is defined and is shot by the method
The method in region, has the advantage that：
(1) intercept operation step is identical with existing screen picture interception step, therefore there is no difference in operation to cause
Adaptability problem.
(2) captured in real-time is carried out to experimental demonstration process by video camera, it can be quickly to used in experimentation
Instrument and equipment and Examination on experimental operation carry out the interception of image, remove the interference to image that overall situation or background are brought,
Optimize picture material.
(3) interception image will not be influenced by computer screen resolution ratio, and can then be obtained without secondary cutting need to
The high-definition image region to be intercepted, image frame without compression, it is high without deformation, clarity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (6)
1. a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview, which is characterized in that including following
Step：
S1：Original dynamic image is obtained in real time, and is shown on the display screen, and display screen dynamic image is obtained；
S2：Calculate the dimension scale for showing screen dynamic image and original dynamic image；
S3：The interception of image-region is carried out in showing screen dynamic image；
S4：Based on dimension scale, shown after obtaining the image-region in the corresponding original dynamic image in truncated picture region
Show.
2. according to a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview described in claim 1,
It is characterized in that, the step S2 is as follows：
S201：Obtain the picture size of original dynamic image；
S202：Obtain the picture size for showing screen dynamic image；
S203：It calculates original image and shows the dimension scale of image.
3. according to a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview described in claim 1,
It is characterized in that, the step S3 is as follows：
S301：Area selection window is created according to display screen dynamic image；
S302：The position and size that adjustment region selection window is intercepted to needs；
S303：Screen picture interception is carried out according to area selection window.
4. according to a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview described in claim 1,
It is characterized in that, the step S4 is as follows：
S401：The corresponding original dynamic image data of screen interception image is saved as into picture format；
S402：Position and size that original dynamic image under picture format corresponds to screen interception image are calculated, and to original image
The image-region of corresponding position and size carries out the interception of image；
S403：The original image of interception is preserved and shown.
5. according to a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview described in claim 1,
It is characterized in that：The imaging device of the original dynamic images of step S1 includes high photographing instrument and video camera.
6. a kind of method for static high-definition image shooting area of giving a definition in dynamic image preview according to claim 4,
It is characterized in that：The display equipment of the step S403 original images includes computer and projecting apparatus.
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| CN201810563266.5A CN108737732A (en) | 2018-06-04 | 2018-06-04 | A method of give a definition static high-definition image shooting area in dynamic image preview |
| CN201910468728.XA CN110062172B (en) | 2018-06-04 | 2019-05-31 | Method for defining static high-definition image shooting area under dynamic image preview |
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| CN109859108A (en) * | 2019-02-12 | 2019-06-07 | 杜都 | A kind of image procossing, which is used, is convenient for adjustment of image size method of cutting out |
| CN110636353A (en) * | 2019-06-10 | 2019-12-31 | 青岛海信电器股份有限公司 | Display device |
| CN112863700A (en) * | 2021-01-28 | 2021-05-28 | 青岛海信医疗设备股份有限公司 | Medical image cooperation method, device, equipment and computer storage medium |
| CN114938417A (en) * | 2022-05-12 | 2022-08-23 | 安徽声讯信息技术有限公司 | Webpage-oriented high-speed shooting instrument image acquisition system and image acquisition method |
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| US7675528B2 (en) * | 2003-11-14 | 2010-03-09 | Vistaprint Technologies Limited | Image cropping system and method |
| CN102984476B (en) * | 2012-12-12 | 2016-03-23 | 深圳创维－Rgb电子有限公司 | Widescreen adapting to image processing method and device |
| US8760489B1 (en) * | 2013-06-25 | 2014-06-24 | Vonage Network Llc | Method and apparatus for dynamically adjusting aspect ratio of images during a video call |
| CN105446687B (en) * | 2015-12-07 | 2018-11-02 | 广东威创视讯科技股份有限公司 | A kind of method and apparatus for spelling wall video in window signal partial enlargement |
| CN105915872B (en) * | 2016-06-06 | 2017-12-29 | 苏州佳世达光电有限公司 | The output intent and projection arrangement of image |
| CN105979286A (en) * | 2016-07-05 | 2016-09-28 | 张程 | Composite-resolution video transmitting-playing system and method |
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| CN109859108A (en) * | 2019-02-12 | 2019-06-07 | 杜都 | A kind of image procossing, which is used, is convenient for adjustment of image size method of cutting out |
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| CN110636353A (en) * | 2019-06-10 | 2019-12-31 | 青岛海信电器股份有限公司 | Display device |
| WO2020248640A1 (en) * | 2019-06-10 | 2020-12-17 | 海信视像科技股份有限公司 | Display device |
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| CN114938417A (en) * | 2022-05-12 | 2022-08-23 | 安徽声讯信息技术有限公司 | Webpage-oriented high-speed shooting instrument image acquisition system and image acquisition method |
| CN114938417B (en) * | 2022-05-12 | 2023-10-17 | 安徽声讯信息技术有限公司 | Webpage-oriented high-speed image acquisition system and image acquisition method for high-speed image acquisition instrument |
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| CN110062172B (en) | 2020-12-01 |
| CN110062172A (en) | 2019-07-26 |
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