CN108986053A - Screen display method and device - Google Patents
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- CN108986053A CN108986053A CN201810957919.8A CN201810957919A CN108986053A CN 108986053 A CN108986053 A CN 108986053A CN 201810957919 A CN201810957919 A CN 201810957919A CN 108986053 A CN108986053 A CN 108986053A
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- G06T5/92—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20172—Image enhancement details
- G06T2207/20208—High dynamic range [HDR] image processing
Abstract
Present disclose provides a kind of screen display method and devices, belong to field of display technology.The described method includes: obtaining the object brightness gear of the target screen when performing image display based on target screen；According to the object brightness gear, the target mapping parameters of the target screen are determined, the corresponding mapping parameters of different brightness gears are different；Based on the target mapping parameters, contrast mapping is carried out to described image, to show described image in the target screen.The disclosure is by determining the mapping parameters of screen according to the corresponding brightness gear of screen, to complete contrast mapping to show image, since the corresponding mapping parameters of different brightness gears are different, so that the screen of different brightness can reach consistent display effect, the problem of being not in partially dark average brightness or region overexposure, improve the consistency that screen is shown.
Description
Technical field
This disclosure relates to field of display technology more particularly to a kind of screen display method and device.
Background technique
With the continuous development of display technology, high contrast, the extensive use of wide colour gamut screen and Media Provider HDR
(High Dynamic Range, high dynamic range) video source is supported, is shown for HDR video and is provided software and hardware basis.In general,
It is even higher that the maximum brightness of HDR video is defined as 1000nit (nit), and practical commercial display screen maximum brightness is in 300-
Between 700nit.Since perception of the human eye to brightness is not linear change, when display, needs to carry out contrast to HDR video to reflect
It penetrates, preferably to show video content in screen.
In the related technology, for avoid to each screen carry out individually mapping the high cost of bring, a kind of more common side
Method is, to occupy the screen parameter of probability distribution center screen in producing as standard, other screens use the screen to join
Number carries out contrast mapping, to show HDR video in screen.
Summary of the invention
The characteristic that contrast mapping is carried out based on brightness number is not accounted in the related technology to overcome, in production process not
Luminance difference with screen is larger, and corresponding contrast mapping curve can generate biggish offset, leads to the display effect of different screen
It is inconsistent, there is the problem of partially dark average brightness or region overexposure, the disclosure provides a kind of screen display method and device, institute
It is as follows to state technical solution:
According to the first aspect of the embodiments of the present disclosure, a kind of screen display method is provided, comprising:
When performing image display based on target screen, the object brightness gear of the target screen is obtained；
According to the object brightness gear, determine that the target mapping parameters of the target screen, different brightness gears are corresponding
Mapping parameters it is different；
Based on the target mapping parameters, contrast mapping is carried out to described image, described in showing in the target screen
Image.
In one possible implementation, the method also includes:
Obtain the brightness statistics distribution of screen；
It is distributed according to the brightness statistics, brightness degree stepping is carried out to screen, obtains multiple brightness gears；
For each brightness gear in the multiple brightness gear, corresponding mapping parameters are generated.
In one possible implementation, described to be distributed according to the brightness statistics, brightness degree point is carried out to screen
Shelves, comprising:
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range, with pre-
If brightness separation carries out brightness degree stepping to screen；Or,
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range and people
The brightness perception characteristics of eye carry out the brightness degree stepping of unequal interval to screen.
In one possible implementation, described for each brightness gear in the multiple brightness gear, it generates
Corresponding mapping parameters, comprising:
For each brightness gear, the corresponding maximum brightness of the brightness gear is determined；It is described most light using having
The screen of degree generates the mapping parameters of the brightness gear；Or,
Using specified screen, for each brightness gear, the maximum brightness by limiting the specified screen is described
The maximum brightness of brightness gear generates the mapping parameters of the brightness gear；Or,
For each brightness gear, the mapping parameters of the brightness gear are generated according to the simulation of the gamma value of screen.
In one possible implementation, the object brightness gear for obtaining the target screen, comprising:
Read the object brightness gear for being stored in the target screen；Or,
Read the maximum brightness information of the target screen；By the maximum brightness information and the progress of predetermined luminance gear
Match；It will be determined as the object brightness shelves with the brightness gear of the maximum brightness information matches in the predetermined luminance gear
Position.
In one possible implementation, described image is HDR image, and the display dynamic range of the target screen is small
In the dynamic range of the HDR image, the contrast mapping is for showing the dynamic range of the HDR image and details in institute
It states in target screen, with the original visual effect of HDR image described in the target Screen reproduction.
According to the second aspect of an embodiment of the present disclosure, a kind of screen display device is provided, comprising:
First obtains module, for obtaining the target of the target screen when performing image display based on target screen
Brightness gear；
Determining module is different for determining the target mapping parameters of the target screen according to the object brightness gear
The corresponding mapping parameters of brightness gear are different；
Mapping block carries out contrast mapping to described image, in the target for being based on the target mapping parameters
Screen shows described image.
In one possible implementation, described device further include:
Second obtains module, and the brightness statistics for obtaining screen are distributed；
Grading module carries out brightness degree stepping to screen, obtains multiple brightness for being distributed according to the brightness statistics
Gear；
Generation module, for generating corresponding mapping parameters for each brightness gear in the multiple brightness gear.
In one possible implementation, the grading module, is used for:
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range, with pre-
If brightness separation carries out brightness degree stepping to screen；Or,
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range and people
The brightness perception characteristics of eye carry out the brightness degree stepping of unequal interval to screen.
In one possible implementation, the generation module, is used for:
For each brightness gear, the corresponding maximum brightness of the brightness gear is determined；It is described most light using having
The screen of degree generates the mapping parameters of the brightness gear；Or,
Using specified screen, for each brightness gear, the maximum brightness by limiting the specified screen is described
The maximum brightness of brightness gear generates the mapping parameters of the brightness gear；Or,
For each brightness gear, the mapping parameters of the brightness gear are generated according to the simulation of the gamma value of screen.
In one possible implementation, described first module is obtained, is used for:
Read the object brightness gear for being stored in the target screen；Or,
Read the maximum brightness information of the target screen；By the maximum brightness information and the progress of predetermined luminance gear
Match；It will be determined as the object brightness shelves with the brightness gear of the maximum brightness information matches in the predetermined luminance gear
Position.
In one possible implementation, described image is HDR image, and the display dynamic range of the target screen is small
In the dynamic range of the HDR image, the contrast mapping is for showing the dynamic range of the HDR image and details in institute
It states in target screen, with the original visual effect of HDR image described in the target Screen reproduction.
According to the third aspect of an embodiment of the present disclosure, a kind of screen display device is provided, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to executing the executable instruction to complete first aspect and first aspect and appoint
Screen display method described in a kind of possible implementation.
According to the third aspect of an embodiment of the present disclosure, a kind of computer readable storage medium is provided, it is described computer-readable
Instruction is stored on storage medium, described instruction is executed by processor to complete first aspect and any possibility of first aspect
Implementation described in screen display method.
The technical scheme provided by this disclosed embodiment can include the following benefits:
When performing image display based on target screen, the corresponding object brightness gear of the target screen is obtained, and determine
Target mapping parameters corresponding with the object brightness gear, and then contrast mapping is carried out to image based on target mapping parameters, with
The image is shown in the target screen.By determining the mapping parameters of screen according to the corresponding brightness gear of screen, to complete
Contrast is mapped to show image, since the corresponding mapping parameters of different brightness gears are different, so that the screen of different brightness can
The problem of enough reaching consistent display effect, being not in partially dark average brightness or region overexposure, improve what screen was shown
Consistency.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of screen display method shown according to an exemplary embodiment.
Fig. 2 is a kind of flow chart of screen display method shown according to an exemplary embodiment.
Fig. 3 is that the process in each stage according to involved in an exemplary a kind of screen display method provided in this embodiment is shown
It is intended to.
Fig. 4 is a kind of block diagram of screen display device shown according to an exemplary embodiment.
Fig. 5 is a kind of block diagram of device shown according to an exemplary embodiment.
Specific embodiment
To keep the purposes, technical schemes and advantages of the disclosure clearer, below in conjunction with attached drawing to disclosure embodiment party
Formula is described in further detail.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is a kind of flow chart of screen display method shown according to an exemplary embodiment, as shown in Figure 1, the party
Method is in terminal, comprising the following steps:
In a step 101, when performing image display based on target screen, the object brightness shelves of the target screen are obtained
Position.
In a step 102, according to the object brightness gear, the target mapping parameters of the target screen, different brightness are determined
The corresponding mapping parameters of gear are different.
In step 103, the target mapping parameters are based on, contrast mapping is carried out to the image, with aobvious in the target screen
Show the image.
The method that the embodiment of the present disclosure provides obtains the target screen pair when performing image display based on target screen
The object brightness gear answered, and determine target mapping parameters corresponding with the object brightness gear, and then based on target mapping ginseng
Several pairs of images carry out contrast mapping, to show the image in the target screen.By being determined according to the corresponding brightness gear of screen
The mapping parameters of screen map to complete contrast to show image, since the corresponding mapping parameters of different brightness gears are different,
It is not in that average brightness is partially dark or region overexposure so that the screen of different brightness can reach consistent display effect
Problem improves the consistency that screen is shown.
In one possible implementation, this method further include:
Obtain the brightness statistics distribution of screen；
It is distributed according to the brightness statistics, brightness degree stepping is carried out to screen, obtains multiple brightness gears；
For each brightness gear in multiple brightness gear, corresponding mapping parameters are generated.
In one possible implementation, this is distributed according to the brightness statistics, carries out brightness degree stepping, packet to screen
It includes:
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；It is bright to preset based on the maximum brightness range
Degree interval carries out brightness degree stepping to screen；Or,
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range and human eye
Brightness perception characteristics carry out the brightness degree stepping of unequal interval to screen.
In one possible implementation, it should be generated corresponding for each brightness gear in multiple brightness gear
Mapping parameters, comprising:
For each brightness gear, the corresponding maximum brightness of brightness gear is determined；Using with the maximum brightness
Screen generates the mapping parameters of the brightness gear；Or,
Using specified screen, for each brightness gear, the maximum brightness by limiting the specified screen is the brightness
The maximum brightness of gear generates the mapping parameters of the brightness gear；Or,
For each brightness gear, the mapping parameters for generating the brightness gear are simulated according to the gamma value of screen.
In one possible implementation, the object brightness gear of the acquisition target screen, comprising:
Read the object brightness gear for being stored in the target screen；Or,
Read the maximum brightness information of the target screen；The maximum brightness information and predetermined luminance gear are matched；
Brightness gear in the predetermined luminance gear with the maximum brightness information matches is determined as the object brightness gear.
In one possible implementation, which is HDR image, and the display dynamic range of the target screen is less than should
The dynamic range of HDR image, contrast mapping is for showing the dynamic range of the HDR image and details in the target screen
In, in the original visual effect of the target Screen reproduction HDR image.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
Fig. 2 is a kind of flow chart of screen display method shown according to an exemplary embodiment, as shown in Fig. 2, the party
Method is in terminal, comprising the following steps:
In step 201, the brightness statistics distribution of screen is obtained.
Wherein, screen refers to the general designation for supporting the screen of display HDR image, and is not specific to a certain piece of screen.
It in the present embodiment, can be according to the maximum brightness information of different screen in production process, to the maximum brightness of screen
Information is counted, to obtain the brightness statistics distribution of screen.It can it should be noted that will record screen in production process
The maximum brightness information of display.
In step 202, it is distributed according to the brightness statistics, brightness degree stepping is carried out to screen, obtains multiple brightness shelves
Position.
In the present embodiment, it is distributed according to the brightness statistics, carrying out brightness degree stepping to screen includes following two reality
Existing mode:
The first implementation, stepping, the process include: to be distributed according to the brightness statistics at equal intervals, determine screen most
Big brightness range；Based on the maximum brightness range, brightness degree stepping is carried out to screen with predetermined luminance interval.
Wherein, the peak and minimum that screen maximum brightness can be determined by brightness statistics distribution, to obtain
The maximum brightness range of screen.
Wherein, preset interval can map the empirical value determination or adjustment influenced by brightness according to contrast, for example, this is default
Interval can be 20nit (nit) or 30nit etc., and the present embodiment is not construed as limiting this.
Second of implementation, unequal interval stepping, the process include: to be distributed according to the brightness statistics, determine screen
Maximum brightness range；Brightness perception characteristics based on the maximum brightness range and human eye carry out the brightness of unequal interval to screen
Grade stepping.
Wherein, it should be noted that human eye is to the perception of brightness be it is nonlinear, it is different to the sensitivitys of different brightness.
According to human eye to the difference of brightness sensitivity in the present embodiment, unequal interval stepping is carried out to brightness.Specifically, for human eye
The higher brightness range of sensitivity, is divided using lesser brightness separation.For the lower brightness of human eye sensitivity's degree
Range is divided using biggish brightness separation.For example, human eye is lower to high brightness sensitivity (such as 600-700nit),
Then divided using the brightness separation 40nit；Human eye is then used to higher (such as 400-500nit) compared with low-light level sensitivity
The brightness separation 20nit divides etc., and above-mentioned sensitivity brightness range and division are spaced only as an example, and the present embodiment does not make this
It limits.
It should be noted that the representation of brightness gear may include but be not limited to following two mode in the present embodiment:
First way, the representation of brightness gear are a brightness range；The second way indicates one using a brightness value
A brightness gear.For example, brightness gear can be expressed as (300-320nit) this brightness range, 300nit can also be expressed as
Or specific brightness value, the present embodiment as 320nit are not construed as limiting this.
In step 203, for each brightness gear in multiple brightness gear, corresponding mapping parameters are generated.
In the present embodiment, different mapping parameters are generated for different brightness gears, that is, different brightness gears are corresponding
Mapping parameters it is different so that each brightness gear can carry out contrast mapping using most suitable mapping parameters, reach
Preferable HDR image maps effect.
Wherein, for each brightness gear in multiple brightness gear, generating corresponding mapping parameters includes following three
Kind implementation:
The first implementation determines the corresponding maximum brightness of brightness gear for each brightness gear；Utilize tool
There is the screen of the maximum brightness to generate the mapping parameters of the brightness gear.
The first implementation directly using the screen with different maximum brightness, is generated each bright using preset algorithm
Spend the mapping parameters of gear.Wherein, preset algorithm can be set or be adjusted in advance, and the present embodiment is not construed as limiting this.
Second of implementation, using specified screen, for each brightness gear, by limiting the specified screen most
Big brightness is the maximum brightness of the brightness gear, generates the mapping parameters of the brightness gear.
Wherein, specified screen refers to the screen for being used to limitation maximum brightness.The second way avoids the need for multiple
The cost of screen hardware, by carrying out maximum brightness limitation to a screen, to generate the mapping of different brightness gears respectively
Parameter.
The third implementation simulates according to the gamma value of screen for each brightness gear and generates the brightness gear
Mapping parameters.The third mode simulates the corresponding maximum brightness of brightness gear, and then basis using the gamma value of screen
The maximum brightness generates the mapping parameters of the brightness gear using preset algorithm.
In the present embodiment, after obtaining each brightness gear to one mapping parameters, by each brightness gear and
The corresponding relationship of its mapping parameters is stored into terminal system.
It should be noted that above-mentioned steps 201 to 203 occur carrying out the calibration that HDR image is shown based on screen equipment
Stage, the calibration phase have finally determined the mapping parameters of the corresponding HDR contrast mapping of different brightness gears.
Wherein, mapping parameters include the brightness mapping-factor for presetting contrast mapping algorithm in the present embodiment.Wherein, rank is preset
Adjust mapping algorithm that can preset, optimize or modify, the present embodiment is not construed as limiting this.
In addition, in the screen production phase also according to above-mentioned screen intensity stepping as a result, screen is carried out according to brightness gear
Classification, and will be in IC (Integrated Circuit, the integrated circuit) storage of the brightness gear information of screen write-in screen.When
So, in another embodiment, do not make any additional change when screen dispatches from the factory, the brightness of screen is still only stored in screen IC
Information, such as displayable brightness range, brightness gear information and corresponding mapping parameters information are only stored in terminal system, by
Terminal system completes gear matching to obtain brightness gear corresponding to screen, and detailed process is referring to subsequent step 204.
It should be noted that the process of the present embodiment further includes the display stage, the display stage include the following steps 204 to
It step 206, is each stage according to involved in an exemplary a kind of screen display method provided in this embodiment as shown in Figure 3
Flow diagram.
In step 204, when performing image display based on target screen, the object brightness shelves of the target screen are obtained
Position.
Wherein, image includes video, using picture, system image etc., and the present embodiment is not construed as limiting the form of image.
Whether corresponding above-mentioned production phase brightness gear is stored in the IC storage of screen, which includes following two reality
Existing mode:
The first implementation, the gear information of corresponding brightness stepping are stored in the IC storage of each screen.At this point,
The object brightness gear for being stored in the target screen can be directly read.
Second of implementation, the luminance information of itself is still only stored in screen, and terminal system is stored with mapping ginseng
Maximum brightness range indicated by several and brightness gear corresponding relationship and each brightness gear.At this point, obtaining object brightness
The process of gear can be with are as follows: reads the maximum brightness information of the target screen；By the maximum brightness information and predetermined luminance gear
It is matched, the brightness gear in predetermined luminance gear with the maximum brightness information matches is determined as the object brightness gear.
Wherein, predetermined luminance gear refers to multiple brightness gears that the above-mentioned steps 202 that value terminal system is stored in advance obtain.
Wherein, according to the different representations of brightness gear, by the maximum brightness information and the progress of predetermined luminance gear
The mode matched includes following two: one is when using brightness range indicate brightness gear when, if target screen is most light
Degree is fallen into a certain brightness range, it is determined that the object brightness gear of the target screen is brightness shelves indicated by the brightness range
Position.Another kind is, when indicating brightness gear using brightness value, then by with the immediate brightness shelves of the maximum brightness of target screen
Position is determined as object brightness gear.
It should be noted that the image in the present embodiment is HDR image, when picture material is video, target screen is used
In displaying HDR video.The display dynamic range of target screen is less than the dynamic range of the HDR image.It is aobvious carrying out HDR image
When showing, terminal can call directly the brightness gear or luminance information stored in screen.
In step 205, according to the object brightness gear, the target mapping parameters of the target screen are determined.
In the present embodiment, terminal storage has the corresponding of the mapping parameters of multiple brightness gears and each brightness gear to close
System.Terminal is based on the corresponding relationship, and mapping parameters corresponding with the object brightness gear are determined as to the target of the target screen
Mapping parameters.
In step 206, the target mapping parameters are based on, contrast mapping is carried out to the image, with aobvious in the target screen
Show the image.
In the present embodiment, contrast mapping is for showing the dynamic range of the HDR image and details in target screen
In, in the original visual effect of target Screen reproduction HDR image.Specifically, contrast mapping is a kind of image processing techniques, should
Technology can compress the image of high dynamic range, to ensure that all scenes can obtain in screen in HDR image
Effectively display.In implementation process, terminal is based on target mapping parameters, using default contrast mapping algorithm, carries out to HDR image
Contrast mapping, to reappear the dynamic range and image detail of the HDR image in the target screen.Wherein, contrast mapping is preset
Algorithm includes but is not limited to that global contrast mapping, local contrast mapping and layering contrast mapping, the present embodiment are not construed as limiting this.
It should be noted that the present embodiment only describes terminal according to corresponding to target screen by taking a target screen as an example
Brightness gear, using most suitable target mapping parameters carry out HDR image contrast map, thus reach more meet human eye view
Feel the display effect of characteristic.In addition, when HDR image needs to be shown in muti-piece target screen, it is equal for each target screen
Using the above method, for the screen of different brightness gears, the mapping of HDR contrast is carried out using different mappings parameter, so that this is more
Block target Showing Effectiveness On Screen is almost the same.
It is further to note that the screen intensity that the present embodiment refers to is one of HDR image mapping process screen
Parameter can also be to another screen parameter in specific mapping process --- and screen coloration maps.In the present embodiment
Using the shade mapping of shade mapping factor control HDR image in contrast mapping algorithm, wherein the shade mapping factor can use
Following two mode indicates: first way, and a corresponding brightness mapping-factor stores a shade mapping in mapping parameters
The shade mapping factor and brightness mapping-factor store in pairs in the factor namely mapping parameters.The second way, mapping parameters only wrap
Brightness mapping-factor, system one shade mapping factor of unified storage are included, namely is joined for the corresponding mapping of different brightness gears
Number, using the identical shade mapping factor.Wherein, the chrominance information of screen can be carried when screen dispatches from the factory.The present embodiment can root
The shade mapping factor is determined according to the statistical distribution to screen chrominance information, can also use the general shade mapping factor, this
Embodiment is not construed as limiting this.
The method that the embodiment of the present disclosure provides obtains the target screen pair when performing image display based on target screen
The object brightness gear answered, and determine target mapping parameters corresponding with the object brightness gear, and then based on target mapping ginseng
Several pairs of images carry out contrast mapping, to show the image in the target screen.By being determined according to the corresponding brightness gear of screen
The mapping parameters of screen map to complete contrast to show image, since the corresponding mapping parameters of different brightness gears are different,
It is not in that average brightness is partially dark or region overexposure so that the screen of different brightness can reach consistent display effect
Problem improves the consistency that screen is shown.
Fig. 4 is a kind of block diagram of screen display device shown according to an exemplary embodiment.Referring to Fig. 4, the device packet
Include the first acquisition module 401, determining module 402 and mapping block 403.
Wherein, the first acquisition module 401 is connect with determining module 402, for performing image display when based on target screen
When, obtain the object brightness gear of the target screen；Determining module 402 is connect with mapping block 403, for bright according to the target
Gear is spent, determines the target mapping parameters of the target screen, the corresponding mapping parameters of different brightness gears are different；Mapping block
403, for being based on the target mapping parameters, contrast mapping is carried out to the image, to show the image in the target screen.
In one possible implementation, the device further include:
Second obtains module, and the brightness statistics for obtaining screen are distributed；
Grading module carries out brightness degree stepping to screen, obtains multiple brightness shelves for being distributed according to the brightness statistics
Position；
Generation module, for generating corresponding mapping parameters for each brightness gear in multiple brightness gear.
In one possible implementation, the grading module, is used for:
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；It is bright to preset based on the maximum brightness range
Degree interval carries out brightness degree stepping to screen；Or,
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range and human eye
Brightness perception characteristics carry out the brightness degree stepping of unequal interval to screen.
In one possible implementation, the generation module, is used for:
For each brightness gear, the corresponding maximum brightness of brightness gear is determined；Using with the maximum brightness
Screen generates the mapping parameters of the brightness gear；Or,
Using specified screen, for each brightness gear, the maximum brightness by limiting the specified screen is the brightness
The maximum brightness of gear generates the mapping parameters of the brightness gear；Or,
For each brightness gear, the mapping parameters for generating the brightness gear are simulated according to the gamma value of screen.
In one possible implementation, the first acquisition module, is used for:
Read the object brightness gear for being stored in the target screen；Or,
Read the maximum brightness information of the target screen；The maximum brightness information and predetermined luminance gear are matched；
Brightness gear in the predetermined luminance gear with the maximum brightness information matches is determined as the object brightness gear.
In one possible implementation, which is HDR image, and the display dynamic range of the target screen is less than should
The dynamic range of HDR image, contrast mapping is for showing the dynamic range of the HDR image and details in the target screen
In, in the original visual effect of the target Screen reproduction HDR image.
The device that the embodiment of the present disclosure provides obtains the target screen pair when performing image display based on target screen
The object brightness gear answered, and determine target mapping parameters corresponding with the object brightness gear, and then based on target mapping ginseng
Several pairs of images carry out contrast mapping, to show the image in the target screen.By being determined according to the corresponding brightness gear of screen
The mapping parameters of screen map to complete contrast to show image, since the corresponding mapping parameters of different brightness gears are different,
It is not in that average brightness is partially dark or region overexposure so that the screen of different brightness can reach consistent display effect
Problem improves the consistency that screen is shown.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Fig. 5 is a kind of block diagram of screen display device shown according to an exemplary embodiment.For example, device 500 can be with
It is mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, Medical Devices, body-building
Equipment, personal digital assistant etc..
Referring to Fig. 5, device 500 may include following one or more components: processing component 502, memory 504, power supply
Component 506, multimedia component 508, audio component 510, input/output (I/O) interface 512, sensor module 514, Yi Jitong
Believe component 516.
The integrated operation of the usual control device 500 of processing component 502, such as with display, telephone call, data communication, phase
Machine operation and record operate associated operation.Processing component 502 may include that one or more processors 520 refer to execute
It enables, to perform all or part of the steps of the methods described above.In addition, processing component 502 may include one or more modules, just
Interaction between processing component 502 and other assemblies.For example, processing component 502 may include multi-media module, it is more to facilitate
Interaction between media component 508 and processing component 502.
Memory 504 is configured as storing various types of data to support the operation in device 500.These data are shown
Example includes the instruction of any application or method for operating on device 500, contact data, and telephone book data disappears
Breath, picture, video etc..Memory 504 can be by any kind of volatibility or non-volatile memory device or their group
It closes and realizes, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM) is erasable to compile
Journey read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 506 provides electric power for the various assemblies of device 500.Power supply module 506 may include power management system
System, one or more power supplys and other with for device 500 generate, manage, and distribute the associated component of electric power.
Multimedia component 508 includes the screen of one output interface of offer between described device 500 and user.One
In a little embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch screen, to receive input signal from the user.Touch panel includes one or more touch sensings
Device is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding action
Boundary, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more matchmakers
Body component 508 includes a front camera and/or rear camera.When device 500 is in operation mode, such as screening-mode or
When video mode, front camera and/or rear camera can receive external multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 510 is configured as output and/or input audio signal.For example, audio component 510 includes a Mike
Wind (MIC), when device 500 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone is matched
It is set to reception external audio signal.The received audio signal can be further stored in memory 504 or via communication set
Part 516 is sent.In some embodiments, audio component 510 further includes a loudspeaker, is used for output audio signal.
I/O interface 512 provides interface between processing component 502 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and lock
Determine button.
Sensor module 514 includes one or more sensors, and the state for providing various aspects for device 500 is commented
Estimate.For example, sensor module 514 can detecte the state that opens/closes of device 500, and the relative positioning of component, for example, it is described
Component is the display and keypad of device 500, and sensor module 514 can be with 500 1 components of detection device 500 or device
Position change, the existence or non-existence that user contacts with device 500,500 orientation of device or acceleration/deceleration and device 500
Temperature change.Sensor module 514 may include proximity sensor, be configured to detect without any physical contact
Presence of nearby objects.Sensor module 514 can also include optical sensor, such as CMOS or ccd image sensor, at
As being used in application.In some embodiments, which can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 516 is configured to facilitate the communication of wired or wireless way between device 500 and other equipment.Device
500 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or their combination.In an exemplary implementation
In example, communication component 516 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 516 further includes near-field communication (NFC) module, to promote short range communication.Example
Such as, NFC module can be based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 500 can be believed by one or more application specific integrated circuit (ASIC), number
Number processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing above-mentioned screen display method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 504 of instruction, above-metioned instruction can be executed by the processor 520 of device 500 to complete the above method.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
In the exemplary embodiment, a kind of computer readable storage medium is additionally provided, finger is stored in the storage medium
It enables, when the instruction in the storage medium is executed by the processor of terminal, enables the terminal to execute above-mentioned screen display side
Method.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (8)
1. a kind of screen display method, which is characterized in that the described method includes:
When performing image display based on target screen, the object brightness gear of the target screen is obtained；
According to the object brightness gear, the target mapping parameters of the target screen are determined, different brightness gears are corresponding to be reflected
Penetrate parameter difference；
Based on the target mapping parameters, contrast mapping is carried out to described image, to show described image in the target screen.
2. the method according to claim 1, wherein the method also includes:
Obtain the brightness statistics distribution of screen；
It is distributed according to the brightness statistics, brightness degree stepping is carried out to screen, obtains multiple brightness gears；
For each brightness gear in the multiple brightness gear, corresponding mapping parameters are generated.
3. according to the method described in claim 2, it is characterized in that, described be distributed according to the brightness statistics, to screen progress
Brightness degree stepping, comprising:
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；It is bright to preset based on the maximum brightness range
Degree interval carries out brightness degree stepping to screen；Or,
It is distributed according to the brightness statistics, determines the maximum brightness range of screen；Based on the maximum brightness range and human eye
Brightness perception characteristics carry out the brightness degree stepping of unequal interval to screen.
4. according to the method described in claim 2, it is characterized in that, described for each brightness in the multiple brightness gear
Gear generates corresponding mapping parameters, comprising:
For each brightness gear, the corresponding maximum brightness of the brightness gear is determined；Using with the maximum brightness
Screen generates the mapping parameters of the brightness gear；Or,
Using specified screen, for each brightness gear, the maximum brightness by limiting the specified screen is the brightness
The maximum brightness of gear generates the mapping parameters of the brightness gear；Or,
For each brightness gear, the mapping parameters of the brightness gear are generated according to the simulation of the gamma value of screen.
5. the method according to claim 1, wherein the object brightness gear for obtaining the target screen,
Include:
Read the object brightness gear for being stored in the target screen；Or,
Read the maximum brightness information of the target screen；The maximum brightness information and predetermined luminance gear are matched；
It will be determined as the object brightness gear with the brightness gear of the maximum brightness information matches in the predetermined luminance gear.
6. method according to any one of claims 1 to 5, which is characterized in that described image is high dynamic range HDR figure
Picture, the display dynamic range of the target screen are less than the dynamic range of the HDR image, and the contrast mapping is used for will be described
The dynamic range and details of HDR image are shown in the target screen, with the original of the HDR image described in the target Screen reproduction
Some visual effects.
7. a kind of screen display device characterized by comprising
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to executing the executable instruction to complete screen described in any one of claims 1-6
Curtain display methods.
8. a kind of computer readable storage medium, which is characterized in that be stored with instruction, institute on the computer readable storage medium
Instruction is stated to be executed by processor to complete screen display method described in any one of claims 1-6.
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