CN107743224A - The dirty based reminding method of camera lens, system, readable storage medium storing program for executing and mobile terminal - Google Patents
The dirty based reminding method of camera lens, system, readable storage medium storing program for executing and mobile terminal Download PDFInfo
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- CN107743224A CN107743224A CN201710917187.5A CN201710917187A CN107743224A CN 107743224 A CN107743224 A CN 107743224A CN 201710917187 A CN201710917187 A CN 201710917187A CN 107743224 A CN107743224 A CN 107743224A
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- Prior art keywords
- camera lens
- dirty
- value
- target
- prompting
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
Abstract
The present invention provides a kind of camera lens dirty based reminding method, system, readable storage medium storing program for executing and mobile terminal, and methods described includes：The target gray value of predeterminable area in current taken image is obtained, the current taken image is via the lens shooting；Obtain the target light exposure value in the current taken image；Judge whether the target gray value is located at corresponding to the target light exposure value in the range of gray threshold；If it is not, prompting is then sent, it is dirty to remind camera lens described in user to exist.Camera lens among the present invention dirty based reminding method, system, readable storage medium storing program for executing and mobile terminal, can automatic identification camera lens with the presence or absence of dirty, and can exist it is dirty in the case of, automatically prompting user, so that user is without frequently checking whether camera lens is dirty, experience, and accuracy of identification is high.
Description
Technical field
The present invention relates to a kind of dirty based reminding method of camera lens, system, readable storage medium storing program for executing and mobile terminal.
Background technology
With the continuous improvement of people's living standards, mobile terminal is constantly being popularized, such as mobile phone, flat board, computer, take the photograph
Camera etc..Current almost all of smart machine is all integrated with pick-up lens, to realize the camera function of the equipment.
Some electronics firms at present, often receive the bad throwing of effect of taking pictures for the mobile terminal that user produces to it
Tell, among these complaints, a big chunk reason be due to exist on camera lens it is dirty caused by, and not camera lens
There is problem in quality, great puzzlement is caused to user and manufacturer.
Above-mentioned in order to solve the problems, such as among prior art, manufacturer generally informs that user pays attention to cleaning camera lens at any time
On it is dirty so that user must not infrequently check whether camera lens dirty, cause poor user experience, while artificially exist to camera lens
Dirty differentiation, inaccurate, low precision.
The content of the invention
Based on this, it is an object of the invention to provide a kind of dirty based reminding method of camera lens, system, readable storage medium storing program for executing and shifting
Dynamic terminal, it is whether dirty with automatic decision camera lens, so as to realize when camera lens has dirty, automatically prompting user.
A kind of dirty based reminding method of camera lens according to embodiments of the present invention, including：
The target gray value of predeterminable area in current taken image is obtained, the current taken image is clapped via the camera lens
Take the photograph to obtain；
Obtain the target light exposure value of the current taken image；And
Judge whether the target gray value is located at corresponding to the target light exposure value in the range of gray threshold；
If it is not, prompting message is then sent, it is dirty to remind camera lens described in user to exist.
In addition, the based reminding method that a kind of camera lens according to the above embodiment of the present invention is dirty, can also have following additional
Technical characteristic：
Further, the predeterminable area is hair zones, the target for obtaining predeterminable area in current taken image
The step of gray value, includes：
According to face recognition algorithms, the hair zones in the current taken image are extracted；
The gray value of each pixel in the hair zones is subjected to mean value calculation, to obtain the target gray
Value.
Further, it is described to judge whether the target gray value is located at gray threshold model corresponding to the target light exposure value
Step in enclosing includes：
According to the target light exposure value, the gray threshold corresponding with the target light exposure value is inquired about among mapping table
Scope；
Judge the target gray value whether in the range of the gray threshold.
Further, before the camera lens dispatches from the factory, in addition to：
The test image for the preset number that the camera lens is shot under multiple photographed scenes is obtained respectively；
Obtain respectively every test image exposure value and every test image described in predeterminable area ash
Angle value, to obtain camera lens ash of the exposure value scope of shooting image and the predeterminable area under each photographed scene
Angle value scope；
Using the intensity value ranges as the gray threshold scope corresponding to the exposure value scope, and together as pair
The information for the photographed scene answered is pre-stored among the mapping table.
Further, the camera lens is installed on mobile terminal, and described the step of sending prompting message includes：
Default prompting message is obtained, and the default prompting message is shown in the mobile terminal in a manner of playing frame
On display screen.
Further, triggering is provided with the prompting frame where the default prompting message and shows icon, described by described in
Default prompting message is shown in a manner of playing frame after the step on the display screen of the mobile terminal, in addition to：
When receiving the triggering and showing the click signal of icon, dirty processing information is obtained, and by the dirty place
Presentation of information is managed in the lower section of the default prompting message, the dirty processing information includes being used to instruct user to the camera lens
The dirty operating procedure handled；
The size of the prompting frame is adjusted, so that the dirty processing information is shown in the prompting frame.
Further, also include after described the step of sending prompting message：
The time of the currently transmitted prompting message is recorded, and is calculated away from the last time for sending the prompting message
Interval；
The prompting message is sent automatically at interval of the time interval.
A kind of dirty system for prompting of camera lens according to embodiments of the present invention, including：
Gray value acquisition module, for obtaining the target gray value of predeterminable area in current taken image, the current bat
Image is taken the photograph to obtain via the lens shooting；
Exposure value acquisition module, for obtaining the target light exposure value in the current taken image；
Gray value judge module, for judging whether the target gray value is located at gray scale corresponding to the target light exposure value
In threshold range；And
Prompting module, for when determining the target gray value not in the range of the gray threshold, sending and carrying
Awake information, it is dirty to remind camera lens described in user to exist.
The present invention also proposes a kind of computer-readable recording medium, is stored thereon with computer program, the program is processed
Device realizes the dirty based reminding method of camera lens described above when performing.
The present invention also proposes a kind of mobile terminal, including memory, processor and storage on a memory and can located
The computer program that runs on reason device, camera lens described above dirty prompting side is realized during the computing device described program
Method.
The dirty based reminding method of above-mentioned camera lens, system, readable storage medium storing program for executing and mobile terminal, by pre-setting each bat
Take the photograph under scene, camera lens without it is dirty when shooting image in predeterminable area gray threshold scope, and in real time obtain camera lens current shooting
The target light exposure value of image and the target gray value of predeterminable area, and match by target light exposure value the current shooting of camera lens
Scene, and according to present filming scene come obtain camera lens without it is dirty when shooting image gray threshold scope, then judge target
Gray value, if then representing camera lens without dirty, does not send prompting, if otherwise representing mirror whether in the range of the gray threshold of acquisition
Head exists dirty, and sends prompting automatically, exists with automatically prompting user camera lens dirty.Therefore the dirty prompting side of the camera lens
Method, system, readable storage medium storing program for executing and mobile terminal, its can automatic identification camera lens with the presence or absence of dirty, and can recognize
When having dirty, automatically prompting user so that user is without frequently checking whether camera lens is dirty, experiences, and accuracy of identification is high.
Brief description of the drawings
Fig. 1 is the flow chart of the dirty based reminding method of the camera lens in first embodiment of the invention；
Fig. 2 is the flow chart of the dirty based reminding method of the camera lens in second embodiment of the invention；
Fig. 3 is the illustration figure that prompting message bullet frame is shown in second embodiment of the invention；
Fig. 4 is the illustration figure that dirty processing information is shown in second embodiment of the invention；
Fig. 5 is the flow chart of the dirty based reminding method of the camera lens in third embodiment of the invention；
Fig. 6 is the structural representation of the dirty system for prompting of the camera lens in fourth embodiment of the invention.
Main element symbol description：
| Gray value acquisition module | 11 | Exposure value acquisition module | 12 |
| Gray value judge module | 13 | Prompting module | 14 |
| Hair zones extraction unit | 111 | Gray value acquiring unit | 112 |
| Reminding unit | 141 | Hiding information display unit | 142 |
| Prompting frame adjustment unit | 143 | Time computing module | 18 |
| Threshold range query unit | 131 | Gray value judging unit | 132 |
| Test image acquisition module | 15 | Test image processing module | 16 |
| Pre-storing module of information | 17 |
Detailed description below will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give some embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Referring to Fig. 1, the based reminding method that the camera lens showing in first embodiment of the invention is dirty, including step S01 is extremely
Step S03.
Step S01, by lens shooting image, and obtain the target gray value of predeterminable area in current taken image.
Wherein, the predeterminable area is to pre-set the designated area for the dirty discriminance analysis of camera lens, in this implementation
In example, what camera lens was carried out is the image taking of head part, and the designated area can be face area, hair zones etc..When selected
When hair zones are as the predeterminable area, in each shooting image, hair zones are acquired target gray value, for
Follow-up dirty discriminance analysis.In other embodiments, target gray value can also be by inquiring about the information of shooting image
Means and obtain.
Step S02, obtain the target light exposure value in the current taken image.
Wherein, exposure value can be obtained by existing image processing algorithm.In some embodiments, exposure value can also
Obtained by the means for the information for inquiring about shooting image.
Step S03, judges whether the target gray value is located at corresponding to the target light exposure value in the range of gray threshold.
Wherein, under photographed scene corresponding to the target light exposure value, the gray threshold scope be camera lens without it is dirty when
The normal fluctuation range of predeterminable area gray value described in shooting image.
It is pointed out that exposure value directly reflects the photographed scene of shooting image, and different photographed scenes (as it is outdoor,
Interior, half-light etc.) under in the image shot, there is some difference for the intensity value ranges of the predeterminable area.It is just because of specific
Certain corresponding relation be present between exposure value and intensity value ranges under photographed scene, by the target light exposure value can with
The photographed scene of the current taken image is fitted on, and then obtains the gray threshold scope corresponding to the photographed scene.
When it is implemented, can before dispatching from the factory or confirm camera lens it is spotless in the case of, can beforehand through experiment distinguish
The exposure value for every image that the camera lens is shot under different photographed scenes and the gray value of the predeterminable area are gathered, with
To the camera lens under each photographed scene the intensity value ranges of the particular exposure value scope of shooting image and the predeterminable area,
Dirty due to being not present before dispatching from the factory, on the camera lens, the intensity value ranges of acquisition are to be shot under corresponding photographed scene
The gray value normal fluctuation range of predeterminable area described in image, then using the intensity value ranges as corresponding to photographed scene
Gray threshold scope, and be together pre-stored with corresponding exposure value scope.
Therefore, by whether judging the target gray value corresponding to the target light exposure value in the range of gray threshold,
It can judge the camera lens currently with the presence or absence of dirty.
Wherein, it is located at the ash corresponding to the target light exposure value when the step S03 determines the target gray value
When spending in threshold range, the camera lens is represented without dirty, then continues to monitor, when the step S03 determines the target gray
When value is not located at corresponding to the target light exposure value in the range of the gray threshold, representing the camera lens has dirty, then performs step
Rapid S04.
Step S04, sends prompting message, dirty to remind camera lens described in user to exist.
Wherein, the mode that sends of the prompting message includes but is not limited to play frame and shows, language report, SMS notification, shakes
Dynamic prompting etc..
To sum up, the dirty based reminding method of camera lens among the above embodiment of the present invention, by pre-setting each shooting field
Under scape, camera lens without it is dirty when shooting image in predeterminable area gray threshold scope, and in real time obtain camera lens current taken image
Target light exposure value and predeterminable area target gray value, and the current of current taken image is matched by target light exposure value
Photographed scene, and according to present filming scene come obtain camera lens without it is dirty when shooting image gray threshold scope, then judge
Target gray value, if then representing camera lens without dirty, does not send prompting, if otherwise generation whether in the range of the gray threshold of acquisition
Camera lens exists dirty, and sends prompting automatically, exists with automatically prompting user camera lens dirty.Therefore the dirty prompting of the camera lens
Method, its can automatic identification camera lens with the presence or absence of dirty, and can recognize have dirty when, automatically prompting user, make
User is obtained without frequently check whether camera lens is dirty, experiences, and accuracy of identification is high.
Referring to Fig. 2, the based reminding method that the camera lens showing in second embodiment of the invention is dirty, the camera lens is installed on
Among mobile terminal, the dirty based reminding method of the camera lens includes step S11 to step S17.
Step S11, according to face recognition algorithms, extract the hair zones in current taken image.
Wherein, the current taken image obtains via the lens shooting.
Among the present embodiment, using the hair zones analyzed area dirty as follow-up camera lens, it is to be understood that,
This, which is not represented, is defined and can only can also be used using hair zones as analyzed area, such as among other embodiments
Area of skin color is as analyzed area.
Step S12, the gray value of each pixel in the hair zones is subjected to mean value calculation, to obtain target ash
Angle value.
Step S13, obtain the target light exposure value in the current taken image.
Step S14, according to the target light exposure value, gray scale corresponding with the target light exposure value is inquired about among mapping table
Threshold range.
Wherein, the gray threshold scope be the camera lens without it is dirty when in photographed scene corresponding to the target light exposure value
Under, the gray value normal fluctuation range of hair zones in shooting image.
When it is implemented, before camera lens dispatches from the factory, the dirty based reminding method of the camera lens can also include：
The test image for the preset number that the camera lens is shot under multiple photographed scenes is obtained respectively；
The exposure value of every test image and the gray value of hair zones in every test image are obtained respectively,
To obtain the camera lens exposure value scope of shooting image and intensity value ranges of hair zones under each photographed scene；
Using the intensity value ranges as the gray threshold scope corresponding to the exposure value scope, and together as pair
The information for the photographed scene answered is pre-stored among the mapping table.
Therefore, specifically, according to the target light exposure value, inquired about among mapping table corresponding with the target light exposure value
The step of gray threshold scope, can follow the steps below specific implementation：First, inquire about and include among the mapping table
The target light exposure value scope of the target light exposure value, then inquired about among the mapping table corresponding with the target light exposure value scope
Gray threshold scope, so as to get gray threshold scope corresponding to the target light exposure value.
It should be understood that before the camera lens dispatches from the factory, the mapping table can be stored among the mobile terminal,
In order to inquire about gray threshold scope subsequently directly on the mapping table.
Step S15, judge the target gray value whether in the range of the gray threshold.
When the step S15, which determines the target gray value, to be located in the range of the gray threshold, then be failure to actuate after
Continuous monitoring, when the step S15 determines the target gray value not in the range of the gray threshold, represent the mirror
Head exist it is dirty, then perform step S16 to step S18.
Step S16, default prompting message is obtained, and the default prompting message is shown in the shifting in a manner of playing frame
On the display screen of dynamic terminal.
Among the present embodiment, prompting message is sent by the way of playing frame and showing, will the default prompting message
Generation is together shown on the display screen of the mobile terminal among prompting frame.
Wherein, triggering is provided with the prompting frame where the default prompting message and shows icon (prompting frame bottom right in such as Fig. 3
The arrow of side).
Fig. 3 is refer to, show a kind of design sketch that prompting message bullet frame is shown among the present embodiment.
Step S17, when receiving the triggering and showing the click signal of icon, obtain dirty processing information, and by institute
The lower section that dirty processing information is shown in the default prompting message is stated, the dirty processing information includes being used to instruct user couple
The dirty operating procedure handled of the camera lens.
Step S18, the size of the prompting frame is adjusted, so that the dirty processing information is shown in the prompting frame.
It should be understood that the border point coordinates by obtaining the dirty processing information, then sits according to these boundary points
Mark adjusts the border point coordinates of the prompting frame to correspond to, so that the boundary point coordinate of the dirty processing information carries positioned at described
Within the border of awake frame, so as to realize that the size of the prompting frame adjusts.
Fig. 4 is refer to, show a kind of design sketch of the display dirty processing information among the present embodiment.
The prompting dirty compared to the camera lens among first embodiment of the dirty based reminding method of camera lens among the present embodiment
Method, also have and be processed as the dirty Operating Guideline of camera lens and remind, can be more professional instruct user to camera lens at
Reason, further increasing experience sense.
Referring to Fig. 5, the based reminding method that the camera lens showing in third embodiment of the invention is dirty, the camera lens is installed on
Among mobile terminal, the dirty based reminding method of the camera lens includes step S21 to step S27.
Step S21, according to face recognition algorithms, extract the hair zones in current taken image.
Wherein, the current taken image obtains via the lens shooting.
Step S22, the gray value of each pixel in the hair zones is subjected to mean value calculation, to obtain the mesh
Mark gray value.
Step S23, obtain the target light exposure value in the current taken image.
Step S24, according to the target light exposure value, inquired about among mapping table corresponding with the target light exposure value described
Gray threshold scope.
Wherein, the gray threshold scope be the camera lens without it is dirty when in photographed scene corresponding to the target light exposure value
Under, the gray value normal fluctuation range of hair zones in shooting image.
When it is implemented, before the camera lens dispatches from the factory, the dirty based reminding method of the camera lens also includes：
The test image for the preset number that the camera lens is shot under multiple photographed scenes is obtained respectively；
The exposure value of every test image and the gray value of hair zones in every test image are obtained respectively,
To obtain the camera lens exposure value scope of shooting image and intensity value ranges of hair zones under each photographed scene；
Using the intensity value ranges as the gray threshold scope corresponding to the exposure value scope, and together as pair
The information for the photographed scene answered is pre-stored among the mapping table.
Step S25, judge the target gray value whether in the range of the gray threshold.
Wherein, when the step S25, which determines the target gray value, to be located in the range of the gray threshold, then continue
Monitoring, when the step S25 determines the target gray value not in the range of the gray threshold, then perform step
S26 to step S28.
Step S26, sends prompting message, dirty to remind camera lens described in user to exist.
Wherein, the mode that sends of the prompting message includes but is not limited to play frame and shows, language report, SMS notification, shakes
Dynamic prompting etc..
Step S27, records the time of the currently transmitted prompting message, and calculates and send the prompting letter away from the last time
The time interval of breath；
Step S28, the prompting message is sent automatically at interval of the time interval.
Wherein, described the step of sending the prompting automatically at interval of the time interval is described to be carried from currently transmitted
From the awake time, the prompting message is just sent automatically every a time interval, with timed reminding user to the mirror
Head is cleared up.
The prompting dirty compared to the camera lens among first embodiment of the dirty based reminding method of camera lens among the present embodiment
Method, it also has the beneficial effect that timed reminding user is cleared up the camera lens.
Another aspect of the present invention also provides a kind of camera lens dirty system for prompting, described to refer to Fig. 6, show the present invention
The dirty system for prompting of camera lens in fourth embodiment, including：
Gray value acquisition module 11, it is described current for obtaining the target gray value of predeterminable area in current taken image
Shooting image obtains via the lens shooting；
Exposure value acquisition module 12, obtain the target light exposure value in the current taken image；
Gray value judge module 13, for judging the target gray value whether positioned at ash corresponding to the target light exposure value
Spend in threshold range；
Prompting module 14, it is not located at gray scale threshold corresponding to the target light exposure value for the target gray value ought to be determined
When in the range of value, prompting message is sent, it is dirty to remind camera lens described in user to exist.
Further, the predeterminable area is hair zones, and the gray value acquisition module 11 includes：
Hair zones extraction unit 111, for according to face recognition algorithms, extracting described in the current taken image
Hair zones；
Gray value acquiring unit 112, based on the gray value of each pixel in the hair zones is carried out into average value
Calculate, to obtain the target gray value.
Further, the gray value judge module 13 includes：
Threshold range query unit 131, for according to the target light exposure value, being inquired about and the target among mapping table
The gray threshold scope corresponding to exposure value；
Gray value judging unit 132, judge the target gray value whether in the range of the gray threshold.
Further, before the camera lens dispatches from the factory, the dirty system for prompting of the camera lens also includes：
Test image acquisition module 15, the preset number shot for obtaining the camera lens respectively under multiple photographed scenes
Test image；
Test image processing module 16, for obtain respectively every test image exposure value and every test
The gray value of predeterminable area described in image, to obtain the exposure value of camera lens shooting image under each photographed scene
The intensity value ranges of scope and the predeterminable area；
Pre-storing module of information 17, for using the intensity value ranges as the gray scale threshold corresponding to the exposure value scope
It is worth scope, and together the information of the photographed scene is pre-stored among the mapping table as corresponding to.
Further, the camera lens is installed on mobile terminal, and the prompting module 14 includes：
Reminding unit 141, shown for obtaining default prompting message, and by the default prompting message in a manner of playing frame
In on the display screen of the mobile terminal.
Further, triggering is provided with the prompting frame where the default prompting message and shows icon, the prompting module
14 also include：
Hiding information display unit 142, for when receiving the click signal of the triggering display icon, obtaining dirty
Processing information, and the dirty processing information is shown in the lower section of the default prompting message, the dirty processing information bag
Include for instructing the dirty operating procedure that is handled of the user to the camera lens；
Prompting frame adjustment unit 143, adjust the size of the prompting frame so that the dirty processing information be shown in it is described
In prompting frame.
Further, the dirty system for prompting of the camera lens also includes：
Time computing module 18, for recording the time of the currently transmitted prompting, and calculate and send institute away from the last time
State the time interval of prompting；
And the prompting is sent automatically at interval of prompting module 14 described in the time interval.
The present invention also proposes a kind of computer-readable recording medium, is stored thereon with computer program, the program is processed
Device realizes the dirty based reminding method of camera lens described above when performing.
The present invention also proposes a kind of mobile terminal, including memory, processor and storage on a memory and can located
The computer program that runs on reason device, camera lens described above dirty prompting side is realized during the computing device described program
Method.
It will be understood by those skilled in the art that in flow charts represent or logic described otherwise above herein and/or
Step, for example, being considered the order list of the executable instruction for realizing logic function, it may be embodied in and appoint
In what computer-readable medium, for instruction execution system, device or equipment (such as computer based system including processor
System or other can be from the system of instruction execution system, device or equipment instruction fetch and execute instruction) use, or with reference to this
A little instruction execution system, device or equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can be with
Comprising, store, communicate, propagate or transmit program and perform system for instruction execution system, device or equipment or with reference to these instructions
System, device or equipment and the device used.
The more specifically example (non-exhaustive list) of computer-readable medium includes following：Connected up with one or more
Electrical connection section (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk are read-only
Memory (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium because can for example by carrying out optical scanner to paper or other media, then enter edlin, interpretation or if necessary with
Other suitable methods are handled electronically to obtain described program, are then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or combinations thereof are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
The embodiment of the present invention further discloses：
A1. the dirty based reminding method of a kind of camera lens, including：
The target gray value of predeterminable area in current taken image is calculated, the current taken image is clapped via the camera lens
Take the photograph to obtain；
Calculate the target light exposure value of the current taken image；
Judge whether the target gray value is located at corresponding to the target light exposure value in the range of gray threshold；
If it is not, prompting message is then sent, it is dirty to remind camera lens described in user to exist.
A2. the dirty based reminding method of camera lens according to A1, the predeterminable area is hair zones, it is described calculate it is current
Include in shooting image the step of the target gray value of predeterminable area：
According to face recognition algorithms, the hair zones in the current taken image are extracted；
The gray value of each pixel in the hair zones is subjected to mean value calculation, to obtain the target gray
Value.
A3. the dirty based reminding method of camera lens according to A1, it is described to judge the target gray value whether positioned at described
The step of corresponding to target light exposure value in the range of gray threshold, includes：
According to the target light exposure value, the gray threshold corresponding with the target light exposure value is inquired about among mapping table
Scope；
Judge the target gray value whether in the range of the gray threshold.
A4. the dirty based reminding method of camera lens according to A3, before the camera lens dispatches from the factory, in addition to：
The test image for the preset number that the camera lens is shot under multiple photographed scenes is obtained respectively；
Calculate respectively every test image exposure value and every test image described in predeterminable area ash
Angle value, to obtain camera lens ash of the exposure value scope of shooting image and the predeterminable area under each photographed scene
Angle value scope；
Using the intensity value ranges as the gray threshold scope corresponding to the exposure value scope, and together as pair
The information for the photographed scene answered is pre-stored among the mapping table.
A5. the dirty based reminding method of camera lens according to A1, the camera lens are installed on mobile terminal, and described send carries
The step of information of waking up, includes：
Default prompting message is obtained, and the default prompting message is shown in the mobile terminal in a manner of playing frame
On display screen.
A6. the dirty based reminding method of camera lens according to A5, it is provided with the prompting frame where the default prompting message
Triggering shows icon, in the display screen that the default prompting message is shown in the mobile terminal in a manner of playing frame
On step after, in addition to：
When receiving the triggering and showing the click signal of icon, dirty processing information is obtained, and by the dirty place
Presentation of information is managed in the lower section of the default prompting message, the dirty processing information includes being used to instruct user to the camera lens
The dirty operating procedure handled；
The size of the prompting frame is adjusted, so that the dirty processing information is shown in the prompting frame.
A7. the dirty based reminding method of camera lens according to A1, also includes after described the step of sending prompting message：
The time of the currently transmitted prompting message is recorded, and is calculated away from the last time for sending the prompting message
Interval；
The prompting message is sent automatically at interval of the time interval.
B8. the dirty system for prompting of a kind of camera lens, including：
Gray value computing module, for calculating the target gray value of predeterminable area in current taken image, the current bat
Image is taken the photograph to obtain via the lens shooting；
Exposure value computing module, for calculating the target light exposure value in the current taken image；
Gray value judge module, for judging whether the target gray value is located at gray scale corresponding to the target light exposure value
In threshold range；
Prompting module, for when determining the target gray value not in the range of the gray threshold, sending and carrying
Awake information, it is dirty to remind camera lens described in user to exist.
C9. a kind of computer-readable recording medium, is stored thereon with computer program, real when the program is executed by processor
The dirty based reminding method of camera lens now as described in A1-A7 is any.
D10. a kind of mobile terminal, including memory, processor and storage can transport on a memory and on a processor
Capable computer program, camera lens as described in A1-A7 is any dirty prompting side is realized during the computing device described program
Method.
Claims (10)
- A kind of 1. dirty based reminding method of camera lens, it is characterised in that including：The target gray value of predeterminable area in current taken image is obtained, the current taken image obtains via the lens shooting Arrive；Obtain the target light exposure value of the current taken image；AndJudge whether the target gray value is located at corresponding to the target light exposure value in the range of gray threshold；If it is not, prompting message is then sent, it is dirty to remind camera lens described in user to exist.
- 2. the dirty based reminding method of camera lens according to claim 1, it is characterised in that the predeterminable area is hair area Domain, described the step of obtaining the target gray value of predeterminable area in current taken image, include：According to face recognition algorithms, the hair zones in the current taken image are extracted；The gray value of each pixel in the hair zones is subjected to mean value calculation, to obtain the target gray value.
- 3. the dirty based reminding method of camera lens according to claim 1, it is characterised in that described to judge the target gray value The step of whether being located at corresponding to the target light exposure value in the range of gray threshold includes：According to the target light exposure value, the gray threshold model corresponding with the target light exposure value is inquired about among mapping table Enclose；Judge the target gray value whether in the range of the gray threshold.
- 4. the dirty based reminding method of camera lens according to claim 3, it is characterised in that before the camera lens dispatches from the factory, also Including：The test image for the preset number that the camera lens is shot under multiple photographed scenes is obtained respectively；Obtain respectively every test image exposure value and every test image described in predeterminable area gray value, To obtain camera lens gray value of the exposure value scope of shooting image and the predeterminable area under each photographed scene Scope；Using the intensity value ranges as the gray threshold scope corresponding to the exposure value scope, and together as corresponding The information of the photographed scene is pre-stored among the mapping table.
- 5. the dirty based reminding method of camera lens according to claim 1, the camera lens are installed on mobile terminal, its feature exists In described the step of sending prompting message includes：Default prompting message is obtained, and the default prompting message is shown in the display of the mobile terminal in a manner of playing frame On screen.
- 6. the dirty based reminding method of camera lens according to claim 5, it is characterised in that where the default prompting message Triggering is provided with prompting frame and shows icon, the default prompting message is shown in the movement eventually in a manner of playing frame described After step on the display screen at end, in addition to：When receiving the click signal of the triggering display icon, dirty processing information is obtained, and the dirty processing is believed Breath is shown in the lower section of the default prompting message, and the dirty processing information includes being used to instruct user to the dirty of the camera lens The operating procedure that dirt is handled；The size of the prompting frame is adjusted, so that the dirty processing information is shown in the prompting frame.
- 7. the dirty based reminding method of camera lens according to claim 1, it is characterised in that in the step for sending prompting message Also include after rapid：The time of the currently transmitted prompting message is recorded, and is calculated away between the last time for sending the prompting message Every；The prompting message is sent automatically at interval of the time interval.
- A kind of 8. dirty system for prompting of camera lens, it is characterised in that including：Gray value acquisition module, for obtaining the target gray value of predeterminable area in current taken image, the current shooting figure As being obtained via the lens shooting；Exposure value acquisition module, for obtaining the target light exposure value in the current taken image；Gray value judge module, for judging whether the target gray value is located at gray threshold corresponding to the target light exposure value In the range of；AndPrompting module, for when determining the target gray value not in the range of the gray threshold, sending prompting letter Breath, it is dirty to remind camera lens described in user to exist.
- 9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is held by processor The method as described in claim 1-7 is any is realized during row.
- 10. a kind of mobile terminal, including memory, processor and storage are on a memory and the meter that can run on a processor Calculation machine program, it is characterised in that the method as described in claim 1-7 is any is realized during the computing device described program.
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