CN108769522A - Image processing terminal and image processing method - Google Patents
Image processing terminal and image processing method Download PDFInfo
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- CN108769522A CN108769522A CN201810579238.2A CN201810579238A CN108769522A CN 108769522 A CN108769522 A CN 108769522A CN 201810579238 A CN201810579238 A CN 201810579238A CN 108769522 A CN108769522 A CN 108769522A
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- image
- target image
- master controller
- image processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/62—Control of parameters via user interfaces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
Abstract
The embodiment of the invention discloses a kind of image processing terminal and image processing methods, belong to technical field of image processing, which includes：Photographic device, the photographic device obtain target image；There is the first input interface and the first output interface, first input interface to receive the target image from the photographic device for master controller, the master controller；Display screen, the display screen are connect with first output interface, and the display screen shows the preview image of the first output interface output；And external image processor, the external image processor handle the target image, and target image is sent to the main controller by treated.By the scheme of the application, the efficiency of image procossing is improved.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to are based on image processing terminal and image processing method.
Background technology
At this stage, the image of terminal device acquisition camera is handled, and has 2 kinds of modes, common mode：(1) it uses
Processor module inside terminal device, such as ISP carry out image procossing, realize conversion of the RAW data to yuv data.(2) make
With external processor module, such as external DSP, image procossing is carried out, realizes conversion of the RAW data to yuv data, then be input to
Terminal device processor is preserved.
Fig. 1 show the flow chart of the typical image acquisition and processing of current handheld terminal, it can be seen that entirely handles
Flow is that data are switched to the domains YUV by the mode of assembly line by the domains RAW, handles image if it is the mode of external DSP, then handles
Data are the domains RAW, and data after treatment are converted into YUV or remain as RAW data transmissions and further locate to main control chip
Reason.Handheld terminal image processing flow lacks the domains the YUV processing in master controller rear end, some special algorithms would become hard to realize.
Since the limitation of current handheld terminal processes processor or additional algorithm need to be handled in the domains YUV, such as
Fruit needs to consume excessive cpu resource, if using external using CPU processing, such as multiframe synthesis, noise reduction, U.S. face
DSP processing can only be between image capture module and master controller, for master control due to current architecture design
Belong to front end, the domains the YUV Back end data after being handled for main control processor completion, there is presently no methods to carry out external DSP
Processing.
In view of the above-mentioned problems, there is an urgent need for a kind of completely new image processing terminals and image processing method.
Invention content
In view of this, a kind of image processing terminal of offer of the embodiment of the present invention and image processing method, at least part of solution
Certainly problems of the prior art.
In a first aspect, an embodiment of the present invention provides a kind of image processing terminals, including：
Photographic device, the photographic device obtain target image；
Master controller, the master controller have the first input interface and the first output interface, first input interface
The target image is received from the photographic device；
Display screen, the display screen are connect with first output interface, and the display screen shows that first output connects
The preview image of mouth output；And
External image processor, the external image processor handle the target image, and by treated
Target image is sent to the main controller.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second output interface, described
Second output interface sends the target image that first input interface receives to the external image processor.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second input interface, described
Second input interface receives treated the target image.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller carry out first to the target image
Graphics process forms preview image.
A kind of specific implementation according to the ... of the embodiment of the present invention, the external image image processor is to the target pair
As carrying out second graph processing, treated the target image is formed.
A kind of specific implementation according to the ... of the embodiment of the present invention, treated the target image and the target image
With different image data formats.
A kind of specific implementation according to the ... of the embodiment of the present invention, described image processing terminal further include：
Memory, treated that target image is stored in the memory by described for the master controller.
Second aspect, the embodiment of the present invention additionally provide a kind of image processing method, including：
The target image received from photographic device is received using the first input interface of master controller；
Data processing is carried out to the target image, forms preview image；
By the first output interface of the master controller preview image is shown in display screen；
The target image is handled using external image processor, and target image is sent to institute by treated
It states main controller and executes image preservation operation.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second output interface, described
Second output interface sends the target image that first input interface receives to the external image processor.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second input interface, described
Second input interface receives treated the target image.
A kind of specific implementation according to the ... of the embodiment of the present invention, it is described that data processing, shape are carried out to the target image
At preview image, including：
The first graphics process is carried out to the target image using the master controller, forms preview image.
A kind of specific implementation according to the ... of the embodiment of the present invention, it is described to utilize external image processor to the target figure
Picture is handled, including：
Second graph processing is carried out to the target object using the external image image processor, forms the processing
Target image afterwards.
A kind of specific implementation according to the ... of the embodiment of the present invention, treated the target image and the target image
With different image data formats.
A kind of specific implementation according to the ... of the embodiment of the present invention, described by treated, target image is sent to the master
It controls device and executes image preservation operation, including：
Treated described in the master controller general, and target image preserves in memory.
Image processing terminal and image processing method provided in an embodiment of the present invention are carried out in master controller rear end at image
Reason is to meet the needs of special algorithm.Specific algorithm can be needed to handle in the domains YUV, and processing speed requirement
Height, avoiding master controller CPU cannot meet the requirements or can make master controller cpu load is overweight to cause system interim card, performance
Reduce, as frame per second reduce, it is not smooth phenomena such as.The present invention program has the advantages that reduce cpu load, for processing capacity deficiency
Platform or equipment, the treatment effect of flagship platform can also be reached, have cost advantage.Meanwhile the present invention has information
Protective feature, the algorithm of particular vendor or important code may operate in external image processor, protect core skill
Art will not be because of the leakage for being integrated into hand-held terminal processor and causing correlative code, technology.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the flow diagram of the typical image acquisition and processing of terminal in the prior art；
Fig. 2 is a kind of hardware architecture diagram of image processing terminal provided in an embodiment of the present invention；
Fig. 3 is a kind of flow diagram of image processing method provided in an embodiment of the present invention；
Fig. 4 is a kind of image transmission flow schematic diagram provided in an embodiment of the present invention；
Fig. 5 is that a kind of image provided in an embodiment of the present invention receives flow diagram；
Fig. 6 is a kind of electronic equipment structural schematic diagram provided in an embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The application problem to be solved is how in the rear end of hand-held terminal device to carry out image procossing, then is transmitted back to master
It controls processor and carries out after-treatment or preservation, to meet the needs of special algorithm.
Relative to the mode for using handheld terminal CPU to carry out the domains YUV algorithm, the present invention program has reduction cpu load
Advantage can also reach the treatment effect of flagship platform for the insufficient platform of processing capacity or equipment, have cost excellent
Gesture.The present invention has the characteristics that information protection simultaneously, and the algorithm or core code of particular vendor may operate in external
Processor, protection core technology will not cause correlative code and technology to leak because of hand-held terminal processor is integrated into.
Fig. 1 show the flow chart of the typical image acquisition and processing of current handheld terminal, it can be seen that entirely handles
Flow is that data are switched to the domains YUV by the mode of assembly line by the domains RAW, handles image if it is the mode of external DSP, then handles
Data are the domains RAW, and data after treatment are converted into YUV or remain as RAW data transmissions and further locate to main control chip
Reason.Handheld terminal image processing flow lacks the domains the YUV processing in master controller rear end, some special algorithms would become hard to realize.
Referring to Fig. 2, an embodiment of the present invention provides a kind of image processing terminals, including：Photographic device, is shown master controller
Display screen, external image processor.
Photographic device is the image acquiring device of image processing terminal, and as an example, photographic device may be used more
The electronic component that can obtain image of type, for example, photographic device can be common CMOS camera, it can also depth
The photographic devices such as camera or infrared, laser, the photographic device obtain target image, the target figure that photographic device obtains
Picture can be the picture of static state, can also be dynamic video image (multiple frame images).
Master controller is the core component of image processing terminal, and the master controller is defeated with the first input interface and first
Outgoing interface.As an example, the first input interface can be common CSI interface, and the first output interface can be common
DSI interfaces.First input interface receives the target image from the photographic device, and target image can be still image
Or dynamic video.
Display screen is used for showing that the target image that photographic device obtains, the display screen connect with first output interface
It connects, since the image data that present photographic device obtains is larger, if directly showing what photographic device obtained on a display screen
Image data, due to needing to carry out data conversion to the initial data that photographic device obtains before display, this can greatly be accounted for
With the resource of master controller (for example, CPU), the image that display screen is shown can be caused phenomena such as interim card occur.For this purpose, master controller
The processing of lightweight is carried out to the original image that photographic device obtains, i.e., the preview image in original image is only extracted, after formation
Preview image exported to display screen by the first output interface, the display screen shows the pre- of first output interface output
Look at image.
User obtains after image, it usually needs image carry out specifically processing (for example, addition filter, execute it is specific
Image algorithm etc.), at this point, being internally integrated the external image procossing with specific image processing function in image processing terminal
Device, external image processor can integrate specific encrypted code, by the encrypted mode of hardware, can ensure specific image
The danger that processing code is divulged a secret.The external image processor handles the target image, and by treated
Target image is sent to the main controller, so, greatly alleviates the burden of primary processor.
It is according to the ... of the embodiment of the present invention in order to ensure that master controller and external image processor carry out effective data transmission
There is the second output interface, second output interface to be inputted described first for a kind of specific implementation, the master controller
Interface to the target image send the external image processor to.As an example, the second output interface can
To be DSI interfaces, the second input interface can be CSI interface, and so, master controller just needs have 2 image transmittings
Channel.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second input interface, described
Second input interface receives treated the target image.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller carry out first to the target image
Graphics process forms preview image.
A kind of specific implementation according to the ... of the embodiment of the present invention, the external image image processor is to the target pair
As carrying out second graph processing, treated the target image is formed.
A kind of specific implementation according to the ... of the embodiment of the present invention, treated the target image and the target image
With different image data formats, for example, target image is RAW numeric field datas, treated, and target object is YUV numeric field datas.
A kind of specific implementation according to the ... of the embodiment of the present invention, described image processing terminal further include：
Memory, treated that target image is stored in the memory by described for the master controller.
Referring to Fig. 3, the embodiment of the present invention additionally provides a kind of image processing method, including：
S301 receives the target image received from photographic device using the first input interface of master controller.
Photographic device is the image acquiring device of image processing terminal, and as an example, photographic device may be used more
The electronic component that can obtain image of type, for example, photographic device can be common CMOS camera, it can also depth
The photographic devices such as camera or infrared, laser, the photographic device obtain target image, the target figure that photographic device obtains
Picture can be the picture of static state, can also be dynamic video image (multiple frame images).
Master controller is the core component of image processing terminal, and the master controller is defeated with the first input interface and first
Outgoing interface.As an example, the first input interface can be common CSI interface, and the first output interface can be common
DSI interfaces.First input interface receives the target image from the photographic device, and target image can be still image
Or dynamic video.
S302 carries out data processing to the target image, forms preview image.
Display screen is used for showing that the target image that photographic device obtains, the display screen connect with first output interface
It connects, since the image data that present photographic device obtains is larger, if directly showing what photographic device obtained on a display screen
Image data, due to needing to carry out data conversion to the initial data that photographic device obtains before display, this can greatly be accounted for
With the resource of master controller (for example, CPU), the image that display screen is shown can be caused phenomena such as interim card occur.For this purpose, master controller
The processing of lightweight is carried out to the original image that photographic device obtains, i.e., the preview image in original image is only extracted, after formation
Preview image exported to display screen by the first output interface, the display screen shows the pre- of first output interface output
Look at image；And
S303 shows the preview image by the first output interface of the master controller in display screen.
S304 is handled the target image using external image processor, and target image is sent out by treated
It gives the main controller and executes image preservation operation.
User obtains after image, it usually needs and image carries out specifically processing (for example, addition filter etc.), at this point,
It is internally integrated the external image processor with specific image processing function in image processing terminal, external image processor can
It can ensure what specific image procossing code was divulged a secret by the encrypted mode of hardware to integrate specific encrypted code
It is dangerous.The external image processor handles the target image, and will treated that target image is sent to is described
Main controller so greatly alleviates the burden of primary processor.
As a kind of example, the first input interface is CSI0, and the first output interface is DSI0, and the second input interface is
CSI1, the first output interface are DSI1.Referring to Fig. 4, Fig. 4 is a kind of image transmission flow signal provided in an embodiment of the present invention
Figure, may include steps of：
S401, CSI0 receive vision sensor data；
S401, master controller handle vision sensor data；
S403 sends preview image data to display screen by DSI0 and shows；
S404 takes pictures data to external image processor by DSI1 transmissions；
S405, image processor carry out data processing.
Corresponding, Fig. 5 is that a kind of image provided in an embodiment of the present invention receives flow diagram, specifically, can be with
Include the following steps：
S501, by treated, data are sent to master controller to image processor by CSI1；
S502, master controller carry out extra process or do not handle；
S503 preserves data.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second output interface, described
Second output interface sends the target image that first input interface receives to the external image processor.
A kind of specific implementation according to the ... of the embodiment of the present invention, the master controller has the second input interface, described
Second input interface receives treated the target image.
A kind of specific implementation according to the ... of the embodiment of the present invention, it is described that data processing, shape are carried out to the target image
At preview image, including：
The first graphics process is carried out to the target image using the master controller, forms preview image.
A kind of specific implementation according to the ... of the embodiment of the present invention, it is described to utilize external image processor to the target figure
Picture is handled, including：
Second graph processing is carried out to the target object using the external image image processor, forms the processing
Target image afterwards.
A kind of specific implementation according to the ... of the embodiment of the present invention, treated the target image and the target image
With different image data formats.
A kind of specific implementation according to the ... of the embodiment of the present invention, described by treated, target image is sent to the master
It controls device and executes image preservation operation, including：
Treated described in the master controller general, and target image preserves in memory.
Fig. 6 shows the structural schematic diagram of electronic equipment 60 provided in an embodiment of the present invention, and above-mentioned image processing terminal can
To be a kind of specific pattern of the electronic equipment, run in the electronic equipment 60 that above-mentioned image processing method can be shown in Fig. 6.
Electronic equipment 60 include at least one processor 601 (such as CPU), at least one input/output interface 604, memory 602, and
At least one communication bus 603, for realizing the connection communication between these components.At least one processor 601 is for executing
The executable module stored in memory 602, such as computer program.Memory 602 is non-transient memory (non-
Transitory memory), can include volatile memory, such as high-speed random access memory (RAM：Random
Access Memory), can also include nonvolatile memory (non-volatile memory), for example, at least a disk
Memory.By at least one input/output interface 604 (can be wired or wireless communication interface) realize with it is at least one
Communication connection between other network elements.
In some embodiments, memory 602 stores program 6021, and processor 601 executes program 6021, for holding
The embodiment of the aforementioned any image processing terminal based on electronic equipment of row.
The electronic equipment can exist in a variety of forms, including but not limited to：
(1) mobile communication equipment：The characteristics of this kind of equipment is that have mobile communication function, and to provide speech, data
Communication is main target.This Terminal Type includes：Smart mobile phone (such as iPhone), multimedia handset, functional mobile phone and low
Hold mobile phone etc..
(2) super mobile personal computer equipment：This kind of equipment belongs to the scope of personal computer, there is calculating and processing work(
Can, generally also have mobile Internet access characteristic.This Terminal Type includes：PDA, MID and UMPC equipment etc., such as iPad.
(3) portable entertainment device：This kind of equipment can show and play multimedia content.Such equipment includes：Audio,
Video player (such as iPod), handheld device, e-book and intelligent toy and portable car-mounted navigation equipment.
(4) particular server：The equipment for providing the service of calculating, the composition of server include processor, hard disk, memory, are
Bus of uniting etc., server is similar with general computer architecture, but due to needing to provide highly reliable service, is handling
Ability, stability, reliability, safety, scalability, manageability etc. are more demanding.
(5) other electronic equipments with data interaction function.
It should be noted that herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these.
There are any actual relationship or orders between entity or operation.Moreover, the terms "include", "comprise" or
Any other variant thereof is intended to cover non-exclusive inclusion by person, so that process, method including a series of elements, article
Or equipment includes not only those elements, but also include other elements that are not explicitly listed, or it is this to further include
The intrinsic element of process, method, article or equipment.In the absence of more restrictions, by sentence " including one
It is a ... " limit element, it is not excluded that there is also another in the process, method, article or apparatus that includes the element
Outer identical element.
Each embodiment in this specification is all made of relevant mode and describes, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.
For device embodiment, since it is substantially similar to the method embodiment, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicating, propagating or passing
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.
In the above-described embodiment, multiple steps or method can use storage in memory and by suitable instruction execution
The software or firmware that system executes are realized.For example, if realized with hardware, in another embodiment, can use
Any one of following technology well known in the art or their combination are realized：With for realizing logic work(to data-signal
The discrete logic of the logic gates of energy, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate
Array (PGA), field programmable gate array (FPGA) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of image processing terminal, which is characterized in that including：
Photographic device, the photographic device obtain target image；
Master controller, the master controller have the first input interface and the first output interface, and first input interface is from institute
It states photographic device and receives the target image；
Display screen, the display screen are connect with first output interface, and the display screen shows that first output interface is defeated
The preview image gone out；And
External image processor, the external image processor handle the target image, and will treated target
Image is sent to the main controller.
2. image processing terminal according to claim 1, it is characterised in that：
The master controller has the second output interface, the institute that second output interface receives first input interface
It states target image and sends the external image processor to.
3. image processing terminal according to claim 2, it is characterised in that：
The master controller has the second input interface, and second input interface receives treated the target image.
4. image processing terminal according to claim 1, it is characterised in that：
The master controller carries out the first graphics process to the target image, forms preview image.
5. image processing terminal according to claim 1, it is characterised in that：
The external image image processor carries out second graph processing to the target object, forms treated the target
Image.
6. image processing terminal according to claim 5, it is characterised in that：
Treated the target image has different image data formats from the target image.
7. image processing terminal according to claim 1, which is characterized in that described image processing terminal further includes：
Memory, treated that target image is stored in the memory by described for the master controller.
8. a kind of image processing method, which is characterized in that including：
The target image received from photographic device is received using the first input interface of master controller；
Data processing is carried out to the target image, forms preview image；
By the first output interface of the master controller preview image is shown in display screen；
The target image is handled using external image processor, and target image is sent to the master by treated
It controls device and executes image preservation operation.
9. image processing method according to claim 8, it is characterised in that：
The master controller has the second output interface, the institute that second output interface receives first input interface
It states target image and sends the external image processor to.
10. image processing method according to claim 9, it is characterised in that：
The master controller has the second input interface, and second input interface receives treated the target image.
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| CN111698414B (en) * | 2019-03-14 | 2021-11-16 | 北京小米移动软件有限公司 | Image signal processing method and device, electronic device and readable storage medium |
| CN111601019A (en) * | 2020-02-28 | 2020-08-28 | 北京爱芯科技有限公司 | Image data processing module and electronic equipment |
| CN111601019B (en) * | 2020-02-28 | 2021-11-16 | 北京爱芯科技有限公司 | Image data processing module and electronic equipment |
| CN111586312A (en) * | 2020-05-14 | 2020-08-25 | Oppo（重庆）智能科技有限公司 | Automatic exposure control method and device, terminal and storage medium |
| CN111586312B (en) * | 2020-05-14 | 2022-03-04 | Oppo（重庆）智能科技有限公司 | Automatic exposure control method and device, terminal and storage medium |
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