CN106686374A - Method, system and device for detecting screen color saturation - Google Patents
Method, system and device for detecting screen color saturation Download PDFInfo
- Publication number
- CN106686374A CN106686374A CN201611124084.5A CN201611124084A CN106686374A CN 106686374 A CN106686374 A CN 106686374A CN 201611124084 A CN201611124084 A CN 201611124084A CN 106686374 A CN106686374 A CN 106686374A
- Authority
- CN
- China
- Prior art keywords
- screen
- saturation
- color
- color saturation
- picture
- 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
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 106
- 230000035772 mutation Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 description 13
- 230000002950 deficient Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000234435 Lilium Species 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
Abstract
The invention relates to a method, a system and a device for detecting screen color saturation, which are used for acquiring a screen image of a saturation color gradient picture displayed on a screen of electronic equipment, acquiring the color saturation of each pixel point in the screen image, and calculating the screen color saturation of the electronic equipment according to each color saturation; and judging whether the screen color saturation detection of the electronic equipment passes or not according to the screen color saturation and a preset screen color saturation range. The process can be controlled and completed through a computer, automatic detection is achieved, detection efficiency is high, whether the standard for detecting the screen color saturation is objective and consistent is judged at every time, manual judgment is not needed, and accuracy and stability of detection of the screen color saturation can be improved.
Description
Technical field
The present invention relates to electronic equipment detection technique field, more particularly to a kind of detection side of screen color saturation
Method, system and device.
Background technology
For the electronic equipment for possessing display screen, in electronic equipment using front needing to carry out various indexs to screen-picture
Detection, including detecting to screen color saturation.By taking television set as an example, television set using be front accomplished by detection
Its screen color saturation.
In conventional art, the screen color saturation detection typically Show Color picture on electronic equipment screen, detection
Personnel observe the display effect of electronic equipment screen by naked eyes, determine whether screen color saturation accords with to observe result
Close the normal standard for showing and require that detect whether to pass through, the accuracy of judge process is relatively low.To detect television screen color
As a example by saturation, after Show Color picture on television screen, the display effect of testing staff's observation television machine screen, if
The colored picture that television screen shows is more bright-coloured, more penetrating, excessively gentler, it is determined that the television screen color saturation
Higher, the standard for meeting normal display requires that detection passes through.Screen color saturation detection is carried out by this kind of mode, it is right
Same electronic equipment is repeatedly observed, and every time the result of observation all may be different, cause to judge screen color saturation
Technical specification is not fully consistent, so as to the accuracy for affecting screen color saturation to detect.
The content of the invention
Based on this, it is necessary to for the relatively low problem of traditional screen color saturation detection mode accuracy, there is provided one
Plant detection method, system and the device of screen color saturation.
A kind of detection method of screen color saturation, comprises the following steps：
The screen picture of saturation color gradient picture is shown on the screen for obtaining electronic equipment；
The color saturation of each pixel in screen picture is obtained, the screen of electronic equipment is calculated according to each color saturation
Curtain color saturation；
If screen color saturation is in the range of default screen color saturation, the screen color for judging electronic equipment is satisfied
Pass through with degree detection.
A kind of detecting system of screen color saturation, including：
Image acquisition unit, for showing the screen map of saturation color gradient picture on the screen for obtaining electronic equipment
Picture；
Saturation computation unit, for obtaining screen picture in each pixel color saturation, it is full according to each color
With degree color saturation meansigma methodss are calculated as screen color saturation；
Saturation judging unit, for when screen color saturation is in the range of default screen color saturation, judging
The screen color saturation detection of electronic equipment passes through.
A kind of detection means of screen color saturation, including host computer, filming apparatus and remote-controlled launcher；
Remote-controlled launcher is used for remote controlled electronic device, and filming apparatus are used to shoot the on-screen displays of electronic equipment；
Wherein, electronic equipment includes remote-receiver；
Host computer drives remote-controlled launcher to send remote signal to electronic equipment, and electronic equipment is received after remote signal
Saturation color gradient picture is shown on screen；
Host computer obtains the screen map that saturation color gradient picture is shown on the screen of electronic equipment by filming apparatus
Picture；
Host computer obtains the color saturation of each pixel in screen picture, calculates electronics according to each color saturation and sets
Standby screen color saturation；
Host computer judges the screen of electronic equipment when screen color saturation is in the range of default screen color saturation
Color saturation detection passes through.
Detection method, system and device according to above-mentioned screen color saturation, it is on the screen for obtain electronic equipment
The screen picture of saturation color gradient picture is shown, the color saturation of each pixel in screen picture is obtained, according to each
Color saturation calculates the screen color saturation of electronic equipment；According to screen color saturation and default screen color saturation
Scope detects whether to pass through come the screen color saturation for judging electronic equipment.This process can have been controlled by computer
Into, automatic detection is realized, detection efficiency is high, and judges that screen color saturation detects whether the standard objective for passing through every time
Cause, need not rely upon artificial judgment, the Stability and veracity of screen color saturation detection can be improved.
Description of the drawings
Fig. 1 is the schematic flow sheet of the detection method of screen color saturation in one of embodiment；
Fig. 2 is the structural representation of the detecting system of screen color saturation in one of embodiment；
Fig. 3 is the structural representation of the detecting system of screen color saturation in one of embodiment；
Fig. 4 is the structural representation of the detection means of screen color saturation in one of embodiment；
Fig. 5 is the structural representation of the detection means of screen color saturation in one of embodiment；
Fig. 6 is the structural representation of the detection means of screen color saturation in one of embodiment；
Fig. 7 is the device connection signal of the detection method of television screen color saturation in one of specific embodiment
Figure；
Fig. 8 is the actual device figure of the detection method of television screen color saturation in one of specific embodiment；
Fig. 9 is the schematic flow sheet of the detection method of television screen color saturation in one of specific embodiment.
Specific embodiment
To make the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, to this
Invention is described in further detail.It should be appreciated that specific embodiment described herein is only to explain the present invention,
Protection scope of the present invention is not limited.
It is shown in Figure 1, it is the schematic flow sheet of the detection method of the screen color saturation of the present invention.In the embodiment
Screen color saturation detection method, comprise the following steps：
Step S101：The screen picture of saturation color gradient picture is shown on the screen for obtaining electronic equipment；
In this step, in order to be able to whether the screen color saturation for preferably judging electronic equipment meets normal display
Standard requirement, can show saturation color gradient picture as the original foundation for judging on screen；
Step S102：The color saturation of each pixel in screen picture is obtained, electricity is calculated according to each color saturation
The screen color saturation of sub- equipment；
In this step, the screen display saturation color gradient picture of electronic equipment, screen color saturation (i.e. screen
Display effect to color) can be calculated according to the color saturation of each pixel in the screen picture for obtaining；
Step S103：If screen color saturation is in the range of default screen color saturation, electronic equipment is judged
The detection of screen color saturation passes through.
In this step, the screen color saturation of normal electronic equipment needs to meet certain standard requirement, that is, shield
Curtain color saturation is needed in the range of default screen color saturation, if calculated screen color saturation is default
In the range of screen color saturation, it is possible to which the screen color saturation detection for judging electronic equipment passes through.
In the present embodiment, it is the screen map that saturation color gradient picture is shown on the screen for obtain electronic equipment
Picture, obtains the color saturation of each pixel in screen picture, and according to each color saturation the screen color of electronic equipment is calculated
Color saturation；Satisfied come the screen color for judging electronic equipment with default screen color saturation scope according to screen color saturation
Detect whether to pass through with degree.This process can control to complete by computer, realize automatic detection, and detection efficiency is high, and
Judge that screen color saturation detects whether that the standard for passing through is objective consistent every time, need not rely upon artificial judgment, can improve
The Stability and veracity of screen color saturation detection.
Optionally, if screen color saturation is not in the range of default screen color saturation, electronic equipment is judged
The detection of screen color saturation does not pass through.
Optionally, it is the original of the corresponding original image of saturation color gradient picture to preset screen color saturation scope
What color saturation determined with default error, the minima of such as default screen color saturation scope is primitive color saturation
With the difference of default error, the maximum for presetting screen color saturation scope is primitive color saturation；
Optionally, calculate electronic equipment screen color saturation when, can using the meansigma methodss of each color saturation as
The screen color saturation of electronic equipment；Saturation color gradient picture can also be shown according on the screen of acquisition electronic equipment
Screen picture arrange weight coefficient, using the weighted mean of each color saturation as electronic equipment screen color saturation
Degree, the screen color saturation of so calculated electronic equipment can comprehensively reflect the color displays effect of whole screen
Really.
Optionally, before showing the screen picture of saturation color gradient picture on the screen for obtaining electronic equipment, can
To show saturation color gradient picture by remote control unit control electronics, make electronic equipment only obtain screen picture it
Front display saturation color gradient picture, saves energy consumption；
Optionally, the screen display of electronic equipment can be adjusted by infrared launcher, infrared launcher
Belong to remote control unit, it may not be necessary to be connected with electronic equipment, simplify the preparation process before detection.Remote control unit can also be bluetooth
The wireless remote controllers such as remote control unit, WIFI remote control units.
Wherein in one embodiment, after the step of screen color saturation detection for judging electronic equipment passes through also
Including the detecting step of the gentle property of change of the screen color saturation of electronic equipment：
The color distance value of each pixel and neighbor pixel is calculated respectively, counts the number of color of object distance value, root
The number that saturation is mutated pixel is obtained according to the number of color of object distance value, wherein, color of object distance value is more than pre-
If the color distance value of color distance value；
If the number of saturation mutation pixel is less than or equal to predetermined number, the screen color saturation of electronic equipment is judged
The detection of the gentle property of change of degree passes through.
In the present embodiment, electronics can also be set by after in the screen color saturation detection for judging electronic equipment
The gentle property of change of standby screen color saturation is detected that the gentle property of change of screen color saturation is by each pixel
What point judged with the color distance value of neighbor pixel, when color distance value is more than pre-set color distance value, show this face
The change of the saturation between corresponding two pixels of color distance value is not gentle enough, a picture in corresponding two pixels
Vegetarian refreshments can be considered as saturation mutation pixel, the color distance value can be considered as into color of object distance value and count number,
The number that saturation is mutated pixel can be obtained according to the number of color of object distance value, if saturation mutation pixel
Number exceedes predetermined number, shows that the gentle property of change of whole screen color saturation is inadequate, it is sufficient to destroying screen color just
Often show, the detection that now can be determined that the gentle property of change of the screen color saturation of electronic equipment does not pass through；Otherwise then examine
Survey passes through.
Wherein in one embodiment, the number that saturation is mutated pixel is obtained according to the number of color of object distance value
The step of comprise the following steps：
Take color of object distance value number 1/2nd as saturation be mutated pixel number.
In the present embodiment, due to color of object distance value two pixels of correspondence, color of object distance value is with one
Calculate on the basis of pixel, two identical color of object distance values are had between two pixels, and saturation is mutated picture
Vegetarian refreshments be for neighbor pixel, therefore can take color of object distance value number 1/2nd as saturation
The number of degree mutation pixel.
Wherein in one embodiment, the screen map of saturation color gradient picture is shown on the screen for obtaining electronic equipment
As the step of comprise the following steps：
Electronic equipment screen to showing saturation color gradient picture shoots, and obtains the first shooting image, the
The region that saturation color gradient picture is located is positioned in one shooting image, the image in the region is intercepted as screen picture.
In the present embodiment, screen picture is obtained by the way of shooting, the attended operation with electronic equipment can be avoided,
Simplify detecting step；Because saturation color gradient picture may not just occupy whole first shooting image when shooting, the
Except detection of the offscreen image-region of saturation color gradient to screen color saturation is nonsensical in one shooting image,
Therefore need to position the region that saturation color gradient picture is located in the first shooting image.
Wherein in one embodiment, the screen map of saturation color gradient picture is shown on the screen for obtaining electronic equipment
It is further comprising the steps of before the step of picture：
Electronic equipment screen to showing white picture shoots, and obtains the second shooting image, and record white picture exists
Boundary coordinate in second shooting image；
The step of electronic equipment screen to showing saturation color gradient picture shoots comprises the following steps：
Same camera site when the electronic equipment screen to showing white picture shoots, to showing saturation face
The electronic equipment screen of color gradual change picture is shot；Wherein, electronic equipment is located in light shielding device；
The step of region that saturation color gradient picture place is positioned in the first shooting image, comprises the following steps：
The region at saturation color gradient picture place is positioned in the first shooting image according to boundary coordinate.
In the present embodiment, due to electronic equipment screen self-luminous, external light source can show that producing one is fixed to its picture
Ring, also can produce certain impact to obtaining screen picture, therefore electronic equipment can be placed in light shielding device, then shading is filled
Electronic equipment in putting carries out screen picture acquisition, eliminates the impact of external light source, improves the standard of screen color saturation detection
True property.Because background is black in light shielding device, after the saturation color gradient picture that photographed screen shows, saturation color
The part of gradual change picture can be black, it is therefore desirable to determine that saturation color gradient picture is concrete in the first shooting image
Position, before the screen picture of saturation color gradient picture can be shown on the screen for obtaining electronic equipment, first same
Camera site shoots to the electronic equipment screen for showing white picture, obtains the second shooting image, white picture and shading
The black background of device is contrasted, and can record boundary coordinate of the white picture in the second shooting image, so just can be with
Boundary coordinate of the saturation color gradient picture in the first shooting image is determined, so as to realize in the first shooting image to full
The region being located with degree color gradient picture is positioned.
Optionally, saturation color gradient picture and the corresponding picture of white picture can be stored in electronic equipment, also may be used
To read by movable storage device, USB flash disk is such as inserted on an electronic device, read the picture in USB flash disk and show on screen
Saturation color gradient picture or white picture.
Wherein in one embodiment, comprise the following steps the step of intercept the image in the region as screen picture：
The image in the region that saturation color gradient picture is located is intercepted, is rectangular image by the image scaling in the region,
Wherein, rectangular image is minimum with the area change of the image in the region；
By preset ratio rectangular image is intercepted as screen picture.
In the present embodiment, because the position of electronic equipment when shooting there may be certain error, now first shoot
The screen display page in image is not necessarily the rectangle of standard, and saturation color gradient picture is generally rectangular cross-section, is convenient for
The correlation computations of color saturation, it is therefore desirable to correct image is shot to first, the mode of correction is the saturation that will be intercepted
The image of degree color gradient picture region is zoomed in and out, and obtains rectangular image, the requirement for zooming in and out be image impairment most
Little, that is, the rectangular image after scaling is minimum with the area change for intercepting image before scaling.In addition, having noise in rectangular image
The region of interference, therefore, it can the distribution situation setting preset ratio according to noise when shooting, and by preset ratio histogram is intercepted
As screen picture, giving up the region of noise interference.
Optionally, preset ratio can give up rectangular image marginal area up and down, the length in lower edges region
Degree respectively accounts for 1% of length on rectangle above-below direction, and the length in left and right edges region respectively accounts for 1% of length on rectangle left and right directions.
It should be appreciated that above-mentioned used term " first ", " second " etc. are only used for distinguishing object, but these herein
Object should not be limited by these terms.
According to the detection method of above-mentioned screen color saturation, the present invention also provides a kind of detection of screen color saturation
System, below just the embodiment of the detecting system of the screen color saturation of the present invention is described in detail.
It is shown in Figure 2, it is the structural representation of the detecting system of the screen color saturation of the present invention.In the embodiment
The detecting system of screen color saturation include with lower unit：
Image acquisition unit 210, for showing the screen of saturation color gradient picture on the screen for obtaining electronic equipment
Image；
Saturation computation unit 220, for obtaining screen picture in each pixel color saturation, according to each color
Saturation computation color saturation meansigma methodss are used as screen color saturation；
Saturation judging unit 230, for when screen color saturation is in the range of default screen color saturation, sentencing
The screen color saturation detection for determining electronic equipment passes through.
Wherein in one embodiment, as shown in figure 3, the detecting system of screen color saturation is also obtained including color distance
Take unit 240, mutation pixel acquiring unit 250 and gentle property detector unit 260；
Color distance acquiring unit 240 is used to calculate the color distance value of each pixel and neighbor pixel, statistics respectively
The number of color of object distance value；
Mutation pixel acquiring unit 250 is used to obtain saturation mutation pixel according to the number of color of object distance value
Number, wherein, color of object distance value is the color distance value more than pre-set color distance value；
Gentle property detector unit 260 is used for when saturation is mutated the number of pixel less than or equal to predetermined number, judges
The detection of the gentle property of change of the screen color saturation of electronic equipment passes through.
Wherein in one embodiment, two points that pixel acquiring unit 250 takes the number of color of object distance value are mutated
One of as saturation be mutated pixel number.
Wherein in one embodiment, image acquisition unit 210 is used to shoot the screen of electronic equipment, obtains the
One shooting image, positions the region that saturation color gradient picture is located in the first shooting image, intercepts the image in the region
As screen picture.
Wherein in one embodiment, image acquisition unit 210 is additionally operable to the electronic equipment screen to showing white picture
Shot, obtained the second shooting image, recorded boundary coordinate of the white picture in the second shooting image；
Same shooting position of the image acquisition unit 210 when the electronic equipment screen to showing white picture shoots
Put, the electronic equipment screen to showing saturation color gradient picture shoots；Wherein, electronic equipment is located at light shielding device
In；
Image acquisition unit 210 positions saturation color gradient picture in the first shooting image and is located according to boundary coordinate
Region.
Wherein in one embodiment, image acquisition unit 210 intercepts the region that saturation color gradient picture is located
Image, is rectangular image by the image scaling in the region, wherein, rectangular image is minimum with the area change of the image in the region；
Image acquisition unit 210 intercepts rectangular image as screen picture by preset ratio.
The detection method one of the detecting system of the screen color saturation of the present invention and the screen color saturation of the present invention
One correspondence, the technical characteristic and its advantage illustrated in the embodiment of the detection method of above-mentioned screen color saturation is suitable for
In the embodiment of the detecting system of screen color saturation.
According to the detection method of above-mentioned screen color saturation, the present invention also provides a kind of detection of screen color saturation
Device, below just the embodiment of the detection means of the screen color saturation of the present invention is described in detail.
It is shown in Figure 4, it is the structural representation of the detection means of the screen color saturation of the present invention.In the embodiment
Screen color saturation detection means include host computer 310, filming apparatus 320 and remote-controlled launcher 330；
Remote-controlled launcher 330 is used for remote controlled electronic device, and filming apparatus 320 are used to shoot the screen display of electronic equipment
Picture；Wherein, electronic equipment includes remote-receiver；
Host computer 310 drives remote-controlled launcher 330 to send remote signal to electronic equipment, and electronic equipment receives remote control
Saturation color gradient picture is shown on screen after signal；
Host computer 310 to be obtained by filming apparatus 320 and show saturation color gradient picture on the screen of electronic equipment
Screen picture；
Host computer 310 obtains the color saturation of each pixel in screen picture, and according to each color saturation electricity is calculated
The screen color saturation of sub- equipment；
When screen color saturation is in the range of default screen color saturation, host computer 310 judges electronic equipment
The detection of screen color saturation passes through.
In the present embodiment, the testing equipment of screen color saturation includes host computer 310, filming apparatus 320 and remote control
Discharger 330；Host computer 310 is connected with filming apparatus 320, and host computer 310 is also connected with remote-controlled launcher 330, upper
Machine 310 can be the computer for directly sending order, and the operation principle of the testing equipment of the screen color saturation is：Host computer
310 send the first control signal to remote-controlled launcher 330, and remote-controlled launcher 330 is sent out after the first control signal is received
Remote signal is sent to electronic equipment；Electronic equipment is received and show on the screen of the electronic device after remote signal saturation color
Gradual change picture, host computer 310 sends the second control signal to filming apparatus 320, and filming apparatus 320 are receiving the second control letter
The screen picture of saturation color gradient picture is shown on the screen that electronic equipment is shot after number and send to host computer 310；On
Position machine 310 receives screen picture is detected after screen picture, and whether the screen color saturation for judging electronic equipment accords with
Close and require.In the testing equipment using screen color saturation, by filming apparatus 320 screen map of electronic equipment is obtained
Picture, can remove the operating process being connected with electronic equipment from, simplify detecting step, using the screen map of 310 pairs of acquisitions of host computer
As being analyzed, automatic detection is realized, judge that screen color saturation detects whether that the process for passing through takes short, it is right to improve
The detection efficiency of electronic equipment screen color saturation, and judge that screen color saturation detects whether the standard for passing through every time
It is objective consistent, artificial judgment is need not rely upon, the Stability and veracity of screen color saturation detection can be improved.
Wherein in one embodiment, as shown in figure 5, the detection means of screen light leak also includes being connected with host computer 310
Alarm device 340；
Screen color saturation not in the range of default screen color saturation when, host computer 310 judge electronic equipment
Screen color saturation detection do not pass through, output alarm signal；
Alarm device 340 is used to receive alarm signal and carry out alarm.
In the present embodiment, the screen color saturation for detecting electronic equipment in host computer 310 detects obstructed out-of-date, on
Position machine 310 can send alarm signal to alarm device 340, and alarm device 340 is received and carry out after alarm signal alarm,
To point out testing staff to process the electronic equipment that the detection of screen color saturation does not pass through in time.
Wherein in one embodiment, as shown in fig. 6, the detection means of screen light leak also includes light shielding device 350, shoot
Device 320, host computer 310 and remote-controlled launcher 330 are arranged in light shielding device 350.
In the present embodiment, due to electronic equipment screen self-luminous, external light source can show that producing one is fixed to its picture
Ring, also filming apparatus 320 can be obtained with screen picture and produce certain impact, therefore filming apparatus 320 can be placed on shading
In device 350, in detection, electronic equipment also is located in light shielding device 350, and electronic equipment is shielded in light shielding device 350
The detection of curtain color saturation, eliminates the impact of external light source, improves the accuracy of screen color saturation detection.By host computer
310 and remote-controlled launcher be also disposed in light shielding device 350, be easy to unified management.
The detection method of above-mentioned screen color saturation, system and device can apply to the electronics such as television set, computer and set
It is standby.
By taking television set as an example, television set producing line needs to be tested after television set has been assembled, including screen color
The judgement detection of saturation.
The detection means of screen color saturation is as shown in fig. 7, when television set to be tested enters screen color saturation
Detection station, the device for operating successively is as follows：Computer (built-in AOI programs), infrared launcher, industrial camera, warning refer to
Show lamp.
AOI (Automatic Optic Inspection, automatic optics inspection) is the necessary links of industrial manufacturing process,
The apparent condition of product is obtained using optical mode, exception or surface blemish are detected with image processing.
Light shielding device realistic picture such as Fig. 8：
Alarm lamp is positioned over light shielding device outside, for display TV machine test result.
Infrared launcher can according to television set read USB flash disk picture selection of time be placed on light shielding device outside or in
Face, when infrared launcher sends ultra-red order against television set, television set still ceaselessly flows in producing line, lifts operation
Efficiency；If the time that television set reads USB flash disk picture is very short, infrared launcher is positioned in light shielding device；Conversely,
Then infrared launcher can be positioned over corresponding position in the outer producing line of light shielding device.
When television set reaches screen color saturation detection station, screen just shows the photo read from USB flash disk, due to electricity
Remain static in test process depending on machine, therefore other all devices can be positioned in the middle of light shielding device.
Light shielding device the right is a defective products discharger.
The connected mode of all parts：A, computer and industrial camera are connected by netting twine, for controlling and transmitting photo
Data, both two-way communications；B, computer and infrared launcher are connected by serial ports, are controlled using specific serial port protocol infrared
The corresponding infrared waveform of discharger transmitting, both two-way communications；C, computer and alarm lamp are connected by serial ports, are passed through
Specific serial port protocol controls alarm lamp, both two-way communications；D, infrared launcher are by the infrared waveform remote control electricity of transmitting
Depending on machine, both one-way communications；E, camera are by acquisition TV set image of taking pictures.
Method flow as shown in figure 9, screen color saturation detection station detection work be full automatic, without the need for workman
Judge.
Prepare before step 1, detection
Script is changed to remote control and is sent by this method by the manual operation of manual remote control device and the with the naked eye mode of subjective judgment
Instruction, camera obtain TV images and carry out the mode of automatic detection.Due to TV set image self-luminous, external light source understands it
Picture is produced affects (for example lighting), therefore whole test process is tested in light shielding device.In the corresponding positions of light shielding device
Put (the inside or outside) and place A, computer：For controlling infrared launcher, control industrial camera, operation AOI programs；B、
Infrared launcher：Media passages are switched to for remote-controlled television set and read USB flash disk picture；C, industrial camera：For gathering electricity
Depending on machine picture；D, alarm lamp：For notifying that workman is processed when defective products is detected.
Step 2, display pure white picture positioning television machine screen
Carrying out can just start detection after the preparation before detection, when television set reaches screen color saturation detection station,
Computer (built-in AOI programs), by infrared launcher remote-controlled television set, is that television set is switched to Media passages and reads U
The picture of disk, the picture is a lily picture, and computer controls industrial camera is taken pictures to television set, industrial camera
Photo is passed back computer AOI routine processes after taking pictures, AOI programs are calculated by carrying out classical angle point algorithm to pure white picture
Four angular coordinates (identifying four coordinates of TV set image) gone out on TV set image side, and record coordinate.
Step 3, display high saturation color gradient picture simultaneously scale the effective picture of intercepting
Computer controls infrared launcher remote-controlled television set is switched to high saturation color gradient picture and controls industry
Camera is taken pictures, and AOI programs intercept high saturation color gradient picture by the coordinate pair that picture is navigated to, and to picture minimum is carried out
Loss rectangle scaling (becomes rectangularity minimum with the area change of irregular tetragon originally) after scaling, according to one after scaling
Fixed ratio intercept picture (take the 98% of length between two parties and intercept the 98% of width as cut, that is, abandon up and down each 1% can
Can there is the region of interference).
Least disadvantage rectangle is scaled：Because when taking pictures, the position of display device there may be certain error,
Such as some millimeters, now, industrial camera is taken in the photo for coming, and the viewing area of display device is not necessarily the rectangular of standard
Shape, therefore need to carry out image rectification.Method for correcting image (is corrected) by the coordinate of 4 angle points：Assume the seat of 4 angle points
Mark is from left to right, from top to bottom respectively A (XA、YA)、B(XB、YB)、C(XC、YC)、D(XD、YD), calculate XAB=XA-XBIt is absolute
Value, XCD=XC-XDAbsolute value, calculate YAC=YA-YCAbsolute value and YBD=YB-YDAbsolute value, according to XAB、XCD、YAC、YBD
The tetragon of this four line segment compositions zooms to the minimum rectangle of area change, the coordinate after recording original coordinates and scaling,
And original photo is scaled for this two groups of coordinates, original photo is corrected to the irregular picture for possessing rectangular display area.
Step 4, the saturation value for calculating each pixel simultaneously judge whether up to standard
For original image, record its initial saturation value and set the limits of error.For TV set image is carried out
The picture that sectional drawing is crossed is scaled after taking pictures, each of which pixel is extracted, the saturation of each pixel is calculated, it is assumed that each county
The rgb value of pilot is respectively Ri、Gi、Bi, then saturation be Si=(max (Ri,Gi,Bi)-min(Ri,Gi,Bi))÷max(Ri,Gi,
Bi) × 100%, such as when the rgb value of pixel 1 is 255,255,0, then saturation is (255-0) 255 × 100%=of ÷
100%, the rgb value of pixel 2 is 150,100,50, then saturation is (150-50) 150 × 100%=66.67% of ÷, asks institute
There is the color saturation average of pixel：CS=∑ Si÷ m, wherein m are pixel quantity, and i is the integer from 1 to m.
By color saturation average CS and primitive color saturation CS for recording ', and limits of error E ' compared
Compared with：
If CS>=CS '-E ', then judge that color saturation is up to standard, carries out next step：Judge whether color gradient is sufficient
It is enough gentle；
If CS<CS '-E ', then judge that color saturation is not up to standard.
Step 5, judge whether color gradient is gentle enough
It is whether gentle enough it is necessary to judge color gradient after judging that color saturation is up to standard, for TV set image enters
Row scales the picture that sectional drawing is crossed after taking pictures, extract each of which pixel, by each pixel and its one pixel in the right
If (having) and a following pixel (if having) carry out comparing by the method for color distance, draw with right pixels point color away from
From Dir 2=(Ri-Rir)2+(Gi-Gir)2+(Bi-Bir)2, the color distance D with following pixelib 2=(Ri-Rib)2+(Gi-Gib)2+
(Bi-Bib)2, and with default color distance permissible value D ', be compared, if if it does, Dir 2>D ', then bad number scale
Record Jia 0.5；If, Dib 2>D ', then it is bad points record Jia 0.5；Bad points sum is drawn after processing all points
N, is compared with default bad points sum N '：
If N<=N ', then judge that the television set color saturation changes gentle property test item and passes through；
If N>N ', then judge that the television set color saturation changes gentle property test item and do not pass through.
In above-mentioned detection process, bad point is saturation mutation pixel, in actual mechanical process, in order to avoid
Color distance between double counting pixel, can only calculate between current pixel point and its right, following pixel
Color distance, can so reduce amount of calculation, color saturation is carried out more quickly and changes gentle property test.
Step 6, detection pass through/do not pass through
Occurs the television set that detection project does not pass through in detection process, computer controls alarm lamp is reported to the police and informed
Producing line PLC (programmable logic controller (PLC)), producing line discharges television set in defective products discharger, workman face on a television set
The label of " defective products " is sticked, and television set is moved from defective products discharger；If telescreen color saturation is examined
Survey passes through, then computer will be detected by state notifying producing line PLC, and producing line control television set circulation carries out it to next station
The detection of his detection project.
In television set automated production producing line, the Integration Assembly And Checkout of television set is every in producing line all in a producing line
Individual operation all must be completed within the regular hour, otherwise be accomplished by workman by stop button, and whole piece producing line waits certain to operate
After the completion of could continue.This producing line requires that the layout and automated procedures of entirety is higher, and manual operation is reduced as far as possible, it is to avoid
The unstable factor that may be brought.
After television set is finished from assembling station assembling, need to detect the screen color saturation of television set, system
The detection of automatic screen color saturation is carried out to television set, after the detection of screen color saturation passes through, under television set is entered
One detection simultaneously eventually enters into vanning station, and television set vanning is put in storage after finishing.If the detection of screen color saturation
Do not pass through, then the alarm of the station sounds in producing line, producing line discharges television set in discharger, workman is on a television set
Stick television set is moved after defective products label in face.
The method that traditional technical scheme uses manual hand manipulation, and the hand-held remote control of workman is distant against television set
Control allows television set to show saturation color gradient picture, and operation repeats to measure big, inefficiency；Workman observes by the naked eye to decide
See and judge, this mode needs workman to judge whether television screen color saturation is qualified by experience, exists larger
Subjectivity, it is possible to occur leakage confirm or confirm error situation, it is impossible to ensure whole batch tested product at this
Stability in test event, and workman can only check whether television screen color saturation is qualified, and for television set
Whether the gentle property of change of screen color saturation is qualified, then more difficult subjective judgment.
In the present invention, using the method for sending remote control code value automatically, operating efficiency is high, and machine also will not be the same to people
Sense tired out can be produced, it is possible to achieve automation mechanized operation, reduce the harm that the duplication of labour brings to workman, lift detection efficiency, also
Can be with objective quick judgement, stability of the improving product in this test event.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of detection method of screen color saturation, it is characterised in that comprise the following steps：
The screen picture of saturation color gradient picture is shown on the screen for obtaining electronic equipment；
The color saturation of each pixel in the screen picture is obtained, the electronics is calculated according to each color saturation
The screen color saturation of equipment；
If the screen color saturation judges the screen color of the electronic equipment in the range of default screen color saturation
Color saturation detection passes through.
2. the detection method of screen color saturation according to claim 1, it is characterised in that set in the judgement electronics
Change after the step of standby screen color saturation detection passes through also including the screen color saturation of electronic equipment is gentle
The detecting step of property：
The color distance value of each pixel and neighbor pixel is calculated respectively, counts the number of color of object distance value, root
The number that saturation is mutated pixel is obtained according to the number of the color of object distance value, wherein, the color of object distance value
It is the color distance value more than pre-set color distance value；
If the number of the saturation mutation pixel is less than or equal to predetermined number, the screen color saturation of electronic equipment is judged
The detection of the gentle property of change of degree passes through.
3. the detection method of screen color saturation according to claim 2, it is characterised in that described according to the target
The number of color distance value is obtained the step of saturation is mutated the number of pixel and comprised the following steps：
Take the color of object distance value number 1/2nd as the saturation be mutated pixel number.
4. the detection method of screen color saturation according to claim 1, it is characterised in that the acquisition electronic equipment
Screen on comprise the following steps the step of show the screen picture of saturation color gradient picture：
Electronic equipment screen to showing saturation color gradient picture shoots, and obtains the first shooting image, described the
The region that the saturation color gradient picture is located is positioned in one shooting image, the image in the region is intercepted as the screen
Image.
5. the detection method of screen color saturation according to claim 4, it is characterised in that the acquisition electronic equipment
Screen on comprise the following steps the step of show the screen picture of saturation color gradient picture：
Electronic equipment screen to showing white picture shoots, and obtains the second shooting image, records the white picture and exists
Boundary coordinate in second shooting image；
The step of electronic equipment screen of described pair of display saturation color gradient picture shoots comprises the following steps：
Same camera site when the electronic equipment screen to showing white picture shoots, to showing saturation color gradually
The electronic equipment screen for becoming picture is shot；Wherein, the electronic equipment is located in light shielding device；
It is described include the step of the region that the saturation color gradient picture is located is positioned in first shooting image with
Lower step：
The region that the saturation color gradient picture is located is positioned in first shooting image according to the boundary coordinate.
6. the detection method of screen color saturation according to claim 4, it is characterised in that the intercepting region
The step of image is as the screen picture is comprised the following steps：
The image in the region that the saturation color gradient picture is located is intercepted, is rectangular image by the image scaling in the region,
Wherein, the rectangular image is minimum with the area change of the image in the region；
By preset ratio rectangular image is intercepted as the screen picture.
7. a kind of detecting system of screen color saturation, it is characterised in that include：
Image acquisition unit, for showing the screen picture of saturation color gradient picture on the screen for obtaining electronic equipment；
Saturation computation unit, for obtaining the screen picture in each pixel color saturation, according to each face
Color saturation calculates color saturation meansigma methodss as screen color saturation；
Saturation judging unit, for when the screen color saturation is in the range of default screen color saturation, judging
The screen color saturation detection of the electronic equipment passes through.
8. a kind of detection means of screen color saturation, it is characterised in that including host computer, filming apparatus and remote-control transmitting dress
Put；
The remote-controlled launcher is used for electronic equipment described in remote control, and the filming apparatus are used to shoot the screen of electronic equipment and show
Show picture；Wherein, the electronic equipment includes remote-receiver；
The host computer drives the remote-controlled launcher to send remote signal to the electronic equipment, and the electronic equipment is received
Saturation color gradient picture is shown on screen to after the remote signal；
The host computer obtains the screen that saturation color gradient picture is shown on the screen of the electronic equipment by filming apparatus
Curtain image；
The host computer obtains the color saturation of each pixel in the screen picture, according to each color saturation meter
Calculate the screen color saturation of the electronic equipment；
The host computer judges that the electronics sets when the screen color saturation is in the range of default screen color saturation
Standby screen color saturation detection passes through.
9. the detection means of screen color saturation according to claim 8, it is characterised in that also include upper with described
The alarm device of machine connection；
The screen color saturation not in the range of default screen color saturation when, the host computer judges the electronics
The screen color saturation detection of equipment does not pass through, output alarm signal；
The alarm device is used to receive the alarm signal and carry out alarm.
10. the detection means of screen color saturation according to claim 8, it is characterised in that also including light shielding device,
The filming apparatus, the host computer and the remote-controlled launcher are arranged in the light shielding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124084.5A CN106686374B (en) | 2016-12-08 | 2016-12-08 | Method, system and device for detecting screen color saturation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124084.5A CN106686374B (en) | 2016-12-08 | 2016-12-08 | Method, system and device for detecting screen color saturation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686374A true CN106686374A (en) | 2017-05-17 |
| CN106686374B CN106686374B (en) | 2018-09-25 |
Family
ID=58867888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611124084.5A Active CN106686374B (en) | 2016-12-08 | 2016-12-08 | Method, system and device for detecting screen color saturation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106686374B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032319A (en) * | 2019-04-18 | 2019-07-19 | 广州申铭信息技术有限公司 | The recognition methods and its application of specific position in a kind of screen interface |
| CN112651056A (en) * | 2019-10-11 | 2021-04-13 | 中国信息通信研究院 | Anti-screenshot display method, device and system |
| CN113496477A (en) * | 2020-04-07 | 2021-10-12 | 华为技术有限公司 | Screen detection method and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013014849A1 (en) * | 2011-07-26 | 2013-01-31 | 日本電気株式会社 | Screen inspection device, screen inspection method and program |
| CN104349159A (en) * | 2013-08-05 | 2015-02-11 | 鸿富锦精密工业（深圳）有限公司 | Screen test system and method |
| CN104679462A (en) * | 2013-11-27 | 2015-06-03 | 英业达科技有限公司 | System and method for detecting screen |
| CN104778929A (en) * | 2015-03-27 | 2015-07-15 | 深圳市华星光电技术有限公司 | Conversion method and conversion system for drive data of display panel |
| CN105424710A (en) * | 2015-11-20 | 2016-03-23 | 上海斐讯数据通信技术有限公司 | Method and device for detecting screen of electronic equipment |
| CN106034231A (en) * | 2015-03-11 | 2016-10-19 | 杭州海康威视数字技术股份有限公司 | Adjusting method and system for image color saturation |
-
2016
- 2016-12-08 CN CN201611124084.5A patent/CN106686374B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013014849A1 (en) * | 2011-07-26 | 2013-01-31 | 日本電気株式会社 | Screen inspection device, screen inspection method and program |
| CN104349159A (en) * | 2013-08-05 | 2015-02-11 | 鸿富锦精密工业（深圳）有限公司 | Screen test system and method |
| CN104679462A (en) * | 2013-11-27 | 2015-06-03 | 英业达科技有限公司 | System and method for detecting screen |
| CN106034231A (en) * | 2015-03-11 | 2016-10-19 | 杭州海康威视数字技术股份有限公司 | Adjusting method and system for image color saturation |
| CN104778929A (en) * | 2015-03-27 | 2015-07-15 | 深圳市华星光电技术有限公司 | Conversion method and conversion system for drive data of display panel |
| CN105424710A (en) * | 2015-11-20 | 2016-03-23 | 上海斐讯数据通信技术有限公司 | Method and device for detecting screen of electronic equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032319A (en) * | 2019-04-18 | 2019-07-19 | 广州申铭信息技术有限公司 | The recognition methods and its application of specific position in a kind of screen interface |
| CN112651056A (en) * | 2019-10-11 | 2021-04-13 | 中国信息通信研究院 | Anti-screenshot display method, device and system |
| CN112651056B (en) * | 2019-10-11 | 2024-05-31 | 中国信息通信研究院 | Anti-screenshot display method, device and system |
| CN113496477A (en) * | 2020-04-07 | 2021-10-12 | 华为技术有限公司 | Screen detection method and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106686374B (en) | 2018-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106780521A (en) | Screen light leakage detection method, system and device | |
| CN106713903B (en) | Method and system for detecting screen brightness uniformity | |
| CN104900178B (en) | Brightness abnormal image detection method and LED display uniformity correcting method | |
| US10750141B2 (en) | Automatic calibration projection system and method | |
| CN108760767A (en) | Large-size LCD Screen defect inspection method based on machine vision | |
| CN107291246A (en) | The method and device of virtual implementing helmet depth of field measurement based on image scale | |
| CN105092473B (en) | A kind of quality determining method and system of polysilicon membrane | |
| CN104777172B (en) | A kind of quick, intelligent detection device of optical lens substandard products and method | |
| CN106686374B (en) | Method, system and device for detecting screen color saturation | |
| CN109471276A (en) | A kind of liquid crystal display colour cast defect inspection method and device | |
| CN102117590B (en) | Color adjustment device for display screen and color adjustment method thereof | |
| CN104992446B (en) | The image split-joint method of non-linear illumination adaptive and its realize system | |
| CN104103069B (en) | Image processing apparatus, image processing method and recording medium | |
| CN109470179A (en) | A kind of extensive water ploughs vegetables growing way detection system and method | |
| CN104766310B (en) | light source detection system and detection method | |
| CN105139384B (en) | The method and apparatus of defect capsule detection | |
| CN106454338B (en) | Method and device for detecting picture display effect of electronic equipment | |
| CN106908081A (en) | Laser level detecting system and method based on ccd video camera | |
| CN106803410A (en) | LED display module testing equipment | |
| CN208366871U (en) | Detection system | |
| CN106803412A (en) | LED display module testing equipment and method | |
| CN106093052B (en) | A kind of broken yarn detection method | |
| CN105744261B (en) | The test system and method for testing of set top box front panel | |
| CN108986721A (en) | A kind of test pattern generation method for display panel detection | |
| CN206790647U (en) | Equipment for detecting screen brightness uniformity |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |