CN110087068A - Measurement method, device, equipment and the computer readable storage medium of brightness of image - Google Patents
Measurement method, device, equipment and the computer readable storage medium of brightness of image Download PDFInfo
- Publication number
- CN110087068A CN110087068A CN201910489764.4A CN201910489764A CN110087068A CN 110087068 A CN110087068 A CN 110087068A CN 201910489764 A CN201910489764 A CN 201910489764A CN 110087068 A CN110087068 A CN 110087068A
- Authority
- CN
- China
- Prior art keywords
- brightness
- image
- monochromatic
- several
- map information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3191—Testing thereof
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Image Processing (AREA)
Abstract
The present invention discloses measurement method, device, equipment and the computer readable storage medium of a kind of brightness of image, described image uses DLP projection device projection imaging, and the measurement method of described image brightness includes: to generate the correspondence mappings information of each display position and brightness in several solid color images；Projected image is obtained, decomposing the projected image is several monochromatic projection figures, and the color category of several solid color images includes the color category of several monochromatic projection figures；According to the correspondence mappings information, the monochromatic brightness value of several monochromatic projection figures is obtained；Several monochromatic brightness values are superimposed, the brightness of image of the projected image is obtained；According to preset normal brightness and described image brightness contrast, judge whether described image brightness is qualified.Technical solution of the present invention can effectively measure the brightness for obtaining imaging.
Description
Technical field
The present invention relates to brightness of image field of measuring technique, in particular to a kind of measurement method of brightness of image, is set device
Standby and computer readable storage medium.
Background technique
DLP (Digital Light Processing, digital light processing) shadow casting technique is a kind of video signal to be passed through
Digital processing, the technology that then image projecting is come out again, in the optical path of DLP image projection imaging, the focal length of general optical path
It is shorter, in limited distance range, in order to obtain bigger display picture, the angle of scattering is increased, not same district is easily led to
There is difference in domain optical path illumination intensity, that is, the brightness uniformity being ultimately imaged is bad, and has at present for the brightness shortage of imaging
The measurement means of effect.
Summary of the invention
The main object of the present invention is the measurement method for proposing a kind of brightness of image, device, equipment and computer-readable deposits
Storage media, it is intended to which measurement obtains the illumination brightness of projection imaging.
To achieve the above object, the measurement method of brightness of image proposed by the present invention, described image is using digital light processing
The measurement method of DLP projection device projection imaging, described image brightness includes:
Generate each display position in several solid color images and the correspondence mappings information of brightness；
Projected image is obtained, decomposing the projected image is several monochromatic projection figures, several solid color images
Color category includes the color category of several monochromatic projection figures；
According to the correspondence mappings information, the monochromatic brightness value of several monochromatic projection figures is obtained；
Several monochromatic brightness values are superimposed, the brightness of image of the projected image is obtained；
According to preset normal brightness and described image brightness contrast, judge whether described image brightness is qualified.
Optionally, the correspondence mappings information of each display position generated in several solid color images and brightness
Step includes:
Shooting obtain red image, according in the red image each display position and brightness one-to-one relationship,
Generate the first map information；
Shooting obtain green image, according in the green image each display position and brightness one-to-one relationship,
Generate the second map information；
Shooting obtain blue image, according in the blue image each display position and brightness one-to-one relationship,
Generate third map information.
Optionally, the acquisition projected image, decomposing the step of projected image is several monochromatic projection figures includes:
Projected image is obtained, drop shadow red's figure, drop shadow green's figure and blue that the projected image is solid color are decomposed
Perspective view.
Optionally, described according to the correspondence mappings information, obtain the monochromatic brightness value of several monochromatic projection figures
Step includes:
According to first map information, obtains drop shadow red and scheme corresponding first monochromatic brightness value；
According to second map information, obtains drop shadow green and scheme corresponding second monochromatic brightness value；
According to the third map information, obtains drop shadow blue and scheme corresponding third monochromatic brightness value.
Optionally, several the step of being superimposed the monochromatic brightness value, obtaining the brightness of image of projected image packets
It includes:
It is superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third monochromatic brightness value, obtains institute
State the brightness of image of projected image.
In addition, to achieve the goals above, the present invention also provides a kind of measuring device of brightness of image, described image is used
Digital light processing DLP projection device projection imaging, the measuring device of described image brightness include:
Generation module, the correspondence mappings for generating each display position and brightness in several solid color images are believed
Breath；
Shooting module obtains projected image for shooting；
Decomposing module is several monochromatic projection figures for decomposing the projected image, several solid color images
Color category includes the color category of several monochromatic projection figures；
Module is obtained, for obtaining the monochromatic brightness value of several monochromatic projection figures according to the correspondence mappings information；
Laminating module obtains the brightness of image of the projected image for being superimposed several monochromatic brightness values；
Judgment module, for judging that described image brightness is according to preset normal brightness and described image brightness contrast
No qualification.
Optionally, the shooting module, which is also used to shoot, obtains red image, shooting obtains green image and shoots acquisition
Blue image；
The generation module be also used to according in the red image each display position and brightness one-to-one relationship
Generate the first map information, according in the green image each display position and brightness one-to-one relationship generate and second reflect
Penetrate information, according in the blue image each display position and brightness one-to-one relationship generate third map information；
The decomposing module be also used to decompose the projected image be solid color drop shadow red figure, drop shadow green figure and
Drop shadow blue's figure；
It is bright that the acquisition module is also used to obtain corresponding first monochrome of drop shadow red's figure according to first map information
Angle value obtains drop shadow green according to second map information and schemes corresponding second monochromatic brightness value, maps according to the third
Information obtains drop shadow blue and schemes corresponding third monochromatic brightness value；
The laminating module is also used to be superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third
Monochromatic brightness value obtains the brightness of image of the projected image.
Optionally, the shooting module shoots the red image, the green image and the acquisition blue image
It is identical with the time for exposure of the projected image.
In addition, to achieve the goals above, the present invention also provides a kind of measuring device of brightness of image, described image brightness
Measuring device include: memory, processor and be stored in the image that can be run on the memory and on the processor
The process of measurement of brightness；The process of measurement of described image brightness realizes that image as described above is bright when being executed by the processor
The step of measurement method of degree.
In addition, to achieve the goals above, the present invention also provides a kind of computer readable storage mediums, which is characterized in that
The process of measurement of brightness of image is stored on the computer readable storage medium, the process of measurement of described image brightness is processed
The step of device realizes the measurement method of brightness of image as described above when executing.
Technical solution of the present invention obtains the perspective view of several solid colors, according to by decomposing projected image
The correspondence mappings information of the brightness of each display position in the solid color image of generation, can find the throwing of solid color
The brightness of display position in shadow figure so can be derived that the brightness of the perspective view display position of each solid color, by several
The brightness value of the perspective view of solid color is superimposed, and constitutes the overall brightness of perspective view, and then again by contrast standard brightness,
Judge whether the overall brightness of perspective view meets the requirements.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the first embodiment flow diagram of the measurement method of brightness of image of the present invention；
Fig. 2 is the second embodiment flow diagram of the measurement method of brightness of image of the present invention；
Fig. 3 is the 3rd embodiment flow diagram of the measurement method of brightness of image of the present invention；
Fig. 4 is the fourth embodiment flow diagram of the measurement method of brightness of image of the present invention；
Fig. 5 is the 5th embodiment flow diagram of the measurement method of brightness of image of the present invention；
Fig. 6 is the attachment structure schematic diagram of the measuring device of brightness of image of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 110 | Generation module | 140 | Obtain module |
| 120 | Shooting module | 150 | Laminating module |
| 130 | Decomposing module | 160 | Judgment module |
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.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
As shown in fig.1, first embodiment proposed by the present invention, the measurement method of brightness of image proposed by the present invention, institute
Image is stated using digital light processing DLP projection device projection imaging, DLP (the Digital Light Processing) projection
Technology is a kind of video signal to be projected microchip DMD (Digital Micromirror Device, digital micro-mirror chip)
On, microchip is rotated with 5000 speed per second, and by shaping lens, the technology that image projecting is come out, described image is bright
The measurement method of degree includes:
Step S10 generates each display position in several solid color images and the correspondence mappings information of brightness, so
It is found that the image of each color, there is a correspondence mappings information, correspondence mappings information can be stored up with the formation of electrical form
It deposits, when to specific luminance, adjustable acquirement is arrived, in addition, the value of brightness is not equidistant branch, in general in solid color
The central area brightness of image is relatively high, and fringe region brightness is relatively low, that is to say, that display position and brightness value are not
It is a linear relationship, when generating correspondence mappings information, as needed, required precision is higher, and the display position of selection is got over
Intensively.
Step S20 obtains projected image, and decomposing the projected image is several monochromatic projection figures, several single face
The color category of chromatic graph picture includes the color category of several monochromatic projection figures, and projected image is generally multiple color combination structure
At, and the brightness value of multiple color combination is difficult to effectively measure, therefore projected image is decomposed into multiple monochromatic projection figures, decomposes
Obtained multiple monochromatic projection figures can match to obtain in solid color image, and the monochrome of readily available monochromatic projection figure is bright
Angle value.
Step S30 obtains the monochromatic brightness value of several monochromatic projection figures, specifically according to the correspondence mappings information
For, the correspondence mappings information of preservation is transferred, according to the correspondence mappings information, monochromatic projection figure is found and corresponds to display position
Monochromatic brightness value, obtained monochromatic brightness value will be searched and merge composition monochromatic brightness value.
Step S40 is superimposed several monochromatic brightness values, the brightness of image of the projected image is obtained, due to perspective view
As being broken down into monochromatic projection figure, the brightness of same projected image is also decomposed, after obtaining monochromatic brightness value, by monochromatic brightness value
Superposition, constitutes the brightness of image of projected image, and brightness of image is generally divided into the luminance information between 0~255,0 represent it is bright
Spend most dark, and 255 to represent brightness most bright.
Step S50 judges whether described image brightness closes according to preset normal brightness and described image brightness contrast
Lattice, preset normal brightness can be set according to professional standard or the demand of user.
Technical solution of the present invention obtains the perspective view of several solid colors, according to by decomposing projected image
The correspondence mappings information of the brightness of each display position in the solid color image of generation, can find the throwing of solid color
The brightness of display position in shadow figure so can be derived that the brightness of the perspective view display position of each solid color, by several
The brightness value of the perspective view of solid color is superimposed, and constitutes the overall brightness of perspective view, and then again by contrast standard brightness,
Judge whether the overall brightness of perspective view meets the requirements.
As shown in fig.2, second embodiment proposed by the present invention, described each of several solid color images that generate are shown
Show that the step S10 of the correspondence mappings information of position and brightness includes:
Step S110, shooting obtain red image, according in the red image each display position and brightness one by one
Corresponding relationship generates the first map information, specifically, shoots red picture by camera, obtains red image, red image
In the corresponding brightness value in each display position, will one electrical form of this one-to-one relationship formation, i.e., first reflects
Information is penetrated, the electrical form is stored, when to specific luminance, convenient for transferring application.
Step S120, shooting obtain green image, according in the green image each display position and brightness one by one
Corresponding relationship generates the second map information, specifically, shoots green picture by camera, obtains green image, green image
In the corresponding brightness value in each display position, will one electrical form of this one-to-one relationship formation, i.e., second reflects
Information is penetrated, the electrical form is stored, when to specific luminance, convenient for transferring application.
Step S130, shooting obtain blue image, according in the blue image each display position and brightness one by one
Corresponding relationship generates third map information, specifically, shoots blue picture by camera, obtains blue image, blue image
In the corresponding brightness value in each display position, will one electrical form of this one-to-one relationship formation, i.e. third reflects
Information is penetrated, the electrical form is stored, when to specific luminance, convenient for transferring application.
In general, most colors in nature can be mixed according to a certain percentage by RGB color
It obtains, that is to say, that any one color can be broken down into red blue three kinds of solid colors.
Step S110, step S120 can be synchronous progress with step S130, can also separate and carry out, three when separately carrying out
Sequence between a step can be set as needed.
As shown in fig.3,3rd embodiment proposed by the present invention, the acquisition projected image, decompose the projected image
Step S20 for several monochromatic projection figures includes:
Step S21 obtains projected image, decomposes drop shadow red's figure, drop shadow green that the projected image is solid color
Figure and drop shadow blue's figure, due to most colors in nature, can be mixed according to a certain percentage by RGB color
Obtain, that is to say, that any one color can be broken down into red blue three kinds of solid colors, while red green by being decomposed into
Blue three-color is convenient for and the first map information, the second map information and the matching comparison of third map information.
As shown in fig.4, fourth embodiment proposed by the present invention, described according to the correspondence mappings information, obtain several
The step S30 of the monochromatic brightness value of the monochromatic projection figure includes:
Step S310 obtains drop shadow red and schemes corresponding first monochromatic brightness value, specifically according to first map information
For, the first map information is transferred, according to the brightness value recorded in the first map information, obtains drop shadow red's figure corresponding first
Monochromatic brightness value.
Step S320 obtains drop shadow green and schemes corresponding second monochromatic brightness value, specifically according to second map information
For, the second map information is transferred, according to the brightness value recorded in the second map information, obtains drop shadow green's figure corresponding second
Monochromatic brightness value.
Step S330 obtains drop shadow blue and schemes corresponding third monochromatic brightness value, specifically according to the third map information
For, third map information is transferred, according to the brightness value recorded in third map information, drop shadow blue is obtained and schemes corresponding third
Monochromatic brightness value.
That is, showing that three kinds of colors of RGB are corresponding respectively by step S310, step S320 and step S330
Brightness value forms whole brightness of image convenient for subsequent combination.
As shown in fig.5, the 5th embodiment proposed by the present invention, several monochromatic brightness values of superposition, obtain institute
The step S40 for stating the brightness of image of projected image includes:
Step S41 is superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third monochromatic brightness
Value, obtains the brightness of image of the projected image, since projected image is broken down into RGB monochromatic projection figure, same RGB
The brightness of projected image is also decomposed, after obtaining the corresponding monochromatic brightness value of RGB projected image, by monochromatic brightness value
Superposition, constitutes the brightness of image of projected image, and brightness of image is generally divided into the luminance information between 0~255,0 represent it is bright
Spend most dark, and 255 to represent brightness most bright.
As shown in fig.6, described image is using digital light processing the present invention also provides a kind of measuring device of brightness of image
DLP projection device projection imaging, the measuring device of described image brightness include: generation module 110, shooting module 120, decompose mould
Block 130 obtains module 140, laminating module 150 and judgment module 160.
Generation module 110 is used to generate the correspondence mappings letter of each display position and brightness in several solid color images
Breath, so it is found that the image of each color, has a correspondence mappings information, correspondence mappings information can be with the shape of electrical form
At being stored, when to specific luminance, adjustable acquirement is arrived, in addition, the value of brightness is not equidistant branch, is in general existed
The central area brightness of solid color image is relatively high, and fringe region brightness is relatively low, that is to say, that display position and
Brightness value is not a linear relationship, and when generating correspondence mappings information, as needed, required precision is higher, and selection is shown
Show that position is more intensive.
Shooting module 120 obtains projected image for shooting.
Decomposing module 130 is several monochromatic projection figures, several solid color images for decomposing the projected image
Color category include several monochromatic projection figures color category, projected image be generally multiple color combination constitute, and
The brightness value of multiple color combination is difficult to effectively measure, therefore projected image is decomposed into multiple monochromatic projection figures, and decomposition obtains
Multiple monochromatic projection figures can match to obtain in solid color image, the monochromatic brightness of readily available monochromatic projection figure
Value.
Module 140 is obtained to be used to obtain the monochromatic brightness of several monochromatic projection figures according to the correspondence mappings information
Value, transfers the correspondence mappings information of preservation, according to the correspondence mappings information, finds monochromatic projection figure and correspond to display position
Monochromatic brightness value will search obtained monochromatic brightness value and merge composition monochromatic brightness value.
Laminating module 150 is used to be superimposed several monochromatic brightness values, obtains the brightness of image of the projected image, due to
Projected image is broken down into monochromatic projection figure, and the brightness of same projected image is also decomposed, will be monochromatic after obtaining monochromatic brightness value
Brightness value superposition, constitutes the brightness of image of projected image, and brightness of image is generally divided into the luminance information between 0~255, and 0
It is most dark to represent brightness, and 255 to represent brightness most bright.
Judgment module 160 is used to judge described image brightness according to preset normal brightness and described image brightness contrast
Whether qualified, preset normal brightness can be set according to professional standard or the demand of user.
Technical solution of the present invention obtains the perspective view of several solid colors, according to by decomposing projected image
The correspondence mappings information of the brightness of each display position in the solid color image of generation, can find the throwing of solid color
The brightness of display position in shadow figure so can be derived that the brightness of the perspective view display position of each solid color, by several
The brightness value of the perspective view of solid color is superimposed, and constitutes the overall brightness of perspective view, and then again by contrast standard brightness,
Judge whether the overall brightness of perspective view meets the requirements.
Further, the shooting module 120, which is also used to shoot, obtains red image, shooting acquisition green image and shooting
Blue image is obtained, in general, most colors in nature can be by RGB color according to a certain percentage
Mixed obtains, that is to say, that any one color can be broken down into red blue three kinds of solid colors.
The generation module 110 is also used to according to each display position and brightness one-to-one correspondence pass in the red image
System generate the first map information, according in the green image each display position and brightness one-to-one relationship generate second
Map information, according in the blue image each display position and brightness one-to-one relationship generate third map information,
First map information, the second map information and third map information are that electrical form formation is stored, convenient for bright in comparison
When spending, application is transferred.
The decomposing module 130 is also used to decompose drop shadow red's figure that the projected image is solid color, drop shadow green
Figure and drop shadow blue's figure, due to most colors in nature, can be mixed according to a certain percentage by RGB color
Obtain, that is to say, that any one color can be broken down into red blue three kinds of solid colors, while red green by being decomposed into
Blue three-color is convenient for and the first map information, the second map information and the matching comparison of third map information.
The acquisition module 140 is also used to obtain corresponding first monochrome of drop shadow red's figure according to first map information
Brightness value obtains drop shadow green according to second map information and schemes corresponding second monochromatic brightness value, reflects according to the third
Information is penetrated, drop shadow blue is obtained and schemes corresponding third monochromatic brightness value；Thus show that three kinds of colors of RGB are corresponding bright respectively
Angle value forms whole brightness of image convenient for subsequent combination.
The laminating module 150 is also used to be superimposed the first monochromatic brightness value, the second monochromatic brightness value and described
Third monochromatic brightness value, obtains the brightness of image of the projected image, since projected image is broken down into RGB monochromatic projection
Figure, the brightness of same RGB projected image is also decomposed, after obtaining the corresponding monochromatic brightness value of RGB projected image,
Monochromatic brightness value is superimposed, the brightness of image of projected image is constituted, brightness of image is generally divided into the brightness between 0~255
Information, 0 to represent brightness most dark, and 255 to represent brightness most bright.
Further, the shooting module 110 shoots the red image, the green image and acquisition blue
Image is identical with the time for exposure of the projected image, time for exposure identical guarantee shooting module 110 shooting projected image and
The lighting condition for shooting solid color image is identical, and it is identical furthermore to also set up external environmental light condition, and the variation of environment light is avoided to lead
Cause the brightness conditions of shooting different, i.e., guarantee shooting module 110 shoots the red image, the green image and described obtains
It is identical with the brightness conditions of the projected image to obtain blue image.
The present invention also provides a kind of measuring device of brightness of image, the measuring device of described image brightness include: memory,
Processor and the process of measurement for being stored in the brightness of image that can be run on the memory and on the processor；Described image
The measuring device of brightness calls the process of measurement of the brightness of image stored in memory by processor and executes following operation:
Generate each display position in several solid color images and the correspondence mappings information of brightness；
Projected image is obtained, decomposing the projected image is several monochromatic projection figures, several solid color images
Color category includes the color category of several monochromatic projection figures；
According to the correspondence mappings information, the monochromatic brightness value of several monochromatic projection figures is obtained；
Several monochromatic brightness values are superimposed, the brightness of image of the projected image is obtained；
According to preset normal brightness and described image brightness contrast, judge whether described image brightness is qualified.
Further, processor calls the process of measurement of the brightness of image stored in memory, also executes following operation:
Shooting obtain red image, according in the red image each display position and brightness one-to-one relationship,
Generate the first map information；
Shooting obtain green image, according in the green image each display position and brightness one-to-one relationship,
Generate the second map information；
Shooting obtain blue image, according in the blue image each display position and brightness one-to-one relationship,
Generate third map information.
Further, processor calls the process of measurement of the brightness of image stored in memory, also executes following operation:
Projected image is obtained, drop shadow red's figure, drop shadow green's figure and blue that the projected image is solid color are decomposed
Perspective view.
Further, processor calls the process of measurement of the brightness of image stored in memory, also executes following operation:
According to first map information, obtains drop shadow red and scheme corresponding first monochromatic brightness value；
According to second map information, obtains drop shadow green and scheme corresponding second monochromatic brightness value；
According to the third map information, obtains drop shadow blue and scheme corresponding third monochromatic brightness value.
Further, processor calls the process of measurement of the brightness of image stored in memory, also executes following operation:
It is superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third monochromatic brightness value, obtains institute
State the brightness of image of projected image.
Technical solution of the present invention reads the process of measurement of brightness of image by processor, projected image is decomposed, if obtaining
The perspective view of dry solid color, the correspondence of the brightness according to each display position in the solid color image generated are reflected
Information is penetrated, the brightness of display position in the perspective view of solid color can be found, so can be derived that each solid color
The brightness value of the perspective view of several solid colors is superimposed, constitutes the entirety of perspective view by the brightness of perspective view display position
Brightness, and then again by contrast standard brightness, judge whether the overall brightness of perspective view meets the requirements.
The present invention also provides a kind of computer readable storage medium, image is stored on the computer readable storage medium
The process of measurement of the process of measurement of brightness, described image brightness can be executed by one or more than one processor to be used for:
Generate each display position in several solid color images and the correspondence mappings information of brightness；
Projected image is obtained, decomposing the projected image is several monochromatic projection figures, several solid color images
Color category includes the color category of several monochromatic projection figures；
According to the correspondence mappings information, the monochromatic brightness value of several monochromatic projection figures is obtained；
Several monochromatic brightness values are superimposed, the brightness of image of the projected image is obtained；
According to preset normal brightness and described image brightness contrast, judge whether described image brightness is qualified.
Further, following operation is also realized when the process of measurement of described image brightness is executed by processor:
Shooting obtain red image, according in the red image each display position and brightness one-to-one relationship,
Generate the first map information；
Shooting obtain green image, according in the green image each display position and brightness one-to-one relationship,
Generate the second map information；
Shooting obtain blue image, according in the blue image each display position and brightness one-to-one relationship,
Generate third map information.
Further, following operation is also realized when the process of measurement of described image brightness is executed by processor:
Projected image is obtained, drop shadow red's figure, drop shadow green's figure and blue that the projected image is solid color are decomposed
Perspective view.
Further, following operation is also realized when the process of measurement of described image brightness is executed by processor:
According to first map information, obtains drop shadow red and scheme corresponding first monochromatic brightness value；
According to second map information, obtains drop shadow green and scheme corresponding second monochromatic brightness value；
According to the third map information, obtains drop shadow blue and scheme corresponding third monochromatic brightness value.
Further, following operation is also realized when the process of measurement of described image brightness is executed by processor:
It is superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third monochromatic brightness value, obtains institute
State the brightness of image of projected image.
Technical solution of the present invention reads the process of measurement of brightness of image by processor, projected image is decomposed, if obtaining
The perspective view of dry solid color, the correspondence of the brightness according to each display position in the solid color image generated are reflected
Information is penetrated, the brightness of display position in the perspective view of solid color can be found, so can be derived that each solid color
The brightness value of the perspective view of several solid colors is superimposed, constitutes the entirety of perspective view by the brightness of perspective view display position
Brightness, and then again by contrast standard brightness, judge whether the overall brightness of perspective view meets the requirements.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server or network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of measurement method of brightness of image, which is characterized in that described image is using digital light processing DLP projection device projection
Imaging, the measurement method of described image brightness include:
Generate each display position in several solid color images and the correspondence mappings information of brightness；
Projected image is obtained, decomposing the projected image is several monochromatic projection figures, the color of several solid color images
Type includes the color category of several monochromatic projection figures；
According to the correspondence mappings information, the monochromatic brightness value of several monochromatic projection figures is obtained；
Several monochromatic brightness values are superimposed, the brightness of image of the projected image is obtained；
According to preset normal brightness and described image brightness contrast, judge whether described image brightness is qualified.
2. the measurement method of brightness of image as described in claim 1, which is characterized in that described to generate several solid color images
In each display position and brightness correspondence mappings information the step of include:
Shooting obtain red image, according in the red image each display position and brightness one-to-one relationship, generate
First map information；
Shooting obtain green image, according in the green image each display position and brightness one-to-one relationship, generate
Second map information；
Shooting obtain blue image, according in the blue image each display position and brightness one-to-one relationship, generate
Third map information.
3. the measurement method of brightness of image as claimed in claim 2, which is characterized in that the acquisition projected image decomposes institute
Stating the step of projected image is several monochromatic projection figures includes:
Projected image is obtained, drop shadow red's figure, drop shadow green's figure and drop shadow blue that the projected image is solid color are decomposed
Figure.
4. the measurement method of brightness of image as claimed in claim 3, which is characterized in that described to believe according to the correspondence mappings
Breath, the step of obtaining the monochromatic brightness value of several monochromatic projection figures include:
According to first map information, obtains drop shadow red and scheme corresponding first monochromatic brightness value；
According to second map information, obtains drop shadow green and scheme corresponding second monochromatic brightness value；
According to the third map information, obtains drop shadow blue and scheme corresponding third monochromatic brightness value.
5. the measurement method of brightness of image as claimed in claim 4, which is characterized in that several monochromatic brightness of superposition
Value, the step of obtaining the brightness of image of the projected image include:
It is superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third monochromatic brightness value, obtains the throwing
The brightness of image of shadow image.
6. a kind of measuring device of brightness of image, which is characterized in that described image is using digital light processing DLP projection device projection
Imaging, the measuring device of described image brightness include:
Generation module, for generating each display position in several solid color images and the correspondence mappings information of brightness；
Shooting module obtains projected image for shooting；
Decomposing module is several monochromatic projection figures, the color of several solid color images for decomposing the projected image
Type includes the color category of several monochromatic projection figures；
Module is obtained, for obtaining the monochromatic brightness value of several monochromatic projection figures according to the correspondence mappings information；
Laminating module obtains the brightness of image of the projected image for being superimposed several monochromatic brightness values；
Judgment module, for judging whether described image brightness closes according to preset normal brightness and described image brightness contrast
Lattice.
7. the measuring device of brightness of image as claimed in claim 6, which is characterized in that the shooting module is also used to shoot and obtain
Obtain red image, shooting obtains green image and shooting obtains blue image；
The generation module be also used to according in the red image each display position and brightness one-to-one relationship generate
First map information, according in the green image each display position and brightness one-to-one relationship generate second mapping letter
Breath, according in the blue image each display position and brightness one-to-one relationship generate third map information；
The decomposing module is also used to decompose drop shadow red's figure, drop shadow green's figure and the blue that the projected image is solid color
Perspective view；
The acquisition module, which is also used to obtain drop shadow red according to first map information, schemes corresponding first monochromatic brightness value,
Drop shadow green, which is obtained, according to second map information schemes corresponding second monochromatic brightness value, according to the third map information,
It obtains drop shadow blue and schemes corresponding third monochromatic brightness value；
It is monochromatic that the laminating module is also used to be superimposed the first monochromatic brightness value, the second monochromatic brightness value and the third
Brightness value obtains the brightness of image of the projected image.
8. the measuring device of brightness of image as claimed in claim 7, which is characterized in that the shooting module shoots the red
Image, the green image and the acquisition blue image are identical with the time for exposure of the projected image.
9. a kind of measuring device of brightness of image, which is characterized in that the measuring device of described image brightness includes: memory, place
Reason device and the process of measurement for being stored in the brightness of image that can be run on the memory and on the processor；Described image is bright
The process of measurement of degree realizes the measurement side of brightness of image according to any one of claims 1 to 5 when being executed by the processor
The step of method.
10. a kind of computer readable storage medium, which is characterized in that it is bright to be stored with image on the computer readable storage medium
It realizes when the process of measurement of the process of measurement of degree, described image brightness is executed by processor such as any one of claim 1-5 institute
The step of measurement method for the brightness of image stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489764.4A CN110087068B (en) | 2019-06-05 | 2019-06-05 | Image brightness measuring method, device, equipment and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489764.4A CN110087068B (en) | 2019-06-05 | 2019-06-05 | Image brightness measuring method, device, equipment and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110087068A true CN110087068A (en) | 2019-08-02 |
| CN110087068B CN110087068B (en) | 2021-06-08 |
Family
ID=67423781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910489764.4A Active CN110087068B (en) | 2019-06-05 | 2019-06-05 | Image brightness measuring method, device, equipment and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110087068B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418124A (en) * | 2019-08-05 | 2019-11-05 | 歌尔股份有限公司 | Projected image detection method, device, equipment and computer readable storage medium |
| CN113810673A (en) * | 2021-09-24 | 2021-12-17 | 当趣网络科技(杭州)有限公司 | Projector uniformity testing method and device and computer readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528990A (en) * | 2016-01-19 | 2016-04-27 | 西安诺瓦电子科技有限公司 | LED display screen uniformity correction method |
| CN109119031A (en) * | 2018-09-07 | 2019-01-01 | 广州视源电子科技股份有限公司 | Method and device for controlling output brightness of display screen and electronic equipment |
| CN109360229A (en) * | 2018-10-31 | 2019-02-19 | 歌尔股份有限公司 | Laser projection image processing method, device and equipment |
-
2019
- 2019-06-05 CN CN201910489764.4A patent/CN110087068B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528990A (en) * | 2016-01-19 | 2016-04-27 | 西安诺瓦电子科技有限公司 | LED display screen uniformity correction method |
| CN109119031A (en) * | 2018-09-07 | 2019-01-01 | 广州视源电子科技股份有限公司 | Method and device for controlling output brightness of display screen and electronic equipment |
| CN109360229A (en) * | 2018-10-31 | 2019-02-19 | 歌尔股份有限公司 | Laser projection image processing method, device and equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418124A (en) * | 2019-08-05 | 2019-11-05 | 歌尔股份有限公司 | Projected image detection method, device, equipment and computer readable storage medium |
| CN110418124B (en) * | 2019-08-05 | 2021-11-30 | 歌尔光学科技有限公司 | Projection image detection method, projection image detection device, projection image detection equipment and computer-readable storage medium |
| CN113810673A (en) * | 2021-09-24 | 2021-12-17 | 当趣网络科技(杭州)有限公司 | Projector uniformity testing method and device and computer readable storage medium |
| CN113810673B (en) * | 2021-09-24 | 2023-05-30 | 当趣网络科技(杭州)有限公司 | Projector uniformity testing method and device and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110087068B (en) | 2021-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109584352B (en) | Three-dimensional scanning image acquisition and processing method and device and three-dimensional scanning equipment | |
| CN106534820B (en) | A kind of multihead display color calibrating method and system | |
| US9769466B2 (en) | Digital cinema projection method, optimization device and projection system | |
| CN109155843A (en) | Image projection system and image projecting method | |
| US8605106B2 (en) | Projector and color improvement method of the projector | |
| CN106791737A (en) | The color calibration method and device of projected picture | |
| CN105578080B (en) | Imaging method, imaging device and electronic device | |
| CN112185300A (en) | Display screen correction method and device, storage medium and processor | |
| CN110087068A (en) | Measurement method, device, equipment and the computer readable storage medium of brightness of image | |
| CN113053324A (en) | Backlight control method, device, equipment, system and storage medium | |
| CN111896233A (en) | Contrast test method, contrast test apparatus, and storage medium | |
| CN109673159A (en) | 3D sensing technology based on more structured lightings | |
| CN109565577A (en) | Colour correcting apparatus, color calibration system, colour correction hologram, color correcting method and program | |
| CN109427041A (en) | A kind of image white balance method and system, storage medium and terminal device | |
| CN106331663B (en) | A kind of interaction material acquisition system and method for portable equipment | |
| CN106231278B (en) | Method for processing video frequency and television system | |
| US11245881B2 (en) | Method and apparatus for correcting color convergence error | |
| US11683596B2 (en) | Image capture apparatus, electronic apparatus, and chroma suppression program | |
| Yamaguchi et al. | Natural vision: Visual telecommunication based on multispectral technology | |
| WO2017221663A1 (en) | Video display system | |
| CN114460862A (en) | Camera equipment ring test simulation method applied to ADAS | |
| US20200151957A1 (en) | Method for Displaying A Mixed Reality Image | |
| Falcon et al. | Image quality evaluation of video conferencing solutions with realistic laboratory scenes | |
| Zhao et al. | Objective assessment of perceived sharpness of projection displays with a calibrated camera | |
| CN114189666B (en) | Method for improving mixed color image quality effect of camera and shooting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201012 Address after: 261031, north of Jade East Street, Dongming Road, Weifang hi tech Zone, Shandong province (GoerTek electronic office building, Room 502) Applicant after: GoerTek Optical Technology Co.,Ltd. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: GOERTEK Inc. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |