CN103019026A - Exposure testing method and exposure testing system - Google Patents
Exposure testing method and exposure testing system Download PDFInfo
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- CN103019026A CN103019026A CN201110287643.5A CN201110287643A CN103019026A CN 103019026 A CN103019026 A CN 103019026A CN 201110287643 A CN201110287643 A CN 201110287643A CN 103019026 A CN103019026 A CN 103019026A
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- exposure
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Abstract
The invention discloses an exposure testing method. The exposure testing method comprises the following steps of: setting photographing equipment to be in a non-automatic exposure mode; controlling the photographing equipment to photograph corresponding to different display brightness in a group of control data, reading the brightness value of the photographed image before exposure, and storing each brightness value into a standard file; setting the photographing equipment to be in an automatic exposure mode; controlling the photographing equipment to photograph an image corresponding to the current display brightness when different display brightness in the same group of control data is displayed one by one, reading the brightness value of the photographed image after exposure, and performing contrastive analysis on the brightness value after exposure and the corresponding brightness value in the standard file to obtain a contrastive analysis result; and judging whether the contrastive analysis result conforms to a specified rule, and if the contrastive analysis result conforms to the specified rule and the brightness is not completely displayed, controlling the photographing equipment to photograph the next image for performing contrastive analysis until all pieces of display brightness are completely displayed. The invention also provides an exposure testing system. According to the method, the exposure function of the photographing equipment can be automatically tested.
Description
Technical field
The present invention relates to a kind of exposure method of testing and system, relate in particular to exposure method of testing and system in a kind of picture pick-up device.
Background technology
In the modern life, along with the enhancing of the providing of social consumption level, enterprise and personal security's consciousness, increasing picture pick-up device (camera, video camera, IP Camera etc.) has incorporated daily life.For user-friendly, most picture pick-up devices all possess automatic exposure function, so that the brightness of captured image is moderate.Therefore, the detection of picture pick-up device automatic exposure function is absolutely necessary.
Summary of the invention
In view of above content, be necessary to provide a kind of exposure method of testing, to realize the automatic test of picture pick-up device exposure function.
In view of above content, also be necessary to provide a kind of exposure test macro, to realize the automatic test of picture pick-up device exposure function.
Described exposure method of testing, the method may further comprise the steps: setting steps one: when the connectedness of picture pick-up device and controllable light source device was good, it was non-automatic exposure mode that picture pick-up device is set; Control store step: when different display brightness shows in one group of control data of corresponding controllable light source device, the control picture pick-up device is taken, and read the front brightness value of the exposure of taking the gained image, brightness value before each exposure is stored in the normative document; Setting steps two: when display brightness corresponding to this group control data of choosing under the non-automatic exposure mode shows that when complete, it is auto exposure mode that picture pick-up device is set; Control contrast step: when from above-mentioned non-automatic exposure mode under controllable light source device when controlling on the same group display brightness different in the data and showing one by one, corresponding current display brightness control picture pick-up device is taken an image, and read brightness value after the exposure of taking the gained image, brightness value before the exposure corresponding in brightness value after this exposure and the described normative document is analyzed the comparative analysis result who obtains the front brightness value of this exposure; Determining step as a result: judge whether described comparative analysis result meets established rule, when described comparative analysis result meets established rule, carry out the brightness determining step, otherwise, carry out and stop step; Brightness determining step: judge whether all display brightness in these group control data show complete, when all display brightness in this group control data show when complete, carry out step display, otherwise, return next image of control contrast step continuation shooting and be analyzed; Stop step: control described picture pick-up device and stop to take; Step display: show test results on the screen of picture pick-up device.
Described exposure test macro, this system comprises: module one is set, is used for when the connectedness of picture pick-up device and controllable light source device is good, it is non-automatic exposure mode that picture pick-up device is set; The control store module, when the one group of different display brightness of control data that is used for corresponding controllable light source device shows, the control picture pick-up device is taken, and reads the front brightness value of the exposure of taking the gained image, and brightness value before each exposure is stored in the normative document; Module two is set, and this group that is used for choosing under non-automatic exposure mode is controlled display brightness corresponding to data and is shown that when complete, it is auto exposure mode that picture pick-up device is set; Control contrast module, be used for when from above-mentioned non-automatic exposure mode under controllable light source device when controlling on the same group the different display brightness of data and showing one by one, corresponding current display brightness control picture pick-up device is taken an image, and read brightness value after the exposure of taking the gained image, brightness value before the exposure corresponding in brightness value after this exposure and the described normative document is analyzed the comparative analysis result who obtains the front brightness value of this exposure; Judge module is used for judging whether described comparative analysis result meets established rule as a result; Stopping modular is used for when described comparative analysis result does not meet established rule, controls described picture pick-up device and stops to take; Described control contrast module, also being used for meeting established rule and this group in described comparative analysis result controls all display brightness of data and does not show when complete, the control picture pick-up device continues to take next image and is analyzed, until all display brightness that are somebody's turn to do in the group control data show complete; Display module is used for all display brightness in these group control data and shows when complete or after described picture pick-up device stops shooting, show test results on the screen of picture pick-up device.
Compared to prior art, described exposure method of testing and system, introduce a controllable light source device, in the different external light source situation of controllable light source unit simulation, respectively under the non-automatic exposure mode and auto exposure mode of picture pick-up device, control picture pick-up device photographic images utilizes the brightness value of image to analyze, thereby realizes the intuitively efficiently test of picture pick-up device automatic exposure function.
Description of drawings
Fig. 1 is the expose Organization Chart of test macro preferred embodiment of the present invention.
Fig. 2 is the expose functional block diagram of test macro preferred embodiment of the present invention.
Fig. 3 is the expose process flow diagram of method of testing preferred embodiment of the present invention.
Fig. 4 be among the present invention under the non-automatic exposure mode picture pick-up device take the storage mode of the brightness value of gained image.
Fig. 5 is that of established rule table of the present invention gives an example.
The main element symbol description
Picture pick-up |
1 |
The |
10 |
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11 |
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12 |
The controllable |
2 |
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20 |
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21 |
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100 |
Module one is set | 101 |
The |
102 |
Module two is set | 103 |
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104 |
Judge module as a |
105 |
The |
106 |
Stopping modular | 107 |
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108 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
As shown in Figure 1, be the expose Organization Chart of test macro preferred embodiment of the present invention.
Described picture pick-up device 1 is connected with controllable light source device 2.Described controllable light source device 2 is used for simulating outside photoenvironment.Can be connected by USB, serial ports, bus etc. between described picture pick-up device 1 and the controllable light source device 2.Described picture pick-up device 1 and described controllable light source device 2 environment of living in should guarantee not to be subjected to the impact of other extraneous photoenvironments, so that the outside photoenvironment of described controllable light source device 2 simulations is interference-free.
Described controllable light source device 2 comprises main control chip 20 and display device 21.Described main control chip 20 is to set up a software and form at hardware, contains many group control data in this main control chip 20, contains a plurality of steering orders in every group of control data.The described display device 21 of described main control chip 20 controls is carried out brightness according to steering order and is shown, corresponding different steering orders, and the display brightness of described display device 21 is different.Described display device 21 is the light-emitting devices such as LED lamp.For example, when described display device 21 is the LED lamp, steering order in the described main control chip 20 is used for the working quantity of the light emitting diode of this LED lamp of control, the display brightness of the LED lamp that the working quantity of different light emitting diodes is corresponding different, namely this LED lamp carries out the brightness demonstration according to steering order.
As shown in Figure 2, be the expose functional block diagram of test macro preferred embodiment of the present invention.
Described exposure test macro 10 comprises detection module 100, module 1 is set, control store module 102, module 2 103, control contrast module 104, comparing result judge module 105, brightness judge module 106, stopping modular 107 and display module 108 are set.
Described detection module 100 is for detection of the connectedness of picture pick-up device 1 with controllable light source device 2.
Described detection module 100 sends detection signal to controllable light source device 2, after the main control chip 20 in this controllable light source device 2 receives detection signal, sends test massage to display device 21, and this display device 21 receives the laggard line light source of test signal and shows.Described light source shows the feedback system that refers to after display device 21 receives test signal, as glimmer etc.Detect the light source demonstration of display device 21 when main control chip 20 after, this main control chip 20 sends a feedback signal to described detection module 100, and then detection module 100 judges that picture pick-up devices 1 are good with the connectedness of controllable light source device 2.
When picture pick-up device 1 and the connectedness of controllable light source device 2 are good, module 1 are set are non-automatic exposure mode for picture pick-up device 1 is set, and send a ready signal to controllable light source device 2.After this controllable light source device 2 received ready signal, main control chip 20 was chosen one group of control Data Concurrent and is sent a commencing signal to picture pick-up device 1.
When control store module 102 showed different brightness in display device 21, control picture pick-up device 1 was taken an image every a set time section one.The every conversion of display brightness that described set time Duan Yiying guarantees display device 21 once, picture pick-up device 1 all can be taken an image.
At every turn behind picture pick-up device 1 photographic images, take the brightness value meeting autostore of gained image in the register 12 of picture pick-up device 1, control store module 102 reads the brightness value of taking the gained image from register 12, and this brightness value is stored in the normative document.Described brightness value is stored in the mode of (sequence number, brightness value), as shown in Figure 4 in this normative document.Described sequence number refers to the corresponding sequence number of the order of storing, and such as the brightness value of first storage, then sequence number is 1.The described brightness value that is stored in the normative document is the brightness value under the non-automatic exposure mode, calls the front brightness value of exposure in the following text.
In these group control data display brightness corresponding to all steering orders show complete after, this main control chip 20 can send an end signal to picture pick-up device 1.
After picture pick-up device 1 receives end signal, module 2 103 is set is auto exposure mode for picture pick-up device 1 is set.
When being set, module 2 103 picture pick-up device 1 is set for behind the auto exposure mode, arrange module 2 103 can send one again ready signal to controllable light source device 2, after this controllable light source device 2 receives again ready signal, main control chip 20 is chosen same group of control data when receiving ready signal, and send one again commencing signal to picture pick-up device 1.
Described comparative analysis result refers to deduct with brightness value after the exposure absolute value of the difference that brightness value obtains before the corresponding exposure.All corresponding comparative analysis result of brightness value before each exposure.Control contrast module 104 finds from normative document with this and takes the identical sequence number of sequence number, and brightness value takes out before the exposure that this sequence number in the normative document is corresponding.Described shooting sequence number refers to the corresponding sequence number of order of picture pick-up device 1 photographic images under auto exposure mode, takes for the first time under at auto exposure mode, and then this shooting sequence number is 1.
The comparative analysis result that brightness value is corresponding before described exposure, in the interval corresponding comparative analysis range of results of the residing brightness value of brightness value the time, judge module 105 judges that described comparative analysis result meets established rule as a result before exposure.The comparative analysis result that brightness value is corresponding before described exposure, not before exposure in the interval corresponding comparative analysis range of results of the residing brightness value of brightness value the time, judge module 105 judges that described comparative analysis result does not meet established rule as a result.
The interval total size of the brightness value of image is 0 to 255, and different brightness values is interval, and corresponding comparative analysis result's scope is variant.If brightness value is in higher in the interval total size of brightness value or during position on the low side before the exposure, the amplitude of accommodation can be larger under the auto exposure mode, then corresponding comparative analysis range of results is larger, and when brightness value before the exposure mediates in the interval total size of brightness value, the amplitude of accommodation can be not obvious under the auto exposure mode, and then corresponding comparative analysis range of results is smaller.According to different measuring accuracy demands, judge module 105 judges whether the front brightness value of exposure is in the standard difference of higher or position on the low side in the interval total size of brightness value as a result.Simultaneously, corresponding different measuring accuracy demands, brightness value interval and corresponding comparative analysis range of results can correspondingly be adjusted.Described measuring accuracy demand refers to that the user takes the requirement of gained picture quality to picture pick-up device 1.
As shown in Figure 5, be an established rule table of a certain measuring accuracy of correspondence.In the described established rule table two hurdles are arranged, be respectively the interval and comparative analysis range of results of brightness value.Described brightness value is divided into 8 intervals, and all there is the comparative analysis range of results of a correspondence in each interval.In this established rule table, when brightness value is between 0 to 31 before the exposure, brightness value was in position on the low side before judge module 105 was judged exposure as a result in interval total size, when brightness value is between 224 to 255 before the exposure, brightness value was in higher position before judge module 105 was judged exposure as a result in interval total size, when brightness value was between 32 to 223 before the exposure, brightness value mediated in interval total size before judge module 105 was judged exposure as a result.
When described comparative analysis result met established rule, brightness judge module 106 was used for judging whether these all display brightness of group control data show complete.
When display brightness corresponding to all steering orders in this group control data that main control chip 20 is chosen show complete after, this main control chip 20 can send one again end signal to picture pick-up device 1.When picture pick-up device 1 received again end signal, brightness judge module 106 judged namely that all display brightness show complete in this group control data.
When all display brightness in this group control data do not show when complete, control contrast module 104 also is used for control picture pick-up device 1 and continues to take next luminance picture and be analyzed, until all display brightness in should group control data show complete.
When described comparative analysis result did not meet established rule, stopping modular 107 is used for control picture pick-up device 1 to be stopped to take.
Stop signal of stopping modular 107 transmissions this moment is carried out the brightness demonstration to controllable light source device 2 so that main control chip 20 stops control display device 21.
When all display brightness in this group control data show when complete or described stopping modular 107 sends stop signals to controllable light source device 2, display module 108 is used for showing test results in the screen 11 of picture pick-up device 1.Described test result comprises whether the comparative analysis result meets established rule, when having the comparative analysis result not meet established rule, the exposure function existing problems of picture pick-up device 1 is described then.
As shown in Figure 3, be the expose process flow diagram of method of testing preferred embodiment of the present invention.
Step S100, detection module 100 detects the connectedness of picture pick-up device 1 and controllable light source device 2.
Step S101 when picture pick-up device 1 and controllable light source device 2 connective good, arrange module 1 and picture pick-up device 1 is set is non-automatic exposure mode.
Step S102, main control chip 20 is chosen one group of control data, when control store module 102 shows different display brightness in display device 21 according to this selected order of organizing each steering order in control data, control picture pick-up device 1 photographic images, and from register 12, read the brightness value of taking the gained image, each brightness value is stored in the normative document.
Step S103, when under non-automatic exposure mode, above-mentioned display brightness corresponding to this group control data of choosing show when complete, module 2 103 is set picture pick-up device 1 is set is auto exposure mode.
Step S104, main control chip 20 still choose with non-automatic exposure mode under identical one group of control data, display device 21 is carried out steering order to show different display brightness one by one according to the order of the steering order in these group control data, control contrast module 104 corresponding current display brightness control picture pick-up devices 1 are taken an image, and from register 12, read the brightness value of this photographic images, brightness value corresponding in this brightness value and the described normative document is analyzed obtains a comparative analysis result.All corresponding comparative analysis result of brightness value before each exposure.
Described comparative analysis result refers to deduct with brightness value after the exposure absolute value of the difference that brightness value obtains before the corresponding exposure.
Step S105, described as a result judge module 105 judge whether described comparative analysis result meets established rule.The residing brightness value of brightness value interval was to there being the comparative analysis range of results before described established rule referred to each exposure.When described comparative analysis result meets established rule, execution in step S106, otherwise, execution in step S107.
The comparative analysis result that brightness value is corresponding before described exposure, in the interval corresponding comparative analysis range of results of the residing brightness value of brightness value the time, judge module 105 judges that described comparative analysis result meets established rule as a result before exposure.The comparative analysis result that brightness value is corresponding before described exposure, not before exposure in the interval corresponding comparative analysis range of results of the residing brightness value of brightness value the time, judge module 105 judges that described comparative analysis result does not meet established rule as a result.
Step S106, brightness judge module 106 judge whether that all display brightness in these group control data show complete.When all display brightness corresponding to this group control data show when complete, execution in step S108, otherwise, return execution in step S104, according to the order of the steering order of these group control data, carry out next steering order.
Step S107, stopping modular 107 control picture pick-up devices 1 stop to take.
Step S108, display module 108 show test results on the screen 11 of picture pick-up device 1.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
- One kind the exposure method of testing, it is characterized in that the method may further comprise the steps:Setting steps one: when the connectedness of picture pick-up device and controllable light source device was good, it was non-automatic exposure mode that picture pick-up device is set;Control store step: when different display brightness shows in one group of control data of corresponding controllable light source device, the control picture pick-up device is taken, and read the front brightness value of the exposure of taking the gained image, brightness value before each exposure is stored in the normative document;Setting steps two: when display brightness corresponding to this group control data of choosing under non-automatic exposure mode shows that when complete, it is auto exposure mode that picture pick-up device is set;Control contrast step: when from above-mentioned non-automatic exposure mode under controllable light source device when controlling on the same group display brightness different in the data and showing one by one, corresponding current display brightness control picture pick-up device is taken an image, and read brightness value after the exposure of taking the gained image, brightness value before the exposure corresponding in brightness value after this exposure and the described normative document is analyzed the comparative analysis result who obtains the front brightness value of this exposure;Determining step as a result: judge whether described comparative analysis result meets established rule, when described comparative analysis result meets established rule, carry out the brightness determining step, otherwise, carry out and stop step;Brightness determining step: judge whether all display brightness in these group control data show complete, when all display brightness in this group control data show when complete, carry out step display, otherwise, return next image of control contrast step continuation shooting and be analyzed;Stop step: control described picture pick-up device and stop to take;Step display: show test results on the screen of picture pick-up device.
- 2. exposure method of testing as claimed in claim 1 is characterized in that, behind described picture pick-up device photographic images, takes the brightness value autostore of gained image in the register of picture pick-up device.
- 3. exposure method of testing as claimed in claim 1, it is characterized in that, described controllable light source device comprises main control chip and display device, and described main control chip control display device carries out different brightness according to the order of the display brightness in the selected control data and shows.
- 4. exposure method of testing as claimed in claim 1 is characterized in that, described comparative analysis result refers to deduct with brightness value after the exposure absolute value of the difference that brightness value obtains before the corresponding exposure.
- 5. exposure method of testing as claimed in claim 1 is characterized in that, described as a result determining step comprises:In the time of in the interval corresponding comparative analysis range of results of the residing brightness value of comparative analysis result brightness value before exposure that brightness value is corresponding before exposing, judge that described comparative analysis result meets established rule, the residing brightness value of brightness value interval was to there being the comparative analysis range of results before described established rule referred to each exposure;When comparative analysis result corresponding to brightness value before the exposure in the interval corresponding comparative analysis range of results of the residing brightness value of brightness value the time, do not judge that described comparative analysis result does not meet established rule before exposure.
- One kind the exposure test macro, it is characterized in that this system comprises:Module one is set, is used for when the connectedness of picture pick-up device and controllable light source device is good, it is non-automatic exposure mode that picture pick-up device is set;The control store module, when the one group of different display brightness of control data that is used for corresponding controllable light source device shows, the control picture pick-up device is taken, and reads the front brightness value of the exposure of taking the gained image, and brightness value before each exposure is stored in the normative document;Module two is set, and this group that is used for choosing under non-automatic exposure mode is controlled display brightness corresponding to data and is shown that when complete, it is auto exposure mode that picture pick-up device is set;Control contrast module, be used for when from above-mentioned non-automatic exposure mode under controllable light source device when controlling on the same group the different display brightness of data and showing one by one, corresponding current display brightness control picture pick-up device is taken an image, and read brightness value after the exposure of taking the gained image, brightness value before the exposure corresponding in brightness value after this exposure and the described normative document is analyzed the comparative analysis result who obtains the front brightness value of this exposure;Judge module is used for judging whether described comparative analysis result meets established rule as a result;Stopping modular is used for when described comparative analysis result does not meet established rule, controls described picture pick-up device and stops to take;Described control contrast module, also being used for meeting established rule and this group in described comparative analysis result controls all display brightness of data and does not show when complete, the control picture pick-up device continues to take next image and is analyzed, until all display brightness that are somebody's turn to do in the group control data show complete;Display module is used for all display brightness in these group control data and shows when complete or after described picture pick-up device stops shooting, show test results on the screen of picture pick-up device.
- 7. exposure test macro as claimed in claim 6 is characterized in that, behind described picture pick-up device photographic images, takes the brightness value autostore of gained image in the register of picture pick-up device.
- 8. exposure test macro as claimed in claim 6, it is characterized in that, described controllable light source device comprises main control chip and display device, and described main control chip control display device carries out different brightness according to the order of the display brightness in the selected control data and shows.
- 9. exposure test macro as claimed in claim 6 is characterized in that, described comparative analysis result refers to deduct with brightness value after the exposure absolute value of the difference that brightness value obtains before the corresponding exposure.
- 10. exposure test macro as claimed in claim 6 is characterized in that, described as a result judge module judges by following step whether the comparative analysis result meets established rule:In the time of in the interval corresponding comparative analysis range of results of the residing brightness value of comparative analysis result brightness value before exposure that brightness value is corresponding before exposing, judge that described comparative analysis result meets established rule, the residing brightness value of brightness value interval was to there being the comparative analysis range of results before described established rule referred to each exposure;When comparative analysis result corresponding to brightness value before the exposure in the interval corresponding comparative analysis range of results of the residing brightness value of brightness value the time, do not judge that described comparative analysis result does not meet established rule before exposure.
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CN201110287643.5A CN103019026A (en) | 2011-09-26 | 2011-09-26 | Exposure testing method and exposure testing system |
TW100134898A TW201314350A (en) | 2011-09-26 | 2011-09-27 | Method and system for exposing test |
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CN201110287643.5A CN103019026A (en) | 2011-09-26 | 2011-09-26 | Exposure testing method and exposure testing system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106657994A (en) * | 2017-03-03 | 2017-05-10 | 深圳市金立通信设备有限公司 | Exposure testing method, control terminal, terminal to be tested, and exposure testing system |
CN106657801A (en) * | 2016-10-26 | 2017-05-10 | 浙江大华技术股份有限公司 | Video information acquiring method and apparatus |
CN108781280A (en) * | 2017-12-25 | 2018-11-09 | 深圳市大疆创新科技有限公司 | A kind of test method, device and terminal |
US10924684B2 (en) | 2016-10-26 | 2021-02-16 | Zhejiang Dahua Technology Co., Ltd. | Systems and methods for exposure control |
CN113824875A (en) * | 2021-08-11 | 2021-12-21 | 北京京仪仪器仪表研究总院有限公司 | Fruit and vegetable shooting method based on modulated light source brightness interval and shooting interval |
-
2011
- 2011-09-26 CN CN201110287643.5A patent/CN103019026A/en active Pending
- 2011-09-27 TW TW100134898A patent/TW201314350A/en unknown
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106657801A (en) * | 2016-10-26 | 2017-05-10 | 浙江大华技术股份有限公司 | Video information acquiring method and apparatus |
CN106657801B (en) * | 2016-10-26 | 2019-05-24 | 浙江大华技术股份有限公司 | A kind of video information acquisition method and device |
US10924684B2 (en) | 2016-10-26 | 2021-02-16 | Zhejiang Dahua Technology Co., Ltd. | Systems and methods for exposure control |
US11539897B2 (en) | 2016-10-26 | 2022-12-27 | Zhejiang Dahua Technology Co., Ltd. | Systems and methods for exposure control |
CN106657994A (en) * | 2017-03-03 | 2017-05-10 | 深圳市金立通信设备有限公司 | Exposure testing method, control terminal, terminal to be tested, and exposure testing system |
CN108781280A (en) * | 2017-12-25 | 2018-11-09 | 深圳市大疆创新科技有限公司 | A kind of test method, device and terminal |
WO2019126916A1 (en) * | 2017-12-25 | 2019-07-04 | 深圳市大疆创新科技有限公司 | Testing method and apparatus, and terminal |
CN108781280B (en) * | 2017-12-25 | 2020-08-04 | 深圳市大疆创新科技有限公司 | Test method, test device and terminal |
CN113824875A (en) * | 2021-08-11 | 2021-12-21 | 北京京仪仪器仪表研究总院有限公司 | Fruit and vegetable shooting method based on modulated light source brightness interval and shooting interval |
CN113824875B (en) * | 2021-08-11 | 2023-05-09 | 北京京仪仪器仪表研究总院有限公司 | Fruit and vegetable shooting method based on modulated light source brightness interval and shooting interval |
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