CN107909540A - Image processing method, device, mobile terminal and computer-readable recording medium - Google Patents
Image processing method, device, mobile terminal and computer-readable recording medium Download PDFInfo
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Classifications
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- G06T3/047—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
Abstract
The invention discloses a kind of image processing method, device, mobile terminal and computer-readable recording medium, image processing method includes：Pending target image is obtained, and the overall of preset multiple is carried out to target image and is amplified to generate enlarged drawing；And subregion is carried out to enlarged drawing to form multiple grid regions；According to the warp parameters of reception and each grid regions and the distribution distance of enlarged drawing reference center, distortion processing is carried out to each grid regions, to generate warp image, the distribution distance of wherein grid regions is bigger, and the torsion resistance of the distortion processing of the grid regions is bigger；Reference center based on warp image, intercepts the warp image of preset ratio as image to be displayed.The present invention realizes the carry out entirety amplification successively and distortion processing to personage's main body in target image, highlights the image in reference center region, realizes and the U.S. face of personage's entirety in image is adjusted.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of image processing method, device, mobile terminal and meter
Calculation machine readable storage medium storing program for executing.
Background technology
With the development of the communication technology and manufacturing process, portable mobile terminal (such as smart mobile phone, tablet computer etc.)
Using more and more extensive, user is taken pictures as a kind of fashion, particularly personage's shooting function using mobile terminal, still,
Due to reasons such as ambient, environment, mobile terminal shoots the photo come may be unsatisfactory, it is necessary to be carried out to photograph image
U.S. face processing, the face processing of existing image U.S. show adjustment primarily directed to the character facial of photo and the color of environment, can not
The entirety of personage is adjusted, can not meet diversification adjustment demand of the user to personage.
The content of the invention
It is a primary object of the present invention to provide a kind of image processing method, device, mobile terminal and computer-readable deposit
Storage media, it is intended to solve the technical problem that existing mobile terminal can not be adjusted the entirety of personage.
To achieve the above object, the embodiment of the present invention provides a kind of image processing method, and described image processing method includes：
Pending target image is obtained, and the overall of preset multiple is carried out to target image and is amplified to generate enlarged drawing
Picture；And subregion is carried out to enlarged drawing to form multiple grid regions；
According to the warp parameters of reception and each grid regions and the distribution distance of enlarged drawing reference center, to each grid regions
Distortion processing is carried out, to generate warp image, the distribution distance of wherein grid regions is bigger, the distortion of the distortion processing of the grid regions
Degree is bigger；
Reference center based on warp image, intercepts the warp image of preset ratio as image to be displayed.
Alternatively, wrapped after the step of overall amplification that preset multiple is carried out to target image is to generate enlarged drawing
Include：
Main body in enlarged drawing is identified, judges to whether there is personage's main body in enlarged drawing；
If, according to character positions of personage's main body in enlarged drawing, determine to put there are personage's main body in enlarged drawing
The reference center of big image；
If personage's main body is not present in enlarged drawing, according to the geometric center position of enlarged drawing, enlarged drawing is determined
Reference center.
Alternatively, the character positions according to personage's main body in enlarged drawing, determine the reference center of enlarged drawing
The step of include：
Judge to whether there is multiple personage's main bodys in enlarged drawing, if there are multiple personage's main bodys in enlarged drawing, will
Position of the personage's main body of area coverage maximum in enlarged drawing, the reference center as enlarged drawing；
If one-man owner's body in enlarged drawing, by position of personage's main body in enlarged drawing in enlarged drawing
Put, the reference center as enlarged drawing.
Alternatively, the distribution according to the warp parameters of reception and each grid regions and enlarged drawing reference center away from
From carrying out distortion processing to each grid regions, to generate warp image the step of includes：
User's input or the warp parameters automatically generated are received, warp parameters include horizontal twisting radian and vertical distortion arc
Degree；
According to the horizontal twisting radian and vertical distortion radian, the benchmark direction of twist and benchmark for determining enlarged drawing are turned round
Bent radian；
Radian and the distribution distance of each grid regions are distorted according to benchmark, determine the actual distortion radian of each grid regions, wherein
Distribution distance is bigger, and actual distortion radian is bigger；
Along benchmark direction of twist, distortion processing is carried out to each grid regions of enlarged drawing according to actual distortion radian, its
Middle actual distortion radian is bigger, and the torsion resistance of the grid regions is bigger.
Alternatively, it is described according to the horizontal twisting radian and vertical distortion radian, determine the benchmark distortion of enlarged drawing
The step of direction and benchmark distortion radian, includes：
According to horizontal twisting radian and vertical distortion radian, direction of twist angle and benchmark distortion radian are determined；
Using enlarged drawing reference center as vertex, using the direction of twist angle as angle, determine towards enlarged drawing corner
Benchmark direction of twist.
Alternatively, it is described that radian and the distribution distance of each grid regions are distorted according to benchmark, determine the actual torsion of each grid regions
The step of bent radian, includes：
According to the distribution distance of each grid regions and enlarged drawing reference center, the enhancement coefficient of each grid regions is determined, wherein
The distribution distance of grid regions is bigger, and it is bigger which corresponds to enhancement coefficient；
Numerical value increase processing is carried out to benchmark distortion radian according to the enhancement coefficient of each grid regions, obtains the reality of each grid regions
Border distorts radian.
Alternatively, it is described along benchmark direction of twist, each grid regions of enlarged drawing are carried out according to actual distortion radian
The step of distortion processing, includes：
Each grid regions of enlarged drawing are carried out by image stretch to corresponding benchmark direction of twist according to actual distortion radian,
To generate warp image.
The present invention also provides a kind of image processing apparatus, described image processing unit includes：
Amplification module, for obtaining pending target image, and carries out target image the overall of preset multiple and amplifies
To generate enlarged drawing；
Division module, for forming multiple grid regions to enlarged drawing progress subregion；
Distort module, for the warp parameters according to reception and each grid regions and enlarged drawing reference center distribution away from
From carrying out distortion processing to each grid regions, to generate warp image, the distribution distance of wherein grid regions is bigger, the grid regions
The torsion resistance for distorting processing is bigger；
Interception module, for the reference center based on warp image, intercepts the warp image of preset ratio as to be shown
Image.
The present invention also provides a kind of mobile terminal, the mobile terminal includes：Memory, processor and it is stored in described
On memory and the image processing program that can run on the processor, described image processing routine are performed by the processor
The step of Shi Shixian above-mentioned image processing methods.
The present invention also provides a kind of computer-readable recording medium, image is stored with the computer-readable recording medium
The step of processing routine, described image processing routine realizes above-mentioned image processing method when being executed by processor.
The present invention obtains enlarged drawing by being amplified to target image, then enlarged drawing progress subregion is formed multiple
Grid regions, then according to the warp parameters of reception and each grid regions and the distribution distance of enlarged drawing reference center, to each net
Lattice area carries out distortion processing, to generate warp image, is finally based on the reference center of warp image, intercepts the distortion of preset ratio
Image is handled so as to fulfill the carry out entirety amplification successively to personage's main body in target image and distortion as image to be displayed,
The image in reference center region is highlighted, then (personage's main body is closed on reference center) carries out sectional drawing centered on personage's main body,
So that the relative area and entirety accounting of personage's main body in image to be displayed, protrude personage's main body in image to be displayed, show
Personage's main body stature is taller, leg is more slender, and then the U.S. face adjustment to personage's entirety in image is realized, from software
On realize fish-eye part effect.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for realizing each optional mobile terminal of embodiment one of the present invention；
Fig. 2 is the radio communication device schematic diagram of mobile terminal in Fig. 1；
Fig. 3 is conversion schematic diagram of the enlarged drawing to warp image in image processing method of the present invention；
Fig. 4 is conversion schematic diagram of the warp image to image to be displayed in image processing method of the present invention；
Fig. 5 is enlarged drawing and the structure diagram of warp image in image processing method of the present invention；
Fig. 6 is the distortion scene schematic diagram that enlarged drawing is converted to warp image in image processing method of the present invention；
Fig. 7 is the flow diagram of one embodiment of image processing method of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In follow-up description, the suffix using such as " module ", " component " or " unit " for representing element is only
Be conducive to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Mobile terminal can be implemented in a variety of manners.For example, mobile terminal described in the present invention can be included such as
Mobile phone, tablet computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant,
PDA), portable media player (Portable Media Player, PMP), guider, wearable device, intelligent hand
The terminal devices such as ring, pedometer.
It will be appreciated by those skilled in the art that in addition to being used in particular for the element of mobile purpose, according to the present invention
The construction of embodiment can also apply to the mobile terminal of fixed type.
Referring to Fig. 1, its hardware architecture diagram for a kind of mobile terminal of each embodiment of the realization present invention, the shifting
Dynamic terminal 100 can include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103rd, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108th, the component such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not form the restriction to mobile terminal, and mobile terminal can be included than illustrating more or fewer components,
Either combine some components or different components arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1：
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, the reception and transmission of signal, specifically, by base station
Downlink information receive after, handled to processor 110；In addition, by the data sending of uplink to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrate
Frequency unit 101 can also be communicated by wireless communication with network and other equipment.Above-mentioned wireless communication can use any communication
Standard or agreement, include but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex Long Term Evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex Long Term Evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browse webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, it is simultaneously not belonging to must be configured into for mobile terminal, completely can be according to need
To be omitted in the essential scope for do not change invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
Formula, speech recognition mode, broadcast reception mode when under isotype, by radio frequency unit 101 or WiFi module 102 it is receiving or
It is sound that the voice data stored in memory 109, which is converted into audio signal and exports,.Moreover, audio output unit 103
The relevant audio output of specific function performed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..
A/V input units 104 are used to receive audio or video signal.A/V input units 104 can include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Picture frame after processing may be displayed on display unit 106.Picture frame after the processing of graphics processor 1041 can be deposited
Storage is transmitted in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (voice data), and can be voice data by such acoustic processing.Audio (voice) data after processing can
To be converted to the form output that mobile communication base station can be sent to via radio frequency unit 101 in the case of telephone calling model.
Microphone 1042 can implement various types of noises and eliminate (or suppression) algorithm to eliminate (or suppression) in reception and send sound
The noise produced during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, the application available for identification mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared ray sensor, details are not described herein.
Display unit 106 is used for the information for showing by information input by user or being supplied to user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 1061.
User input unit 107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 107 may include contact panel 1071 with
And other input equipments 1072.Contact panel 1071, also referred to as touch-screen, collect user on it or neighbouring touch operation
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 1071 or in contact panel 1071
Neighbouring operation), and corresponding attachment device is driven according to formula set in advance.Contact panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
Contact coordinate is converted into, then gives processor 110, and the order that processor 110 is sent can be received and performed.In addition, can
To realize contact panel 1071 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
Include but be not limited to physical keyboard, in function key (such as volume control button, switch key etc.), trace ball, mouse, operation lever etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, when contact panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, contact panel 1071 and display panel
1061 be the component independent as two to realize the function that outputs and inputs of mobile terminal, but in certain embodiments, can
The function that outputs and inputs of mobile terminal is realized so that contact panel 1071 and display panel 1061 is integrated, is not done herein specifically
Limit.
Interface unit 108 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 100.For example,
External device (ED) can include wired or wireless head-band earphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storage software program and various data, and memory 109 can be that a kind of storage of computer is situated between
Matter, the memory 109 are stored with mobile terminal operation responder of the present invention.Memory 109 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 109 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
A part, by running or performing the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109, perform the various functions and processing data of mobile terminal, so as to carry out integral monitoring to mobile terminal.Such as
Processor 110 performs the mobile terminal operation responder in memory 109, to realize mobile terminal operation responder of the present invention
The step of each embodiment of method.
Processor 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and
Modem processor, wherein, application processor mainly handles operating system, user interface and application program etc., modulation /demodulation
Processor mainly handles wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110
In.
Mobile terminal 100 can also include the power supply 111 (such as battery) to all parts power supply, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
For the ease of understanding the embodiment of the present invention, below to the communications network system that is based on of mobile terminal of the present invention into
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system Organization Chart provided in an embodiment of the present invention, the communication network system
Unite includes UE (User Equipment, the use for communicating connection successively for the LTE system of universal mobile communications technology, the LTE system
Family equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, evolved UMTS lands
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned mobile terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connected with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 can include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling between EPC203, there is provided carrying and connection management.HSS2032 is all to manage for providing some registers
Such as the function of attaching position register (not shown) etc, and preserve some and used in relation to service features, data rate etc.
The dedicated information in family.All customer data can be transmitted by SGW2034, and PGW2035 can provide the IP of UE 201
Address is distributed and other functions, and PCRF2036 is strategy and the charging control strategic decision-making of business data flow and IP bearing resources
Point, it selects and provides available strategy and charging control decision-making with charge execution function unit (not shown) for strategy.
IP operation 204 can include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art it is to be understood that the present invention not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And following new network system etc., do not limit herein.
Based on above-mentioned mobile terminal hardware configuration and communications network system, image processing method of the present invention and movement are proposed
The each embodiment of terminal.
The present invention provides a kind of image processing method, in one embodiment of image processing method, with reference to Fig. 7, this method bag
Include：
Step S10, obtains pending target image, and the overall of preset multiple is carried out to target image and is amplified to generate
Enlarged drawing；And subregion is carried out to enlarged drawing to form multiple grid regions；
Pending target image can be the photo obtained by mobile terminal is taken pictures, or mobile terminal is in shooting process
The image of view-finder collection, mobile terminal can be according to touch commands input by user, in the image that photo and view-finder gather
Determine pending target image.After target image is determined, overall amplification is carried out to target image, amplification factor is default
Multiple, such as preset multiple are 1.2 times, and amplification mode is centered on target image geometric center, to all pictures of target image
Element carries out the amplification of preset multiple, and then obtains enlarged drawing.After enlarged drawing is generated, according to default grid regions line-spacing
With row away from subregion is carried out to enlarged drawing, formed it is multiple be uniformly distributed, the grid regions of area equation, line-spacing and row are away from can have movement
Terminal default setting or mobile terminal user are set.As shown in figure 3, it is multiple grid regions Q by enlarged drawing A subregions.
Step S20 is right according to the warp parameters of reception and each grid regions and the distribution distance of enlarged drawing reference center
Each grid regions carry out distortion processing, and to generate warp image, the distribution distance of wherein grid regions is bigger, at the distortion of the grid regions
The torsion resistance of reason is bigger；
Warp parameters are the parameter of measurement that distortion processing is carried out to enlarged drawing, and the numerical value of warp parameters is bigger, are shown pair
The benchmark degreeof tortuosity of enlarged drawing is bigger, is then based on warp parameters and distortion processing is carried out to enlarged drawing, with reference to Fig. 3, turns round
Song processing is to stretch the image of each grid regions Q to four apex angle directions of enlarged drawing A, and wherein distribution distance is grid regions Q
To the distance of reference center O, the distribution distance of grid regions Q is bigger, and the torsion resistance of the distortion processing of the grid regions is bigger, i.e. distance
Grid regions more remote reference center O, it is bigger to the level of stretch of the grid regions to its correspondence enlarged drawing A corner, for example, grid
The distribution distance of area Q1, Q2, Q3, Q4 and Q5 distance reference center O is respectively L1, L2, L3, L4 and L5, wherein L3>L2>L1, L5
>L4>L1, so that the degreeof tortuosity of Q3 is more than Q2, the degreeof tortuosity of Q2 is more than Q1, and the degreeof tortuosity of Q5 is more than Q4, the distortion of Q4
Degree is more than Q1, and Q1, Q2, Q3, Q4 and Q5 are using the corner in the enlarged drawing lower left corner as draw direction.Similarly, grid regions
Which corner of enlarged drawing is inclined to, then the grid regions carry out image stretch towards this corner being inclined to.
Alternatively, the step of overall amplification of preset multiple is to generate enlarged drawing is carried out in step S20 to target image
Include afterwards：
Step S41, is identified main body in enlarged drawing, judges to whether there is personage's main body in enlarged drawing；
Based on human bioequivalence and recognition of face related algorithm, each main body included in enlarged drawing is identified, example
As human body has three obvious characteristics on head, body and four limbs, and three features have given shape, based on this, are putting
Human body is recognized whether in big image, if in the presence of the main body with head, body and four limbs characteristic matching, is determined as human body,
And then judge that there are personage's main body in enlarged drawing.Certainly, if there are face in identification enlarged drawing, it can determine that the face pair
Answer body behaviour owner's body.
Step S42, if there are personage's main body in enlarged drawing, according to personage position of personage's main body in enlarged drawing
Put, determine the reference center of enlarged drawing；
Step S43, if personage's main body is not present in enlarged drawing, according to the geometric center position of enlarged drawing, determines
The reference center of enlarged drawing.
The image processing method of the present invention is primarily adapted for use in the image procossing for including personage's main body, if so in enlarged drawing
There are personage's main body, personage's main body is emphasis processing region, then using character positions of personage's main body in enlarged drawing as ginseng
Pass the examination the heart, character positions can with when the position of centre of gravity of the personage's main body or center of personage's main body body overlay area.If
Personage's main body is not present in enlarged drawing, then the design emphasis of the enlarged drawing does not lie in personage's main body, is in enlarged drawing
The scenery of the heart carries out highlighting processing, then according to the geometric center position of enlarged drawing, determines the reference center of enlarged drawing.So as to
The implementation chosen to reference center in enlarged drawing is realized, in enlarged drawing during someone owner's body, preferentially with personage's main body
Character positions be reference center, the more conducively image processing effect to enlarged drawing saliency personage.
Further, the character positions in step S42 according to personage's main body in enlarged drawing, determine the ginseng of enlarged drawing
Pass the examination the heart the step of include：
Step S421, judges to whether there is multiple personage's main bodys in enlarged drawing, if there are multiple personages in enlarged drawing
Main body, the then position by personage's main body of area coverage maximum in enlarged drawing, the reference center as enlarged drawing；
Step S422, if one-man owner's body in enlarged drawing, personage's main body in enlarged drawing is being amplified
Position in image, the reference center as enlarged drawing.
There may be multiple personage's main bodys generally in photo, the larger personage's main body of accounting is generally user in photo
Shooting personage during photo is shot, other people owner's bodies are probably to form interference since contingency reason enters shooting area two,
So when there are multiple personage's main bodys in enlarged drawing, position of the personage's main body of area coverage maximum in enlarged drawing is made
For the reference center of enlarged drawing, so that successive image processing is centered on personage's main body of area coverage maximum；If amplification
One-man owner's body in image, then personage's main body is the reference center of successive image processing, then by the people in enlarged drawing
Position of owner's body in enlarged drawing, the reference center as enlarged drawing.So as to which the quantitative classification of personage's main body be handled,
Realize the flexible setting of enlarged drawing reference center.Furthermore, it is necessary to the, it is emphasized that mesh of the image procossing enhanced processing of the present invention
Logo image allows personage's main body to be in the center of image as far as possible in shooting
Step S30, the reference center based on warp image, intercepts the warp image of preset ratio as image to be displayed.
It is to cut the warp image with the reference center (i.e. the reference center of enlarged drawing, both overlap) of warp image
Center, preset ratio can be set according to user demand, such as the warp image of preset ratio and initial target image size phase
Deng, so that with reference center with center, region equal with target image size in warp image is intercepted as image to be displayed,
As with reference to Fig. 4, image to be displayed C intercepted from warp image B, image to be displayed C encloses region by dotted line frame in Fig. 4.
In the present embodiment, by being amplified to obtain enlarged drawing to target image, then subregion is carried out to enlarged drawing
Form multiple grid regions, then according to the distribution of the warp parameters of reception and each grid regions and enlarged drawing reference center away from
From carrying out distortion processing to each grid regions, to generate warp image, be finally based on the reference center of warp image, interception is default
The warp image of ratio as image to be displayed, so as to fulfill in target image personage's main body integrally amplified successively and
Distortion is handled, and highlights the image in reference center region, then centered on personage's main body (personage's main body is closed on reference center)
Sectional drawing is carried out, so that the relative area of personage's main body in image to be displayed and overall accounting, protrude people in image to be displayed
Owner's body, it appears personage's main body stature is taller, leg is more slender, and then realizes the U.S. face tune to personage's entirety in image
It is whole, fish-eye part effect is realized from software.
Supplemented by assistant solve technique effect, now arrange and aid in illustrating as one example, such as in a target image, the people at center
The size of owner's body remains unchanged, the scenery and object scaled down around personage's main body to 50% original size so that
Personage's main body is opposite to become larger, and becomes a giant.Similarly, to the scenery around personage's main body and object scaled down extremely
Small percentage (such as 5%) originally, observer cannot discover at a glance in image (image to be displayed) outside personage's main body
Scenery and object be reduced, so as to will think that personage's main body becomes tall and big and very thin.
Further, in another embodiment of image processing method of the present invention, step S30 according to the warp parameters of reception with
And each grid regions and the distribution distance of enlarged drawing reference center, distortion processing is carried out to each grid regions, to generate warp image
The step of include：
Step S31, receives user's input or the warp parameters automatically generated, and warp parameters include horizontal twisting radian and erect
Straight distortion radian；
Warp parameters can be that user according to demand sets mobile terminal input or mobile terminal system acquiescence
Put, warp parameters determine the degreeof tortuosity of enlarged drawing, i.e. warp parameters determine character motif or several in enlarged drawing
The degreeof tortuosity of what central area, highlight degree.In one embodiment, warp parameters include horizontal twisting radian and vertical distortion
Radian, horizontal twisting radian are enlarged drawing grid regions stretching distortion reference degree in the horizontal direction, similarly, vertical distortion
Radian distorts reference degree for stretching of the enlarged drawing grid regions in vertical direction.Such as the warp parameters of reception for (10%,
10%), then horizontal twisting radian is 10%, and the vertical radian that distorts is 10%, wherein the definition of distortion radian exists for warp image
The length Ld and enlarged drawing in certain direction certain direction the difference of length L and the ratio of L, that is, distort radian=[(Ld-L)/
L] * 100%, distortion radian is generally drawn by horizontal twisting radian and vertical distortion radian, with reference to Fig. 4 and Fig. 5, horizontal twisting arc
H_Distortion=[(Hd-H)/H] * 100% is spent, wherein, Hd is the first level length of warp image B horizontal directions, and H is
Do not make the second horizontal length of the enlarged drawing A horizontal directions of distortion before processing；Vertical torsion resistance V_Distortion=[(Vd-
V)/V] * 100%., Vd is the first vertical length of warp image B vertical directions, and V is the enlarged drawing A for not making to distort before processing
Second vertical length of vertical direction.
Step S32, according to horizontal twisting radian and the vertical benchmark direction of twist and base for distorting radian, determining enlarged drawing
Quasi- distortion radian；
Pythagorean theorem can be based on, with reference to Fig. 6, using warp image B reference centers O as geometric center, is for B points by warp image
Tetra- regions of P1, P2, P3 and P4, with the corresponding first level length of horizontal twisting radian and vertical distortion radian corresponding first
Vertical length is right-angle side, the intersection point form right angle triangle by two right-angle sides of the reference center of warp image B, straight according to this
The catercorner length of angle hypotenuse length and enlarged drawing draw benchmark distort radian, will the length of the hypotenuse with it is right
The business of the difference of diagonal length divided by the catercorner length distorts radian on the basis of being.
Specifically, step S32 is according to horizontal twisting radian and the vertical benchmark distortion side for distorting radian, determining enlarged drawing
Include to the step of benchmark distortion radian：
According to horizontal twisting radian and vertical distortion radian, direction of twist angle and benchmark distortion radian are determined；
Using enlarged drawing reference center as vertex, using direction of twist angle as angle, determine towards enlarged drawing corner base
Quasi- direction of twist.
It is perpendicular using the first vertical length Vd in the latter half of Fig. 6 with reference to Fig. 6 by taking the P1 regions of warp image B as an example
Nogata to right-angle side, using first level length Hd as horizontal direction right-angle side, draw the bevel edge in F1 directions, bevel edge and horizontal direction
The intersection point of right-angle side is the reference center of warp image B, so that the benchmark direction of twist in P1 regions is using reference center as starting point
F1 directions, i.e., the deflection of F1 directions and horizontal direction for level right angle side and bevel edge angle；Similarly, it is vertical long with first
Degree Vd is that vertical direction right-angle side difference endpoint with first level length Hd is that horizontal direction right-angle side difference endpoint is spliced,
The right angled triangle corresponding to P2, P3 and P4 region is formed, so that the benchmark direction of twist in P2, P3 and P4 region is obtained one by one,
The benchmark direction of twist in four, P1, P2, P3 and P4 region region is the benchmark direction of twist towards enlarged drawing corner.Wherein
The reference center of enlarged drawing and the reference center of warp image are same point.
Specifically, step S32 is according to horizontal twisting radian and the vertical benchmark distortion side for distorting radian, determining enlarged drawing
Include to the step of benchmark distortion radian：
According to horizontal twisting radian and vertical distortion radian, direction of twist angle and benchmark distortion radian are determined；
Using enlarged drawing reference center as vertex, using direction of twist angle as angle, determine towards enlarged drawing corner base
Quasi- direction of twist.
Step S33, distorts radian and the distribution distance of each grid regions according to benchmark, determines the actual distortion arc of each grid regions
Degree, wherein distribution distance is bigger, and actual distortion radian is bigger；
Fig. 5 and Fig. 6 midpoints a, b, c and d are distortion figures on the benchmark direction of twist in warp image P1, P2, P3 and P4 regions
As boundary point, reference center to each boundary point and line direction be each region of warp image benchmark direction of twist, i.e., extremely
The benchmark direction of twist of enlarged drawing corner.Distribution distance for grid regions to warp image reference center distance (or claim grow
Degree), based on benchmark distorts radian, the distribution distance of grid regions is bigger, its actual distortion radian is bigger.
Specifically, step S33 distorts radian and the distribution distance of each grid regions according to benchmark, determines the reality of each grid regions
The step of distorting radian includes：
According to the distribution distance of each grid regions and enlarged drawing reference center, the enhancement coefficient of each grid regions is determined, wherein
The distribution distance of grid regions is bigger, and it is bigger which corresponds to enhancement coefficient；
Numerical value increase processing is carried out to benchmark distortion radian according to the enhancement coefficient of each grid regions, obtains the reality of each grid regions
Border distorts radian.
The distribution distance of grid regions is bigger, and the corresponding enhancement coefficient in the grid regions is bigger, the actual distortion arc of each grid regions
Degree can be after the products of enhancement coefficient and benchmark distortion radian of the grid regions, summation or product summation operation COMPREHENSIVE CALCULATING
As a result, wherein enhancement coefficient is bigger, the corresponding actual distortion radian of the enhancement coefficient is bigger.For example, referring to Fig. 3, for example, grid
The distribution distance of area Q1, Q2, Q3, Q4 and Q5 distance reference center O is respectively L1, L2, L3, L4 and L5, wherein L3>L2>L1, L5
>L4>L1, so that the enhancement coefficient of Q3 is more than the enhancement coefficient of Q2, the actual distortion radian of Q3 is more than the actual distortion radian of Q2,
And then Q3 degreeof tortuosities are more than Q2, similarly understand that the degreeof tortuosity of Q2 is more than Q1, the degreeof tortuosity of Q5 is more than Q4, the distortion journey of Q4
Degree is more than Q1, and Q1, Q2, Q3, Q4 and Q5 are using the benchmark direction of twist of the corner towards the enlarged drawing lower left corner as stretching
Direction.
Step S34, along benchmark direction of twist, distorts each grid regions of enlarged drawing according to actual distortion radian
Processing, wherein actual distortion radian is bigger, the torsion resistance of the grid regions is bigger.
Distortion processing is that the image of each grid regions is stretched along corresponding benchmark direction of twist, wherein grid regions
Actual distortion radian it is bigger, the stretch range of the grid regions is bigger, namely actual distortion radian is bigger, and grid regions are along benchmark
The stretch range that direction of twist carries out is bigger, so that the torsion resistance of the grid regions is bigger.
Specifically, step S34 is along benchmark direction of twist, according to actual distortion radian to each grid regions of enlarged drawing into
The step of row distortion processing, includes：
Each grid regions of enlarged drawing are carried out by image stretch to corresponding benchmark direction of twist according to actual distortion radian,
To generate warp image.
When carrying out distortion processing to enlarged drawing, actual distortion radian and the benchmark distortion side of each grid regions are first determined
To, then according to the actual distortion radian of each grid regions, image stretch is carried out along the benchmark direction of twist of the grid regions, its
Middle actual distortion radian is bigger, and the stretch range for carrying out image stretch along corresponding benchmark direction of twist is bigger, after the completion of stretching
Warp image is generated, such warp image takes on the effect of " distorting outwardly ", i.e., warp image is in center to outer peripheral areas
To plane where the vertical warp image, direction distorts inwards, as shown in figure 3, enlarged drawing passes through along benchmark direction of twist
After stretching, warp image B is generated.
In the present embodiment, based on horizontal twisting radian and the vertical benchmark distortion side for distorting radian, determining enlarged drawing
Radian is distorted to benchmark；The distribution distance of each grid regions is then based on, determines the actual distortion radian of each grid regions, further along
The benchmark direction of twist of each grid regions, corresponds to actual distortion radian based on each grid regions and carries out image stretch, generate warp image,
So as to by it is a kind of realize it is relatively simple in a manner of, realize and enlarged drawing distorted, realize reference center in enlarged drawing
Respective regions (such as personage's main body) are highlighted and amplified, and are realized to the integrated regulation of personage's main body in image and U.S. face.
In addition, after the warp image generated based on the warp parameters for receiving user's input or automatically generating, detection
Degreeof tortuosity of the adjustment to enlarged drawing is still needed to user, the inputting interface of warp parameters can be shown, so that user is according to itself
Demand inputs new warp parameters to inputting interface, and then mobile terminal receives new warp parameters and enlarged drawing is distorted
Processing, untill user is satisfied with warp image, realizes adjustment of the user to the torsion resistance of warp image.
The present invention also provides a kind of image processing apparatus, described image processing unit includes：
Amplification module, for obtaining pending target image, and carries out target image the overall of preset multiple and amplifies
To generate enlarged drawing；
Division module, for forming multiple grid regions to enlarged drawing progress subregion；
Distort module, for the warp parameters according to reception and each grid regions and enlarged drawing reference center distribution away from
From carrying out distortion processing to each grid regions, to generate warp image, the distribution distance of wherein grid regions is bigger, the grid regions
The torsion resistance for distorting processing is bigger；
Interception module, for the reference center based on warp image, intercepts the warp image of preset ratio as to be shown
Image.
The present invention also provides a kind of mobile terminal, the mobile terminal includes：Memory, processor and it is stored in described
On memory and the image processing program that can run on the processor, described image processing routine are performed by the processor
The step of each embodiment of the above-mentioned image processing methods of Shi Shixian.
The present invention also provides a kind of computer-readable recording medium, image is stored with the computer-readable recording medium
The step of processing routine, described image processing routine realizes each embodiment of above-mentioned image processing method when being executed by processor.
In the embodiment of image processing apparatus of the present invention, mobile terminal and computer-readable recording medium, contain
The all technical characteristic of each embodiment of above-mentioned image processing method is stated, content and above-mentioned image processing method are expanded and explained to specification
Each embodiment of method is essentially identical, does not do tired state herein.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And other elements that are not explicitly listed are further included, or further include as this process, method, article or device institute inherently
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 are other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
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 embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a mobile terminal (can be mobile phone, computer, takes
Be engaged in device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
The embodiment of the present invention is described above in conjunction with attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make very much
Form, these are belonged within the protection of the present invention.
Claims (10)
1. a kind of image processing method, it is characterised in that described image processing method includes：
Pending target image is obtained, and the overall of preset multiple is carried out to target image and is amplified to generate enlarged drawing；And
Subregion is carried out to enlarged drawing to form multiple grid regions；
According to the warp parameters of reception and each grid regions and the distribution distance of enlarged drawing reference center, each grid regions are carried out
Distortion is handled, and to generate warp image, the distribution distance of wherein grid regions is bigger, and the torsion resistance of the distortion processing of the grid regions is got over
Greatly；
Reference center based on warp image, intercepts the warp image of preset ratio as image to be displayed.
2. image processing method as claimed in claim 1, it is characterised in that described that the whole of preset multiple is carried out to target image
Include after the step of body amplification is to generate enlarged drawing：
Main body in enlarged drawing is identified, judges to whether there is personage's main body in enlarged drawing；
If, according to character positions of personage's main body in enlarged drawing, enlarged drawing is determined there are personage's main body in enlarged drawing
The reference center of picture；
If personage's main body is not present in enlarged drawing, according to the geometric center position of enlarged drawing, the ginseng of enlarged drawing is determined
Pass the examination the heart.
3. image processing method as claimed in claim 2, it is characterised in that it is described according to personage's main body in enlarged drawing
The step of character positions, the reference center for determining enlarged drawing, includes：
Judge to whether there is multiple personage's main bodys in enlarged drawing, if there are multiple personage's main bodys in enlarged drawing, will covering
Position of the personage's main body of area maximum in enlarged drawing, the reference center as enlarged drawing；
If one-man owner's body in enlarged drawing, by position of personage's main body in enlarged drawing in enlarged drawing,
Reference center as enlarged drawing.
4. image processing method as claimed in claim 1, it is characterised in that the warp parameters according to reception and each net
Each grid regions are carried out distortion processing by the distribution distance of lattice area and enlarged drawing reference center, the step of to generate warp image
Including：
User's input or the warp parameters automatically generated are received, warp parameters include horizontal twisting radian and vertical distortion radian；
According to the horizontal twisting radian and vertical distortion radian, the benchmark direction of twist and benchmark for determining enlarged drawing distort arc
Degree；
Radian and the distribution distance of each grid regions are distorted according to benchmark, the actual distortion radian of each grid regions is determined, wherein being distributed
Distance is bigger, and actual distortion radian is bigger；
Along benchmark direction of twist, distortion processing is carried out to each grid regions of enlarged drawing according to actual distortion radian, wherein in fact
Border distortion radian is bigger, and the torsion resistance of the grid regions is bigger.
5. image processing method as claimed in claim 4, it is characterised in that described according to the horizontal twisting radian and vertical
Radian is distorted, determines that the step of benchmark direction of twist of enlarged drawing and benchmark distort radian includes：
According to horizontal twisting radian and vertical distortion radian, direction of twist angle and benchmark distortion radian are determined；
Using enlarged drawing reference center as vertex, using the direction of twist angle as angle, determine towards enlarged drawing corner base
Quasi- direction of twist.
6. image processing method as claimed in claim 4, it is characterised in that described that radian and each grid regions are distorted according to benchmark
Distribution distance, the step of actual distortion radian for determining each grid regions includes：
According to the distribution distance of each grid regions and enlarged drawing reference center, the enhancement coefficient of each grid regions, wherein grid are determined
The distribution distance in area is bigger, and it is bigger which corresponds to enhancement coefficient；
Numerical value increase processing is carried out to benchmark distortion radian according to the enhancement coefficient of each grid regions, obtains the actual torsion of each grid regions
Bent radian.
7. the image processing method as described in claim 4 to 6 any one, it is characterised in that described along benchmark distortion side
To each grid regions of enlarged drawing are carried out with the step of distortion is handled according to actual distortion radian includes：
Each grid regions of enlarged drawing are carried out by image stretch to corresponding benchmark direction of twist according to actual distortion radian, with life
Into warp image.
8. a kind of image processing apparatus, it is characterised in that described image processing unit includes：
Amplification module, for obtaining pending target image, and carries out target image the overall amplification of preset multiple with life
Into enlarged drawing；
Division module, for forming multiple grid regions to enlarged drawing progress subregion；
Module is distorted, for the warp parameters according to reception and each grid regions and the distribution distance of enlarged drawing reference center,
Distortion processing is carried out to each grid regions, to generate warp image, the distribution distance of wherein grid regions is bigger, the distortion of the grid regions
The torsion resistance of processing is bigger；
Interception module, for the reference center based on warp image, intercepts the warp image of preset ratio as image to be displayed.
9. a kind of mobile terminal, it is characterised in that the mobile terminal includes：Memory, processor and it is stored in described deposit
On reservoir and the image processing program that can run on the processor, when described image processing routine is performed by the processor
The step of realizing the image processing method as any one of claim 1 to 7.
10. a kind of computer-readable recording medium, it is characterised in that be stored with the computer-readable recording medium at image
Program is managed, the image procossing as any one of claim 1 to 7 is realized when described image processing routine is executed by processor
The step of method.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108765274A (en) * | 2018-05-31 | 2018-11-06 | 北京市商汤科技开发有限公司 | A kind of image processing method, device and computer storage media |
| CN108830784A (en) * | 2018-05-31 | 2018-11-16 | 北京市商汤科技开发有限公司 | A kind of image processing method, device and computer storage medium |
| CN109840059A (en) * | 2019-01-29 | 2019-06-04 | 北京字节跳动网络技术有限公司 | Method and apparatus for displaying images |
| CN109949213A (en) * | 2019-03-15 | 2019-06-28 | 百度在线网络技术（北京）有限公司 | Method and apparatus for generating image |
| CN110490196A (en) * | 2019-08-09 | 2019-11-22 | Oppo广东移动通信有限公司 | Subject detection method and apparatus, electronic equipment, computer readable storage medium |
| CN111145093A (en) * | 2019-12-20 | 2020-05-12 | 北京五八信息技术有限公司 | Image display method, image display device, electronic device, and storage medium |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108765274A (en) * | 2018-05-31 | 2018-11-06 | 北京市商汤科技开发有限公司 | A kind of image processing method, device and computer storage media |
| CN108830784A (en) * | 2018-05-31 | 2018-11-16 | 北京市商汤科技开发有限公司 | A kind of image processing method, device and computer storage medium |
| CN109840059A (en) * | 2019-01-29 | 2019-06-04 | 北京字节跳动网络技术有限公司 | Method and apparatus for displaying images |
| CN109840059B (en) * | 2019-01-29 | 2020-05-15 | 北京字节跳动网络技术有限公司 | Method and apparatus for displaying image |
| CN109949213A (en) * | 2019-03-15 | 2019-06-28 | 百度在线网络技术（北京）有限公司 | Method and apparatus for generating image |
| CN109949213B (en) * | 2019-03-15 | 2023-06-16 | 百度在线网络技术（北京）有限公司 | Method and apparatus for generating image |
| CN110490196A (en) * | 2019-08-09 | 2019-11-22 | Oppo广东移动通信有限公司 | Subject detection method and apparatus, electronic equipment, computer readable storage medium |
| CN111145093A (en) * | 2019-12-20 | 2020-05-12 | 北京五八信息技术有限公司 | Image display method, image display device, electronic device, and storage medium |
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