CN106780394A - A kind of image sharpening method and terminal - Google Patents
A kind of image sharpening method and terminal Download PDFInfo
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- CN106780394A CN106780394A CN201611248625.5A CN201611248625A CN106780394A CN 106780394 A CN106780394 A CN 106780394A CN 201611248625 A CN201611248625 A CN 201611248625A CN 106780394 A CN106780394 A CN 106780394A
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- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000003707 image sharpening Methods 0.000 title claims abstract description 25
- 230000001815 facial effect Effects 0.000 claims abstract description 37
- 230000004927 fusion Effects 0.000 claims abstract description 12
- 238000000605 extraction Methods 0.000 claims description 10
- 239000000284 extract Substances 0.000 claims description 9
- 210000003746 feather Anatomy 0.000 claims description 6
- 238000003709 image segmentation Methods 0.000 claims description 6
- 230000006870 function Effects 0.000 description 13
- 230000015654 memory Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 6
- 210000004209 hair Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
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- 210000004709 eyebrow Anatomy 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The embodiment of the invention discloses a kind of image sharpening method, methods described includes：The facial information included in shooting image is identified according to face identification method, the biological information in the facial information is extracted；Image corresponding with biological information is the first sharpened area in determining the shooting image, and the image in the shooting image outside image corresponding with biological information is the second sharpened area；The first sharpening instruction for first sharpened area is received, the first sharpening image is obtained；The second sharpening instruction for second sharpened area is received, the second sharpening image is obtained；First sharpening image and second sharpening image are merged, the sharpening image after fusion is obtained.The embodiment of the present invention also discloses a kind of image sharpening terminal simultaneously.The present invention solves the problems, such as that the sharpening occurred when being sharpened to portrait is excessive, it is ensured that the reasonability of portrait sharpness.
Description
Technical field
The present invention relates to image processing field, more particularly to a kind of image sharpening method and terminal.
Background technology
Image sharpening (image sharpening) can compensate the profile of image, strengthen the edge and Gray Level Jump of image
Part, be apparent from image.In portraiture photography, portrait profile in image can be made more by appropriate image sharpening
Plus it is clear, after carrying out image sharpening treatment to portrait facial information, portrait facial information is more clearly demarcated, and detailed information is more rich
It is rich.But can cause noise on the contrary to the sharpening excessively of portrait face increases, and portrait imaging effect declines, and its reason is by figure
Can increase the contrast of image in border district as sharpening, but noise is also have edge, it is doing over-sharpening to cause noise
Edge also sharpen therewith, cause image noise more obvious.
In the prior art, generally carrying out high-pass filtering in spatial domain and frequency domain realizes the sharpening of image.By image sharpening
Afterwards, whole image edge all becomes relatively sharp, border and blear image in particular for image, sharp by image
What the border of image and the details of profile and image became after change treatment is clear.But, this image sharpening is directed to whole figure
As for, image information different in image is not distinguish between, so may result in image local distortion or noise more
For obvious.
The content of the invention
It is a primary object of the present invention to propose a kind of image sharpening method and terminal, it is intended to which solution when being sharpened to portrait
The excessive problem of existing sharpening.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
In a first aspect, the embodiment of the invention provides a kind of image sharpening method, methods described includes：
The facial information included in shooting image is identified according to face identification method, the life in the facial information is extracted
Thing characteristic information；
Image corresponding with biological information is the first sharpened area, the shooting image in determining the shooting image
In image outside image corresponding with biological information be the second sharpened area；
The first sharpening instruction for first sharpened area is received, the first sharpening image is obtained；
The second sharpening instruction for second sharpened area is received, the second sharpening image is obtained；
First sharpening image and second sharpening image are merged, the sharpening image after fusion is obtained.
Alternatively, the facial information included in shooting image is identified according to face identification method, the face letter is extracted
Biological information in breath, specifically includes：
When in identifying shooting image according to face identification method comprising facial information, using biological feather recognition method
Extract the biological information in facial information.
Alternatively, image corresponding with biological information is the first sharpened area in the determination shooting image,
Image in the shooting image outside image corresponding with biological information is the second sharpened area, is specifically included：
According to image corresponding with biological information in the biological information locking shooting image, institute is determined
Image corresponding with biological information is the first sharpened area in stating shooting image；
Determine that the image-region beyond first sharpened area is the second sharpened area using image segmentation.
Alternatively, the first sharpening instruction received for first sharpened area, obtains the first sharpening image, tool
Body includes：
Receive the first sharpening instruction for first sharpened area；Wherein, described first instruction instruction raising is sharpened
The sharpness of first sharpened area；
The sharpness that instruction improves the first sharpened area is sharpened according to described first, the first sharpening image is obtained；Wherein
First sharpening image is to improve the image after the sharpness of first sharpened area.
Alternatively, the second sharpening instruction received for second sharpened area, obtains the second sharpening image, tool
Body includes：
Receive the second sharpening instruction for second sharpened area；Wherein, described second instruction instruction reduction is sharpened
The sharpness of second sharpened area；
Sharpening instruction according to described second reduces the sharpness of the second sharpened area, obtains the second sharpening image；Wherein
Second sharpening image is to reduce the image after the sharpness of second sharpened area.
Second aspect, the embodiment of the invention provides a kind of image sharpening terminal, and the terminal includes：Extraction module, really
Cover half block, receiver module, acquisition module and image co-registration module；Wherein,
The extraction module, for identifying the facial information included in shooting image according to face identification method, extracts
Biological information in the facial information；
The determining module, for determining in the shooting image that image corresponding with biological information is first to sharpen
Region, the image in the shooting image outside image corresponding with biological information is the second sharpened area；
The receiver module, for receiving the first sharpening instruction for first sharpened area；
The acquisition module, for obtaining the first sharpening image；
The receiver module, is additionally operable to receive the second sharpening instruction for second sharpened area；
The acquisition module, is additionally operable to obtain the second sharpening image；
Described image Fusion Module, for first sharpening image and second sharpening image to be merged；
The acquisition module, is additionally operable to obtain the sharpening image after fusion.
Alternatively, the extraction module, for believing comprising face in shooting image is identified according to face identification method
During breath, the biological information in facial information is extracted using biological feather recognition method.
Alternatively, the determining module, for according to the biological information lock in the shooting image with biology
The corresponding image of characteristic information, image corresponding with biological information is the first sharpened area in determining the shooting image；
And, determine that the image-region beyond first sharpened area is the second sharpened area using image segmentation.
Alternatively, the receiver module, for receiving the first sharpening instruction for first sharpened area；Wherein,
Described first sharpens instruction indicates to improve the sharpness of first sharpened area；
The acquisition module, for sharpening the sharpness that instruction improves the first sharpened area according to described first, obtains
First sharpening image；Wherein the first sharpening image is to improve the image after the sharpness of first sharpened area.
Alternatively, the receiver module, for receiving the second sharpening instruction for second sharpened area；Wherein,
Described second sharpens instruction indicates to reduce the sharpness of second sharpened area；
The acquisition module, the sharpness of the second sharpened area is reduced for sharpening instruction according to described second, is obtained
Second sharpening image；Wherein the second sharpening image is to reduce the image after the sharpness of second sharpened area.
A kind of image sharpening method and terminal that the embodiment of the present invention is provided, by identifying the biology in facial information
Characteristic information, is divided into the first sharpened area, figure corresponding with biological information by image corresponding with biological information
Image as outside is divided into the second sharpened area, improves the sharpness of the first sharpened area image, reduces by second and sharpens area
The sharpness of area image, then carries out the image after being merged, solve the problems, such as portrait sharpen when sharpen it is excessive,
Ensure that the reasonability of portrait sharpness.
Brief description of the drawings
Fig. 1 is a kind of hardware architecture diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 2 is a kind of image sharpening method schematic flow sheet that the embodiment of the present invention one is provided；
Fig. 3 is that the subregion that the embodiment of the present invention one is provided sharpens shoot function surface chart；
Fig. 4 is the method flow schematic diagram of the determination subregion that the embodiment of the present invention one is provided；
Fig. 5 is that the subregion sharpening function that the embodiment of the present invention one is provided implements surface chart；
Fig. 6 is the schematic flow sheet of the first sharpened area of raising sharpness that the embodiment of the present invention one is provided；
Fig. 7 is the schematic flow sheet of the second sharpened area of reduction sharpness that the embodiment of the present invention one is provided；
Fig. 8 is the image sharpening terminal structure block diagram that the embodiment of the present invention two is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
The mobile terminal of realization each embodiment of the invention is described referring now to accompanying drawing 1.In follow-up description, make
With the suffix of such as " module ", " part " or " unit " for representing element only for being conducive to explanation of the invention, its
Body does not have specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
It is phone, smart phone, notebook computer, digit broadcasting receiver, personal digital assistant (PDA), panel computer (PAD), portable
The mobile terminal of formula multimedia player (PMP), guider etc. and the such as fixation of numeral TV, desktop computer etc.
Terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for moving mesh
Element outside, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated.
Mobile terminal 1 00 can include user input unit 130, sensing unit 140, output unit 150, memory 160,
Controller 180 etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all
The component for showing, can alternatively implement more or less component, and the element of mobile terminal will be discussed in more detail below.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection due to being touched caused by resistance, pressure, electric capacity etc. change sensitive component), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display unit 151 in the form of layer, touch-screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, (for example, mobile terminal 1 00 opens or closes shape
State), the presence or absence of the contact (that is, touch input) of the position of mobile terminal 1 00, user for mobile terminal 1 00, mobile terminal
The acceleration or deceleration movement of 100 orientation, mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opened or closed.Sensing unit 140 will can below combine touch-screen including proximity transducer 141
To be described to this.
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity
Power provides to the path of mobile terminal 1 00 from base or can serve as allowing the various command signals being input into from base to pass through it
It is transferred to the path of mobile terminal.Be can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with vision, audio and/or tactile manner
Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include display
Unit 151, dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, show video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when display unit 151 and touch pad in the form of layer it is superposed on one another to form touch-screen when, display unit
151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to be watched from outside, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired implementation method, mobile terminal 1 00 can include two or more display units (or other display devices), for example, moving
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used to detect touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Alarm unit 153 can provide output and be notified to mobile terminal 1 00 with by event.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm unit
153 can in a different manner provide output with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (Incoming Communication) are received, alarm list
Unit 153 can provide tactile output (for example, vibration) to notify to user.Exported by providing such tactile, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can also be provided via display unit 151 or dio Output Modules 152.
Memory 160 can store software program for the treatment and control operation performed by controller 180 etc., Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And, memory 160 can store the vibration of various modes on being exported when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
Communication, video calling etc. related control and treatment.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 181 of volume data, multi-media module 181 can be constructed in controller 180, or can be structured as and control
Device 180 is separated.Controller 180 can be with execution pattern identifying processing, the handwriting input that will be performed on the touchscreen or picture
Draw input and be identified as character or image.
Various implementation methods described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implemented.Implement for hardware, implementation method described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
At least one in electronic unit is implemented, and in some cases, such implementation method can be implemented in controller 180.
For software implementation, the implementation method of such as process or function can with allow to perform the single of at least one function or operation
Software module is implemented.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and performed by controller 180.
So far, oneself according to its function through describing mobile terminal.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 1 00 as shown in Figure 1 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operated.
Based on above-mentioned mobile terminal hardware configuration, the inventive method each embodiment is proposed.
Embodiment one
Referring to Fig. 2, it illustrates a kind of image sharpening method provided in an embodiment of the present invention, methods described includes：
S201, the facial information included in shooting image is identified according to face identification method, extract the facial information
In biological information；
S202, determine that image corresponding with the biological information is the first sharpened area, institute in the shooting image
It is the second sharpened area to state the image in shooting image outside image corresponding with the biological information；
S203, reception obtain the first sharpening image for the first sharpening instruction of first sharpened area；
S204, reception obtain the second sharpening image for the second sharpening instruction of second sharpened area；
S205, first sharpening image and second sharpening image are merged, obtained the sharpening figure after fusion
Picture.
For step S201, the face identification method can be the method for feature based face, or based on geometric properties
Face identification method, or the face identification method based on neural network, what the present invention paid close attention to is not the specific side of recognition of face
Method, but the realizability of face identification method.
The facial information included in shooting image is identified by face recognition technology, there is provided the face in shooting image
Information, contains the biological information of more details in facial information.
Biological information refers to face feature information, can specifically criticize often the indispensable eyes of face, nose,
Mouth, eyebrow, including the biological characteristic such as shape of face, hair.
For step S201, the facial information included in shooting image is identified according to face identification method, extract described
Biological information in facial information, specifically includes：
When in identifying shooting image according to face identification method comprising facial information, using biological feather recognition method
Extract the biological information in facial information.
Referring to Fig. 3, by after the biological information during biological feather recognition method extracts portrait, in the screen of terminal
Whether upper ejection prompting frame as shown in Figure 3, points out user " open subregion and sharpen shoot function ".Open subregion and sharpen shooting work(
After energy, image is divided into the first sharpened area and the second sharpened area, distinguished for the first sharpened area and the second sharpened area
Different degrees of sharpening is carried out, the effect of subregion sharpening can be reached.
For step S202, referring to Fig. 4, image corresponding with biological information is first in determining the shooting image
Sharpened area, the image in the shooting image outside image corresponding with biological information is the second sharpened area, specifically
Including step S2021 and S2022：
S2021, image corresponding with biological information in the shooting image is locked according to the biological information,
Image corresponding with biological information is the first sharpened area in determining the shooting image；
S2022, determine that image-region beyond first sharpened area is the second sharpened area using image segmentation.
For step S2021, it is possible to understand that ground, after the biological information in having extracted facial information, by biology
The corresponding image of characteristic information is locked, and the image-region for delimiting locking is the first sharpened area.
For step S2022, it is possible to understand that ground, image is split in the first sharpened area according to image, by first
Section sets outside sharpened area are the second sharpened area.
Further, referring to Fig. 5, the part that Fig. 5 orbicular spot dotted lines are identified is special with biology to be identified in portrait
First sharpened area of reference breath, including the shape of face of portrait, eyes, nose, face and hair portion.In round dot broken line representation
Cap for portrait and background area beyond the first sharpened area for going out, this subregion are the second sharpened area.By Fig. 5
As can be seen that by subregion sharpen function, by portrait with biological information part and with biological information with
Outer part makes a distinction, it is possible to use subregion sharpening function carries out sharp respectively to the first sharpened area and the second sharpened area
Change, it is to avoid the situation for causing doing over-sharpening or sharpness not enough under unified sharpness.
For step S203, referring to Fig. 6, the first sharpening instruction for first sharpened area is received, obtain first
Sharpening image, specifically includes step S2031 and S2032：
S2031, reception are instructed for the first sharpening of first sharpened area；Wherein, the first sharpening instruction refers to
Show the sharpness for improving first sharpened area；
S2032, the sharpness that the first sharpened area of instruction raising is sharpened according to described first, obtain first and sharpen figure
Picture；Wherein the first sharpening image is to improve the image after the sharpness of first sharpened area.
For step S2031, the image corresponding to the first sharpened area is image corresponding with biological information, to
First sharpening instruction of one sharpened area is the sharpness of the first sharpened area of raising, improves the sharpening journey of the first sharpened area
The purpose of degree is biological information in reinforcing portrait, and the face key point information made one as in is more prominent.
For step S2032, the sharpness that instruction improves the first sharpened area is sharpened according to described first, improve first
The sharpness of sharpened area can just obtain the first sharpening image.As shown in figure 5, the first sharpened area is biological spy in portrait
Reference ceases corresponding image-region, by the shape of face in the first sharpened area, eyes, nose, face and hair portion
Appropriate raising sharpness, can lift the sharpness of portrait, make the shape of face of portrait in Fig. 5, eyes, nose, face with
And hair portion lines are apparent, profile is clearly more demarcated, embodies the key character of portrait septum reset.
For step S204, referring to Fig. 7, the second sharpening instruction for second sharpened area is received, obtain second
Sharpening image, specifically includes S2041 and S2042：
S2041, reception are instructed for the second sharpening of second sharpened area；Wherein, the second sharpening instruction refers to
Show the sharpness for reducing by second sharpened area；
S2042, the sharpness that the second sharpened area of instruction reduction is sharpened according to described second, obtain second and sharpen figure
Picture；Wherein the second sharpening image is to reduce the image after the sharpness of second sharpened area.
For step S2041, the image corresponding to the second sharpened area is and the image-region outside biological information
Corresponding image, the second sharpening instruction to the second sharpened area is the sharpness of the second sharpened area of reduction, reduces by second
The purpose of the sharpness of sharpened area be in order that the second sharpened area image compared to the first sharpened area image and
Speech relative smooth, makes the portrait part in whole image more protrude.
For step S2042, sharpening instruction according to described second reduces the sharpness of the second sharpened area, reduces by second
The sharpness of sharpened area can just obtain the second sharpening image.As shown in figure 5, the second sharpened area is biological spy in portrait
Reference ceases the image outside corresponding image-region, by the sharpening journey for reducing the image sections such as the background in the second sharpened area
Degree, can make the image relative smooth of background parts.
Also, it should be noted that first sharpens instruction instruction raising sharpness, first is improved under sharpening instruction first
The sharpness of sharpened area, however it is necessary that being sharpened degree to the image in the first sharpened area in certain zone of reasonableness
Raising.The mistake that the sharpness of the first sharpened area can prevent to the first sharpened area is lifted in default first threshold
Degree is sharpened, so as to the image sharpening for causing the image noise increase of the first sharpened area or the first sharpened area excessively causes to lose
Very.
Similarly, second instruction instruction reduction sharpness is sharpened, the second sharpened area is reduced under sharpening instruction second
Sharpness, but equally it is also required in certain zone of reasonableness to the image reduction sharpness in the second sharpened area.
The sharpness of the second sharpened area is reduced in default Second Threshold can be prevented to the second sharpened area sharpness not enough,
Cause excess smoothness, so that detailed information is lost, image specifying information obfuscation.
For step S205, the first sharpening image and the second sharpening image are merged, be after improving sharpness
The first sharpening image and reduce sharpness after the second sharpening image merged.Sharpening image after fusion is due to taking
The method that subregion is sharpened, the image effect of acquisition integrally improves or reduces the figure that sharpness is obtained relative to whole image
Specific aim is had more as.By the image after fusion, the sharpness to portrait face is moderate, will not make because of image sharpening
Portrait noise increases.
A kind of image sharpening method that the embodiment of the present invention is provided, by identifying that the biological characteristic in facial information is believed
Breath, is divided into the first sharpened area, outside image corresponding with biological information by image corresponding with biological information
Image be divided into the second sharpened area, improve the sharpness of the first sharpened area image, reduce the second sharpened area image
Sharpness, then carry out the image after being merged, solve the problems, such as portrait sharpen when sharpen it is excessive, it is ensured that
The reasonability of portrait sharpness.
Embodiment two
Referring to Fig. 8, it illustrates a kind of structured flowchart of image sharpening terminal 8 provided in an embodiment of the present invention, the end
End 8 includes：Extraction module 801, determining module 802, receiver module 803, acquisition module 804 and image co-registration module 805；Its
In,
The extraction module 801, for identifying the facial information included in shooting image according to face identification method, carries
Take the biological information in the facial information；
The determining module 802, for determining the shooting image in image corresponding with the biological information be
First sharpened area, the image in the shooting image outside image corresponding with the biological information is the second sharpening area
Domain；
The receiver module 803, for receiving the first sharpening instruction for first sharpened area；
The acquisition module 804, for obtaining the first sharpening image；
The receiver module 803, is additionally operable to receive the second sharpening instruction for second sharpened area；
The acquisition module 804, is additionally operable to obtain the second sharpening image；
Described image Fusion Module 805, for first sharpening image and second sharpening image to be merged；
The acquisition module 804, is additionally operable to obtain the sharpening image after fusion.
Further, the extraction module 801, for being identified in shooting image comprising face when according to face identification method
During portion's information, the biological information in facial information is extracted using biological feather recognition method.
Further, the determining module 802, for according to the biological information lock in the shooting image with
The corresponding image of biological information, image corresponding with biological information is the first sharpening area in determining the shooting image
Domain；
And, determine that the image-region beyond first sharpened area is the second sharpened area using image segmentation.
Further, the receiver module 803, for receiving the first sharpening instruction for first sharpened area；
Wherein, described first the sharpness that instruction indicates raising first sharpened area is sharpened；
The acquisition module 804, for sharpening the sharpness that instruction improves the first sharpened area according to described first, obtains
Take the first sharpening image；Wherein the first sharpening image is to improve the image after the sharpness of first sharpened area.
Further, the receiver module 803, for receiving the second sharpening instruction for second sharpened area；
Wherein, described second the sharpness that instruction indicates reduction by second sharpened area is sharpened；
The acquisition module 804, the sharpness of the second sharpened area is reduced for sharpening instruction according to described second, is obtained
Take the second sharpening image；Wherein the second sharpening image is to reduce the image after the sharpness of second sharpened area.
Specifically, for the present embodiment, the extraction module 801, determining module 802, receiver module 803, acquisition module
804 and the function of image co-registration module 805 program in memory can be called by the processor of the terminal 8 or store up number in advance
According to being realized.In actual applications, above-mentioned processor can be application-specific IC (ASIC, Application
Specific Integrated Circuit), digital signal processor (DSP, Digital Signal Processor), number
Word signal processing apparatus (DSPD, Digital Signal Processing Device), programmable logic device (PLD,
Programmable Logic Device), field programmable gate array (FPGA, Field Programmable Gate
Array), in central processing unit (CPU, Central Processing Unit), controller, microcontroller, microprocessor extremely
Few one kind.It is to be appreciated that for different systems, the electronic device for realizing above-mentioned processor function can also be it
It, the embodiment of the present invention is not especially limited.
A kind of image sharpening terminal that the embodiment of the present invention is provided, by identifying that the biological characteristic in facial information is believed
Breath, is divided into the first sharpened area, outside image corresponding with biological information by image corresponding with biological information
Image be divided into the second sharpened area, improve the sharpness of the first sharpened area image, reduce the second sharpened area image
Sharpness, then carry out the image after being merged, solve the problems, such as portrait sharpen when sharpen it is excessive, it is ensured that
The reasonability of portrait sharpness.
It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row
His property is included, so that process, method, article or device including a series of key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute are intrinsic
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably implementation method.Based on such understanding, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used to so that a station terminal equipment (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) perform method described by each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of image sharpening method, it is characterised in that methods described includes：
The facial information included in shooting image is identified according to face identification method, the biology extracted in the facial information is special
Reference ceases；
Image corresponding with the biological information is the first sharpened area, the shooting image in determining the shooting image
In image outside image corresponding with the biological information be the second sharpened area；
The first sharpening instruction for first sharpened area is received, the first sharpening image is obtained；
The second sharpening instruction for second sharpened area is received, the second sharpening image is obtained；
First sharpening image and second sharpening image are merged, the sharpening image after fusion is obtained.
2. method according to claim 1, it is characterised in that included in identifying shooting image according to face identification method
Facial information, extract the biological information in the facial information, specifically include：
When in identifying shooting image according to face identification method comprising facial information, extracted using biological feather recognition method
Biological information in facial information.
3. method according to claim 1, it is characterised in that with biological information in the determination shooting image
Corresponding image is the first sharpened area, and image in the shooting image outside image corresponding with biological information is the
Two sharpened areas, specifically include：
According to image corresponding with biological information in the biological information locking shooting image, the bat is determined
It is the first sharpened area to take the photograph image corresponding with biological information in image；
Determine that the image-region beyond first sharpened area is the second sharpened area using image segmentation.
4. method according to claim 1, it is characterised in that the reception is first sharp for first sharpened area
Change instruction, obtain the first sharpening image, specifically include：
Receive the first sharpening instruction for first sharpened area；Wherein, described first sharpen described in instruction instruction raising
The sharpness of the first sharpened area；
The sharpness that instruction improves the first sharpened area is sharpened according to described first, the first sharpening image is obtained；Wherein first
Sharpening image is to improve the image after the sharpness of first sharpened area.
5. method according to claim 1, it is characterised in that the reception is second sharp for second sharpened area
Change instruction, obtain the second sharpening image, specifically include：
Receive the second sharpening instruction for second sharpened area；Wherein, described second sharpen described in instruction instruction reduction
The sharpness of the second sharpened area；
Sharpening instruction according to described second reduces the sharpness of the second sharpened area, obtains the second sharpening image；Wherein second
Sharpening image is to reduce the image after the sharpness of second sharpened area.
6. a kind of image sharpening terminal, it is characterised in that the terminal includes：Extraction module, determining module, receiver module, obtain
Modulus block and image co-registration module；Wherein,
The extraction module, for identifying the facial information included in shooting image according to face identification method, extracts described
Biological information in facial information；
The determining module, for determining in the shooting image that image corresponding with the biological information is first to sharpen
Region, the image in the shooting image outside image corresponding with the biological information is the second sharpened area；
The receiver module, for receiving the first sharpening instruction for first sharpened area；
The acquisition module, for obtaining the first sharpening image；
The receiver module, is additionally operable to receive the second sharpening instruction for second sharpened area；
The acquisition module, is additionally operable to obtain the second sharpening image；
Described image Fusion Module, for first sharpening image and second sharpening image to be merged；
The acquisition module, is additionally operable to obtain the sharpening image after fusion.
7. terminal according to claim 6, it is characterised in that
The extraction module, for when in identifying shooting image according to face identification method comprising facial information, using life
Thing characteristic recognition method extracts the biological information in facial information.
8. terminal according to claim 6, it is characterised in that
The determining module, for according to corresponding with biological information in the biological information locking shooting image
Image, determine that image corresponding with biological information is the first sharpened area in the shooting image；
And, determine that the image-region beyond first sharpened area is the second sharpened area using image segmentation.
9. terminal according to claim 6, it is characterised in that
The receiver module, for receiving the first sharpening instruction for first sharpened area；Wherein, described first sharpen
Instruction indicates to improve the sharpness of first sharpened area；
The acquisition module, for sharpening the sharpness that instruction improves the first sharpened area according to described first, obtains first
Sharpening image；Wherein the first sharpening image is to improve the image after the sharpness of first sharpened area.
10. terminal according to claim 6, it is characterised in that
The receiver module, for receiving the second sharpening instruction for second sharpened area；Wherein, described second sharpen
Instruction indicates to reduce the sharpness of second sharpened area；
The acquisition module, the sharpness of the second sharpened area is reduced for sharpening instruction according to described second, obtains second
Sharpening image；Wherein the second sharpening image is to reduce the image after the sharpness of second sharpened area.
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| CN106780394B (en) | 2020-12-08 |
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