CN105306794B - Image acquiring method, image acquiring device and terminal - Google Patents
Image acquiring method, image acquiring device and terminal Download PDFInfo
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Abstract
The invention proposes a kind of image acquiring methods and a kind of image acquiring device, wherein, described image acquisition device includes focusing motor and imaging sensor, described image acquisition methods are used to obtain image by image acquiring device, it include: the exposure knots modification for obtaining the position change amount of the focusing motor, and obtaining described image sensor；Continuously change the position of the focusing motor with the position change amount, and preset times are continuously reached with the exposure value that the exposure knots modification changes described image sensor simultaneously；And storage change every time after acquired image, to obtain the multiple images of quantity identical as the preset times.According to the technical solution of the present invention, user is allow to view the over-exposed position of image and/or the details at dark place position, the user experience is improved.
Description
Technical field
The present invention relates to technical field of image processing, obtain in particular to a kind of image acquiring method, a kind of image
Device and a kind of terminal.
Background technique
Currently, generally only taking into account the focal length problem of image when carrying out image taking, there is no in view of for image
Over-exposed position and dark place position how to handle.However, it is desirable to it can be clearly seen that the details of image, exposure is normal and focuses
It is clearly essential two conditions, therefore, only takes into account the exposure that the focal length problem of image makes user that can not view image
The details at the excessive position of light and/or dark place position.
Therefore, how image is obtained so that user can view the over-exposed position and/or dark place position of image
Details becomes current urgent problem to be solved.
Summary of the invention
The present invention is based on above-mentioned technical problem, proposes a kind of new technical solution, user is allow to view figure
The over-exposed position of picture and/or the details at dark place position.
In view of this, an aspect of of the present present invention proposes a kind of image acquiring method, for being obtained by image acquiring device
Image is taken, described image acquisition device includes focusing motor and imaging sensor, and described image acquisition methods include: described in acquisition
The position change amount of focusing motor, and obtain the exposure knots modification of described image sensor；Continuously changed with the position change amount
Become the position of the focusing motor, and is continuously reached simultaneously with the exposure value that the exposure knots modification changes described image sensor
Preset times；And storage change every time after acquired image, to obtain the multiple of quantity identical as the preset times
Image.
In the technical scheme, continuous to change while continuously changing the position of focusing motor continuously to adjust focal length
The exposure value of imaging sensor reaches preset times, to obtain the multiple images of quantity identical as preset times, makes user in this way
Suitable image can be selected over-exposed to view in the different image of multiple focal lengths and exposure value according to self-demand
The details at position and/or dark place position.
In the above-mentioned technical solutions, it is preferable that further include: described multiple images synthesis is handled as final image.
In the prior art, there are many algorithms, and image merging may be implemented, for example common difference shadow method, this method can lead to
It crosses and point-to-point operation (add, subtract, multiply and/or remove) is carried out to merge to image to each image for participating in synthesis, and energy
Enough have the function that reduce random noise.
In the technical scheme, the different image of the multiple focal lengths and exposure value that will acquire is synthesized, meeting after synthesis
Obtain the image that exposure effect and focal length are all optimal.By the technical solution, the available image to high quality is promoted
User experience.
In the above-mentioned technical solutions, it is preferable that when receiving the topography's order checked on the final image, from
The image corresponding to exposure and optimal topography of focusing is found out in the described multiple images stored.
In the technical scheme, user, can be by choosing the part on the image when checking the image finally synthesized
Image obtains the optimal image of effect of the local location, i.e., user click overexposure position/dark place position on final image/
When other positions, position can be clicked by searching to correspond to from the multiple images of acquisition, brightness is normal, focusing is clearly schemed
As being shown, so that user checks the details at the position.
In the above-mentioned technical solutions, it is preferable that the position for continuously changing the focusing motor with the position change amount
The step of setting includes: to make current location of the position of the focusing motor when focusing motor starts in the same direction
On continuously change the position change amount and reach the preset times.
In the technical scheme, the position for continuously changing focusing motor in the same direction reaches preset times, that is,
On the direction advanced or retreated, every time by the position change position change amount of focusing motor, continuously change preset times, it can
To get the image different with the equal number of focal length of preset times, so that user chooses required part in these images
Position the most clearly image, to check the details of the local location.
In the above-mentioned technical solutions, it is preferable that described that described image sensor is continuously changed with the exposure knots modification
Exposure value reach the step of preset times include: make the exposure value of described image sensor from described image sensor start when
Current exposure value, which starts to increase continuously or reduce the exposure knots modification, reaches the preset times.
In the technical scheme, it increases continuously or reduces exposure knots modification and reach preset times, it is available to arrive and preset
The different image of the equal number of exposure value of number, so that user chooses required local location brightness the most in these images
Normal image, to check the details of the local location.
Another aspect of the present invention proposes a kind of image acquiring device, for obtaining image, including focusing motor and figure
As sensor, further includes: acquiring unit for obtaining the position change amount of the focusing motor, and obtains described image sensing
The exposure knots modification of device；Execution unit changes the position of the focusing motor continuously with the position change amount, and continuous simultaneously
Reach preset times with the exposure value that the exposure knots modification changes described image sensor；Storage unit, for storing every time
Acquired image after change, to obtain the multiple images of quantity identical as the preset times.
In the technical scheme, continuous to change while continuously changing the position of focusing motor continuously to adjust focal length
The exposure value of imaging sensor reaches preset times, to obtain the multiple images of quantity identical as preset times, makes user in this way
Suitable image can be selected over-exposed to view in the different image of multiple focal lengths and exposure value according to self-demand
The details at position and/or dark place position.
In the above-mentioned technical solutions, it is preferable that further include: synthesis unit, for being by described multiple images synthesis processing
Final image.
In the technical scheme, the different image of the multiple focal lengths and exposure value that will acquire is synthesized, meeting after synthesis
Obtain the image that exposure effect and focal length are all optimal.By the technical solution, the available image to high quality is promoted
User experience.
In the above-mentioned technical solutions, it is preferable that further include: searching unit, for checking the final image receiving
On topography's order when, found out from the described multiple images stored corresponding to exposure and optimal Local map of focusing
The image of picture.
In the technical scheme, user, can be by choosing the part on the image when checking the image finally synthesized
Image obtains the optimal image of effect of the local location, i.e., user click overexposure position/dark place position on final image/
When other positions, position can be clicked by searching to correspond to from the multiple images of acquisition, brightness is normal, focusing is clearly schemed
As being shown, so that user checks the details at the position.
In the above-mentioned technical solutions, it is preferable that the execution unit includes: position change unit, for making the focusing
The position of motor continuously changes the position change the current location when focusing motor starts in the same direction
Amount reaches the preset times.
In the technical scheme, the position for continuously changing focusing motor in the same direction reaches preset times, that is,
On the direction advanced or retreated, every time by the position change position change amount of focusing motor, continuously change preset times, it can
To get the image different with the equal number of focal length of preset times, so that user chooses required part in these images
Position the most clearly image, to check the details of the local location.
In the above-mentioned technical solutions, it is preferable that the execution unit further include: exposure value changes unit, described for making
The exposure is increased continuously or reduced current exposure value of the exposure value of imaging sensor when described image sensor starts
Light knots modification reaches the preset times.
In the technical scheme, it increases continuously or reduces exposure knots modification and reach preset times, it is available to arrive and preset
The different image of the equal number of exposure value of number, so that user chooses required local location brightness the most in these images
Normal image, to check the details of the local location.
Another aspect of the invention proposes a kind of terminal, includes that image as described in the above technical scheme obtains dress
It sets.Therefore, the whole beneficial effects for the image acquiring device which there is above-mentioned technical proposal to provide, details are not described herein.
By above technical scheme, allow user view image over-exposed position and/or dark place position it is thin
Section, and synthesize and obtain the image of high quality, the user experience is improved.
Detailed description of the invention
Fig. 1 shows the schematic flow diagram of the image acquiring method of embodiment according to the present invention；
Fig. 2 shows the schematic flow diagrams of image acquiring method according to an embodiment of the invention；
Fig. 3 A and Fig. 3 B show the schematic diagram that image acquiring method according to an embodiment of the invention obtains image；
Fig. 4 shows the schematic block diagram of the image acquiring device of embodiment according to the present invention；
Fig. 5 shows the schematic block diagram of the terminal of embodiment according to the present invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the schematic flow diagram of the image acquiring method of embodiment according to the present invention.
As shown in Figure 1, the image acquiring method of embodiment according to the present invention, comprising:
Step 102, the position change amount of focusing motor is obtained, and obtains the exposure knots modification of imaging sensor.
Step 104, continuously change the position of focusing motor with position change amount, and simultaneously continuously to expose knots modification change
The exposure value of imaging sensor reaches preset times.
Step 106, acquired image after storage changes every time, to obtain multiple figures of quantity identical as preset times
Picture.
In the technical scheme, continuous to change while continuously changing the position of focusing motor continuously to adjust focal length
The exposure value of imaging sensor reaches preset times, to obtain the multiple images of quantity identical as preset times, makes user in this way
Suitable image can be selected over-exposed to view in the different image of multiple focal lengths and exposure value according to self-demand
The details at position and/or dark place position.
In the above-mentioned technical solutions, it is preferable that further include: step 108, multiple images synthesis is handled as final image.
In the technical scheme, the different image of the multiple focal lengths and exposure value that will acquire is synthesized, meeting after synthesis
Obtain the image that exposure effect and focal length are all optimal.By the technical solution, the available image to high quality is promoted
User experience.
In the above-mentioned technical solutions, it is preferable that when receiving the topography's order checked on final image, Cong Suocun
The image corresponding to exposure and optimal topography of focusing is found out in the multiple images of storage.
In the technical scheme, user, can be by choosing the part on the image when checking the image finally synthesized
Image obtains the optimal image of effect of the local location, i.e., user click overexposure position/dark place position on final image/
When other positions, position can be clicked by searching to correspond to from the multiple images of acquisition, brightness is normal, focusing is clearly schemed
As being shown, so that user checks the details at the position.
In the above-mentioned technical solutions, it is preferable that step 104 includes: when starting the position of focusing motor from focusing motor
Current location start continuously to change position change amount in the same direction and reach preset times.
In the technical scheme, the position for continuously changing focusing motor in the same direction reaches preset times, that is,
On the direction advanced or retreated, every time by the position change position change amount of focusing motor, continuously change preset times, it can
To get the image different with the equal number of focal length of preset times, so that user chooses required part in these images
Position the most clearly image, to check the details of the local location.
In the above-mentioned technical solutions, it is preferable that step 104 further include: make the exposure value of imaging sensor from image sensing
Current exposure value when device starts, which starts to increase continuously or reduces, to expose knots modification and reaches preset times.
In the technical scheme, it increases continuously or reduces exposure knots modification and reach preset times, it is available to arrive and preset
The different image of the equal number of exposure value of number, so that user chooses required local location brightness the most in these images
Normal image, to check the details of the local location.
Fig. 2 shows the schematic flow diagrams of image acquiring method according to an embodiment of the invention.
As shown in Fig. 2, image acquiring method according to an embodiment of the invention, comprising:
Step 202, camera shutter is pressed, is taken pictures.
Step 204, position and the current exposure value of focusing motor are initialized.
Step 206, increase the exposure value E of setting on current exposure value, while on the basis of the position of present motor
Mobile focusing motor M step.Change the position of focusing motor while changing the exposure value of imaging sensor.
Step 208, image is grabbed.Image after obtaining exposure value and focal distance fluctuation.
Step 210, judge whether that completing T image-capture enters step 212 when the judgment result is yes, otherwise, returns
Return step 206.T is pre-determined number, and the position for changing focusing motor while changing the exposure value of imaging sensor reaches pre-
Determine number, multiple available exposure values image different with focal length.
Step 212, T images are synthesized to obtain final image.The different figure of the multiple focal lengths and exposure value that will acquire
As being synthesized, the image that exposure effect and focal length are all optimal can be obtained after synthesis, the user experience is improved.
Step 214, any part (overexposure position/dark place position/other positions) in image is clicked.
Step 216, all correct image of the exposure for being clicked position and focal length is showed.User is set to pass through choosing in this way
Taking overexposure position/dark place position/other positions on final image, the brightness at the position is normal, focuses and clearly schemes to obtain
Picture, so that user checks the details at the position.
Fig. 3 A and Fig. 3 B show showing for the image that image acquiring method according to an embodiment of the invention is got
It is intended to.
As shown in Figure 3A, six exposures are successively shot from secretly to bright and different focal length image, by specific
Algorithm (such as difference shadow method) synthesizes six images, the final image after being synthesized.
In the technical scheme, the different image of the multiple focal lengths and exposure value that will acquire is synthesized, meeting after synthesis
Obtain the image that exposure effect and focal length are all optimal, it can get the image of high quality, the user experience is improved.
As shown in Figure 3B, when checking the final image after synthesizing, overexposure position is clicked, shows and is clicked in six images
Overexposure position exposure value and the most normal image of focusing；Click dark place position, show be clicked in six images it is dark
Locate position exposure value and most normal image of focusing.
Fig. 4 shows the schematic block diagram of the image acquiring device of embodiment according to the present invention.
As shown in figure 4, the image acquiring device 400 of embodiment according to the present invention, comprising: acquiring unit 402, for obtaining
The position change amount of focusing motor is taken, and obtains the exposure knots modification of imaging sensor；Execution unit 404, is continuously changed with position
Variable changes the position of focusing motor, and is continuously reached default time with exposing the exposure value of knots modification change imaging sensor simultaneously
Number；Storage unit 406, for store change every time after acquired image, to obtain the more of quantity identical as preset times
A image.
In the technical scheme, continuous to change while continuously changing the position of focusing motor continuously to adjust focal length
The exposure value of imaging sensor reaches preset times, to obtain the multiple images of quantity identical as preset times, makes user in this way
Suitable image can be selected over-exposed to view in the different image of multiple focal lengths and exposure value according to self-demand
The details at position and/or dark place position.
In the above-mentioned technical solutions, it is preferable that further include: synthesis unit 408, for being most by multiple images synthesis processing
Whole image.
In the technical scheme, the different image of the multiple focal lengths and exposure value that will acquire is synthesized, meeting after synthesis
Obtain the image that exposure effect and focal length are all optimal.By the technical solution, the available image to high quality is promoted
User experience.
In the above-mentioned technical solutions, it is preferable that further include: searching unit 410, for checking final image receiving
Topography's order when, found out from the multiple images stored corresponding to exposure and optimal topography of focusing figure
Picture.
In the technical scheme, user, can be by choosing the part on the image when checking the image finally synthesized
Image obtains the optimal image of effect of the local location, i.e., user click overexposure position/dark place position on final image/
When other positions, position can be clicked by searching to correspond to from the multiple images of acquisition, brightness is normal, focusing is clearly schemed
As being shown, so that user checks the details at the position.
In the above-mentioned technical solutions, it is preferable that execution unit 404 includes: position change unit 4042, for making horse of focusing
Continuously change position change amount in the same direction current location of the position reached when focusing motor starts and reaches default
Number.
In the technical scheme, the position for continuously changing focusing motor in the same direction reaches preset times, that is,
On the direction advanced or retreated, every time by the position change position change amount of focusing motor, continuously change preset times, it can
To get the image different with the equal number of focal length of preset times, so that user chooses required part in these images
Position the most clearly image, to check the details of the local location.
In the above-mentioned technical solutions, it is preferable that execution unit 404 further include: exposure value changes unit 4044, for making figure
As sensor exposure value since imaging sensor start when current exposure value increase continuously or reduce expose knots modification reach
To preset times.
In the technical scheme, it increases continuously or reduces exposure knots modification and reach preset times, it is available to arrive and preset
The different image of the equal number of exposure value of number, so that user chooses required local location brightness the most in these images
Normal image, to check the details of the local location.
Fig. 5 shows the schematic block diagram of the terminal of embodiment according to the present invention.
As shown in figure 5, the terminal 500 of embodiment according to the present invention, comprising: image acquiring device 502 (is equivalent to above-mentioned
Image acquiring device 400), image acquiring device 502 can continuously change focusing motor position continuously to adjust focal length
While, the continuous exposure value for changing imaging sensor reaches preset times, to obtain the multiple of quantity identical as preset times
Image, and multiple images synthesis is handled as final image.
By the technical solution, user can obtain multiple images synthesis in terminal 500, and treated that effect is optimal
Final image, when the user clicks when required position on final image, terminal 500 can obtain more in image acquiring device 502
Select the optimal image of the effect of the position to be presented to the user in a image, so as to user check overexposure position/dark place position/
The details at other positions.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, makes user can
It to view the over-exposed position of image and/or the details at dark place position, and synthesizes and obtains the image of high quality, improve use
Family experience.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of image acquiring method, for obtaining image by image acquiring device, described image acquisition device includes focusing
Motor and imaging sensor characterized by comprising
The position change amount of the focusing motor is obtained, and obtains the exposure knots modification of described image sensor；
Continuously change the position of the focusing motor with the position change amount, and simultaneously continuously with exposure knots modification change
The exposure value of described image sensor reaches preset times；And
Storage image acquired after changing every time, to obtain the multiple images of quantity identical as the preset times；
Described multiple images synthesis is handled as final image；
When receiving the topography's order checked on the final image, found out from the described multiple images stored
Corresponding to exposing and the image for optimal topography of focusing.
2. image acquiring method according to claim 1, which is characterized in that described continuously with position change amount change
The step of position of the focusing motor includes:
Make continuously to change in the same direction current location of the position of the focusing motor when focusing motor starts
Become the position change amount and reaches the preset times.
3. image acquiring method according to claim 1, which is characterized in that described continuously with exposure knots modification change
The step of exposure value of described image sensor reaches preset times include:
Make the exposure value of described image sensor since described image sensor start when current exposure value increase continuously or
It reduces the exposure knots modification and reaches the preset times.
4. a kind of image acquiring device, for obtaining image, including focusing motor and imaging sensor, which is characterized in that also wrap
It includes:
Acquiring unit, for obtaining the position change amount of the focusing motor, and the exposure for obtaining described image sensor changes
Amount；
Execution unit changes the position of the focusing motor continuously with the position change amount, and simultaneously continuously with the exposure
The exposure value that knots modification changes described image sensor reaches preset times；
Storage unit, for store change every time after acquired image, to obtain quantity identical as the preset times
Multiple images；
Synthesis unit, for handling described multiple images synthesis for final image；
Searching unit is described more from what is stored for when receiving the topography's order checked on the final image
The image corresponding to exposure and optimal topography of focusing is found out in a image.
5. image acquiring device according to claim 4, which is characterized in that the execution unit includes:
Position change unit, for make current location of the position of the focusing motor when focusing motor starts
Continuously change the position change amount on the same direction and reaches the preset times；
Exposure value changes unit, current exposure when for starting the exposure value of described image sensor from described image sensor
Light value, which starts to increase continuously or reduce the exposure knots modification, reaches the preset times.
6. a kind of terminal, which is characterized in that including image acquiring device as described in claim 4 or 5.
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| US8497920B2 (en) * | 2008-06-11 | 2013-07-30 | Nokia Corporation | Method, apparatus, and computer program product for presenting burst images |
| CN103188434B (en) * | 2011-12-31 | 2017-05-24 | 联想(北京)有限公司 | Method and device of image collection |
| CN103491308A (en) * | 2013-10-10 | 2014-01-01 | 珠海市魅族科技有限公司 | Method and terminal for acquiring image data |
| CN103561205B (en) * | 2013-11-15 | 2015-07-08 | 努比亚技术有限公司 | Shooting method and shooting device |
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