CN101945220A - Special effect processing method of digital image - Google Patents
Special effect processing method of digital image Download PDFInfo
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- CN101945220A CN101945220A CN2009101587233A CN200910158723A CN101945220A CN 101945220 A CN101945220 A CN 101945220A CN 2009101587233 A CN2009101587233 A CN 2009101587233A CN 200910158723 A CN200910158723 A CN 200910158723A CN 101945220 A CN101945220 A CN 101945220A
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Abstract
The invention discloses a special effect processing method of digital images, which is applied on an image capture device. The special effect processing method of the digital images comprises the following steps: obtaining an external environment luminance value so as to judge the relationship between the exposure threshold of the image capture device and the external environment luminance value; when the exposure threshold is smaller than the external environment luminance value, regulating the aperture value of the image capture device so as to change the exposure time of the image capture device, wherein the exposure time is more than or equal to the total zoom time; and when the exposure threshold is equal to or higher than the external environment luminance value, performing an automatic zoom program so as to process the currently-shot image data of the image capture device.
Description
Technical field
The invention relates to a kind of image treatment method, particularly a kind of digitized video effect processing method.
Background technology
In multimedia environment, image has become the considerable instrument of information representation, yet the processing of the image part of capture (particularly) but is the market that belongs to highly-specialised always, common people are difficult to have an opportunity use, this mainly is because capture equipment all is quite expensive system, is not that general masses can afford.Several years up to date, because the progress of electronics, optical technology, digital image acquisition equipment (as image scanner, digital camera etc.) entered into the individualized market of low price, just is subjected to consumer and dealer's attention gradually.
Digital camera is the emerging product in conjunction with optics, precision optical machinery and electronics technology, it is by charge coupled cell (Charge-coupled Device, CCD) camera lens is obtained video conversion becomes digital image signal, the processing that sees through electronic circuit is stored in digital image signal in the Storage Media, as disk, CD or IC memory card.On the other hand, image also can manifest (as TV or monitor) immediately on various displays, utilizes function again with the editor that makes various images, modification etc., and is quite convenient and save time economical.
Yet arriving along with multimedia era, user often digit expected phase function provides more kinds of brand-new different special functions, to bring the user different pleasantly surprised and impressions, one of Consideration when wherein the IPF of digital camera is not to use the person to buy product yet.
In present digitized video special effect processing, common with radial Fuzzy processing image, cause the rapid near or rapid speed sense far away of finding a view, traditional camera then needs can reach this effect with the manual setting of user, inconvenience that will cause photographer to use like this, perhaps utilize PC device to cooperate image processing software to handle again, yet for the photographer who is unfamiliar with image processing software, also be a kind of burden undoubtedly.
Summary of the invention
In view of above problem, the invention provides a kind of digitized video effect processing method, it is the time for exposure that to adjust image capture unit according to the external environment brightness value automatically, and in exposure program, change the magnification ratio (Zoom) of zoom lens, can be because of the principle of the object distance and the depth of field, and make current captured image data produce radial special-effect, so as to increasing the function of present image processing, and then promote the competitive advantage of product.
Therefore, digitized video effect processing method of the present invention be to be applied on the image capture unit, and the digitized video effect processing method includes the following step: at first, obtain the external environment brightness value, with the threshold exposure of judgement image capture unit and the relation of external environment brightness value; When threshold exposure is lower than the external environment brightness value, adjust the f-number of image capture unit, to change the time for exposure of image capture unit, wherein the time for exposure is more than or equal to the sum total zooming time; And when confirming that threshold exposure is equal to or higher than the external environment brightness value, carry out an autozoom program, to handle the image data of image capture unit current shooting.
In obtaining an external environment brightness value, before the step with the relation of the threshold exposure of judging this image capture unit and this external environment brightness value, also include and on this image capture unit, show an information, this image capture unit is placed in a step of stablizing on the object to remind photographer.
Wherein this sum total zooming time is the product of a zooming time and a zoom hop count value.
Wherein this autozoom program package contains:
According to a gradation of effects value, adjust this zoom hop count value of this image capture unit;
In this time for exposure, move the zoom lens of this image capture unit according to adjusted this zoom hop count value.
When being lower than this external environment brightness value when this threshold exposure, adjust the f-number of this image capture unit, in the step with time for exposure of changing this image capture unit, also include the step of the photosensitivity of adjusting this image capture unit.
By this digitized video effect processing method, it is the time for exposure that to adjust image capture unit according to the external environment brightness value automatically, and guarantee that the time for exposure is more than or equal to the sum total zooming time, then, in shooting process, the while zoom lens motionless zoom lens, change visual range and utilize the relation of the depth of field, make focus image in addition produce radial fuzzy image, need not utilize other filter, or utilize computer equipment to carry out complicated time-consuming computing, so as to increasing the function of present image processing, and then promote the competitive advantage of product.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the flow chart of steps of first embodiment of the invention;
Fig. 2 is the flow chart of steps of second embodiment of the invention.
Embodiment
The disclosed digitized video effect processing method according to the present invention, can be applicable to including, but not limited to digital camera, network camera ... on image input equipment, and can in be built in mobile computer, PDA, digital frame, mobile phone ... in electronic installation,, the user operates relevant function so that being provided with window interface.Yet appended graphic reference and the explanation usefulness of only providing not is in order to restriction the present invention.
Please refer to Fig. 1, be the flow chart of steps of the first embodiment of the present invention.Digitized video effect processing method of the present invention as shown in Figure 1 is (for example to be applied to an image capture unit, digital camera) on, and the digitized video effect processing method includes the following step: at first, in the screen of image capture unit, show an information, to remind photographer that image capture unit is placed on the stable object, as (step 100) on the photographing foot stand, because image specific effect processing method of the present invention is in shooting process, the while zoom lens motionless zoom lens, so in order to obtain preferable filming image effect, suggestion photographer can be placed in image capture unit on the stable object.In addition, also deletion of viewable design demand or omission of step 100.
Then, obtain the external environment brightness value,, wherein can utilize optical lens module in the image capture unit, photoelectricity sensing module (as CCD with the threshold exposure of judging image capture unit and the relation (step 110) of external environment brightness value; Charge-Coupled Device or CMOS; ComplementaryMetal-Oxide Semiconductor) with digital imagery application of logic circuit module (ASIC; Application Specific Integrated Circuit) obtains the external environment brightness value.Threshold exposure can be stored in the internal memory of image capture unit in advance, and in addition, threshold exposure also can be set up on their own, adjust and be stored by photographer.
When threshold exposure is lower than the external environment brightness value, adjust the f-number of image capture unit, to change the time for exposure of image capture unit, wherein the time for exposure is more than or equal to sum total zooming time (step 120), owing to adjust the time for exposure that the f-number of image capture unit can influence image capture unit, in general, when f-number diminishes, then can prolong the time for exposure of image capture unit, opposite, when f-number becomes big, then can shorten the time for exposure of image capture unit.
The sum total zooming time is defined as the product of zooming time and zoom hop count value, for instance, if 0.3 millisecond of zooming time, zoom hop count value is 6 sections, then summing up zooming time is 1.8 milliseconds, therefore, when time for exposure of image capture unit during, can obtain the effect of preferable image specific effect more than or equal to 1.8 milliseconds.
After step 120, when confirming that perhaps threshold exposure is equal to or higher than the external environment brightness value, carry out an autozoom program, to handle the image data (step 130) of image capture unit current shooting.Wherein the autozoom program package contains a with good grounds gradation of effects value, adjusts the zoom hop count value of image capture unit, and in the time for exposure according to the zoom lens of adjusted zoom hop count value movable image capture device.The gradation of effects value can be set up on their own, be adjusted by photographer or be stored in the internal memory of image capture unit.
For instance, the gradation of effects value of image capture unit (for example includes the first order, weak effect), the second level (for example, middle effect) with the third level (for example, potent fruit), the zoom hop count value of image capture unit is 6 sections, and the first order corresponds to 2 sections zooms, the second level corresponds to 4 sections zooms, and the third level corresponds to 6 sections zooms, and the rest may be inferred.
Therefore, when selecting the gradation of effects value to be the first order as if photographer, then in the time for exposure, image capture unit can carry out the action of 2 sections zooms, so that the image data of current shooting presents common radial image effect.If when photographer selected the gradation of effects value to be the second level, then in the time for exposure, image capture unit can carry out the action of 4 sections zooms, so that the image data of current shooting presents obvious radial image effect.If when photographer selected the gradation of effects value to be the third level, then in the time for exposure, image capture unit can carry out the action of 6 sections zooms, so that the image data of current shooting presents very obvious radial image effect.
Please refer to Fig. 2, be the flow chart of steps of the second embodiment of the present invention.Digitized video effect processing method of the present invention as shown in Figure 2 is to be applied on the image capture unit, and the digitized video effect processing method includes the following step: at first, in the screen of image capture unit, show an information, to remind photographer that image capture unit is placed on the stable object, as (step 200) on the photographing foot stand, because image specific effect processing method of the present invention is in shooting process, the while zoom lens motionless zoom lens, so in order to obtain preferable filming image effect, suggestion photographer can be placed in image capture unit on the stable object.In addition, also deletion of viewable design demand or omission of step 200.
Then, obtain the external environment brightness value, with the threshold exposure of judgement image capture unit and the relation (step 210) of external environment brightness value, wherein can utilize optical lens module, photoelectricity sensing module (as CCD or CMOS) in the image capture unit to obtain the external environment brightness value with digital imagery application of logic circuit module (ASIC).Threshold exposure can be stored in the internal memory of image capture unit in advance, and in addition, threshold exposure also can be set up on their own, adjust and be stored by photographer.
When threshold exposure is lower than the external environment brightness value, adjust the f-number and the photosensitivity (ISO) of image capture unit, to change the time for exposure of image capture unit, wherein the time for exposure is more than or equal to sum total zooming time (step 220), owing to adjust the f-number of image capture unit and the time for exposure that photosensitivity can influence image capture unit, in general, when f-number and photosensitivity diminish, then can prolong the time for exposure of image capture unit, opposite, when f-number and photosensitivity become big, then can shorten the time for exposure of image capture unit.
The sum total zooming time is defined as the product of zooming time and zoom hop count value, for instance, if 0.3 millisecond of zooming time, zoom hop count value is 6 sections, then summing up zooming time is 1.8 milliseconds, therefore, when time for exposure of image capture unit during, can obtain the effect of preferable image specific effect more than or equal to 1.8 milliseconds.
After step 220, when confirming that perhaps threshold exposure is equal to or higher than the external environment brightness value, carry out an autozoom program, to handle the image data (step 230) of image capture unit current shooting.Wherein the autozoom program package contains a with good grounds gradation of effects value, adjusts the zoom hop count value of image capture unit, and in the time for exposure according to the zoom lens of adjusted zoom hop count value movable image capture device.The gradation of effects value can be set up on their own, be adjusted by photographer or be stored in the internal memory of image capture unit.
In addition, can realize according to digitized video effect processing method of the present invention by the execution of image capture unit built-in software or firmware program again through being built in the internal memory of image capture unit in software or the firmware program.Wherein, image capture unit also can be provided with photographing module (for example, optical lens module and photoelectricity sensing module), internal memory and processor except screen.In this, photographing module can be in order to the sensing operation and the autozoom program of carrying out the external environment brightness value.Internal memory can be provided with one or more.Internal memory can in order to storage take image data and various pre-set numerical value above-mentioned threshold exposure etc.), processor carries out the required executive program of various calculation process (for example:, and processor needs data such as the image of keeping in and numerical value in the calculation process process.Processor also can be provided with one or more.Processor can carry out the execution of runnings such as image detecting, image capture or demonstration according to the stored executive program of internal memory to be handled.
Comprehensive the above, digitized video effect processing method of the present invention, it is the time for exposure that to adjust image capture unit according to the external environment brightness value automatically, and guarantee that the time for exposure is more than or equal to the sum total zooming time, then, in shooting process, the while zoom lens motionless zoom lens, change visual range and utilize the relation of the depth of field, make focus image in addition produce radial fuzzy image, need not do numerous and diverse manual setting, or utilize computer equipment to carry out complicated time-consuming computing, so as to increasing the function of present image processing, and then promote the competitive advantage of product.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (5)
1. digitized video effect processing method is to be applied to it is characterized in that on the image capture unit that this image specific effect processing method includes the following step:
Obtain an external environment brightness value, with the threshold exposure of judging this image capture unit and the relation of this external environment brightness value;
When this threshold exposure is lower than this external environment brightness value, adjust the f-number of this image capture unit, to change a time for exposure of this image capture unit, wherein should the time for exposure sum up zooming time more than or equal to one;
When confirming that this threshold exposure is equal to or higher than this external environment brightness value, carry out an autozoom program, to handle the image data of this image capture unit current shooting.
2. digitized video effect processing method according to claim 1, it is characterized in that, wherein in obtaining an external environment brightness value, before the step with the relation of the threshold exposure of judging this image capture unit and this external environment brightness value, also include and on this image capture unit, show an information, this image capture unit is placed in a step of stablizing on the object to remind photographer.
3. digitized video effect processing method according to claim 1 is characterized in that, wherein this sum total zooming time is the product of a zooming time and a zoom hop count value.
4. digitized video effect processing method according to claim 3 is characterized in that, wherein this autozoom program package contains:
According to a gradation of effects value, adjust this zoom hop count value of this image capture unit;
In this time for exposure, move the zoom lens of this image capture unit according to adjusted this zoom hop count value.
5. digitized video effect processing method according to claim 1, it is characterized in that, wherein when being lower than this external environment brightness value when this threshold exposure, adjust the f-number of this image capture unit, in the step with time for exposure of changing this image capture unit, also include the step of the photosensitivity of adjusting this image capture unit.
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CN104104846A (en) * | 2013-04-03 | 2014-10-15 | 财团法人工业技术研究院 | Full-cycle image sensing system and sensing method |
CN105578065A (en) * | 2015-12-18 | 2016-05-11 | 广东欧珀移动通信有限公司 | Method for generating high-dynamic range image, photographing device and terminal |
CN105791679A (en) * | 2016-02-29 | 2016-07-20 | 广东欧珀移动通信有限公司 | Method and device for reducing camera power consumption, and mobile terminal |
CN105991911A (en) * | 2016-07-29 | 2016-10-05 | 广东欧珀移动通信有限公司 | Control method, control device and electronic device |
WO2017177693A1 (en) * | 2016-04-15 | 2017-10-19 | 惠州Tcl移动通信有限公司 | Method and system for controlling brightness when starting camera, and shooting terminal |
CN103561210B (en) * | 2013-10-24 | 2019-06-04 | 惠州Tcl移动通信有限公司 | The method and mobile terminal taken pictures according to bias light |
CN110139042A (en) * | 2019-04-18 | 2019-08-16 | 浙江大华技术股份有限公司 | Aperture method of adjustment and device, storage medium and monitoring device |
CN113625503A (en) * | 2018-07-18 | 2021-11-09 | 深圳市大疆创新科技有限公司 | Image shooting method and unmanned aerial vehicle |
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2009
- 2009-07-03 CN CN2009101587233A patent/CN101945220A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104104846A (en) * | 2013-04-03 | 2014-10-15 | 财团法人工业技术研究院 | Full-cycle image sensing system and sensing method |
CN104104846B (en) * | 2013-04-03 | 2018-03-06 | 财团法人工业技术研究院 | Full-cycle image sensing system and sensing method |
CN103561210B (en) * | 2013-10-24 | 2019-06-04 | 惠州Tcl移动通信有限公司 | The method and mobile terminal taken pictures according to bias light |
CN105578065A (en) * | 2015-12-18 | 2016-05-11 | 广东欧珀移动通信有限公司 | Method for generating high-dynamic range image, photographing device and terminal |
CN105791679A (en) * | 2016-02-29 | 2016-07-20 | 广东欧珀移动通信有限公司 | Method and device for reducing camera power consumption, and mobile terminal |
WO2017177693A1 (en) * | 2016-04-15 | 2017-10-19 | 惠州Tcl移动通信有限公司 | Method and system for controlling brightness when starting camera, and shooting terminal |
CN105991911A (en) * | 2016-07-29 | 2016-10-05 | 广东欧珀移动通信有限公司 | Control method, control device and electronic device |
CN113625503A (en) * | 2018-07-18 | 2021-11-09 | 深圳市大疆创新科技有限公司 | Image shooting method and unmanned aerial vehicle |
CN110139042A (en) * | 2019-04-18 | 2019-08-16 | 浙江大华技术股份有限公司 | Aperture method of adjustment and device, storage medium and monitoring device |
US11743599B2 (en) | 2019-04-18 | 2023-08-29 | Zhejiang Dahua Technology Co., Ltd. | Systems and methods for automatically adjusting aperture of a camera |
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