CN102034249A - Image edge detection method and panel quality detection method - Google Patents
Image edge detection method and panel quality detection method Download PDFInfo
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- CN102034249A CN102034249A CN2010105426962A CN201010542696A CN102034249A CN 102034249 A CN102034249 A CN 102034249A CN 2010105426962 A CN2010105426962 A CN 2010105426962A CN 201010542696 A CN201010542696 A CN 201010542696A CN 102034249 A CN102034249 A CN 102034249A
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Abstract
The invention discloses an image edge detection method and a panel quality detection method. The image edge detection method comprises the following steps of: performing binarization processing on an image to be detected so as to generate a first image; detecting an image edge of the first image to generate a second image; performing fuzzy processing on the second image to generate a third image; and performing edge line detection according to the third image. Therefore, the accuracy of the image edge detection can be improved.
Description
Technical field
[0001] the invention relates to a kind of method for detecting, and particularly relevant for a kind of image edge method for detecting and panel quality method for detecting.
Background technology
According to the visual characteristic of human eye, when but right and left eyes is watched identical presentation content respectively had two images of different parallaxes, can constitute a stereopsis.Therefore, the mechanism of stereopsis display technique is the visual characteristic according to above-mentioned human eye, shows two images with different parallaxes that left eye and right eye are watched respectively, and constitutes stereopsis.
The quality discrimination mode of the known stereoscopic image display panel personnel that normally adopt judge the display quality of stereoscopic image display panel with naked-eye observation.Yet this mode is easily because of the tired result who has influence on its judgement of personnel, and the criterion that is lack of consistency.Simultaneously, if when judging the display quality of stereoscopic image display panel, in the time of then can spending than multitask with naked-eye observation.
Summary of the invention
The invention provides a kind of panel quality method for detecting, can judge the display quality of display panel automatically.
The invention provides a kind of image edge method for detecting, can avoid judging by accident the image edge of detecting with image.
The present invention proposes a kind of image edge method for detecting, and it comprises the following steps.One detecting is carried out a binary conversion treatment to produce one first image with image.The image edge of detecting first image is to produce one second image.Second image carried out a Fuzzy processing to produce one the 3rd image.Carry out the edge line detecting according to the 3rd image.
In one embodiment of this invention, above-mentioned binary conversion treatment comprises: select detecting one of them basic color as binary conversion treatment with a plurality of colors of image; Determine a threshold value according to basic color; According to threshold value detecting is carried out binary conversion treatment with image.
In one embodiment of this invention, above-mentioned basic color is the color of a complete demonstration.
In one embodiment of this invention, above-mentioned selection detecting comprises with one of them step of a plurality of colors of image: detect putting in order of color; It is the color of a particular value that selection puts in order.
In one embodiment of this invention, above-mentioned particular value is 2.
In one embodiment of this invention, the shielding of above-mentioned Fuzzy processing (mask) size is 3 * 3.
In one embodiment of this invention, the 3rd above-mentioned image carries out the edge line detecting for utilizing Hough (Hough) transformation approach.
In one embodiment of this invention, the image edge of the first above-mentioned image is detected for utilizing Canny edge detection method.
The present invention also proposes a kind of panel quality method for detecting, is applicable to a stereo display panel.Panel quality method for detecting comprises the following steps.Show a testing image in stereo display panel; The acquisition testing image is to obtain a detecting image; Detecting detecting one datum line of image; See through as the edge line of above-mentioned image edge method for detecting detecting detecting with image; The slope of benchmark line computation edge line; Judge the quality of stereo display panel according to the slope of edge line.
In one embodiment of this invention, above-mentioned detecting image captures for seeing through a video-signal system.
In one embodiment of this invention, being calculated as of the slope of the detecting of above-mentioned datum line and edge line and edge line sees through the program that a calculator system moved and finishes.
In one embodiment of this invention, above-mentioned stereo display panel is a parallax formula stereo display panel.
Based on above-mentioned, panel quality method for detecting of the present invention, its simple eye image that sees through video-signal system acquisition stereo display panel is as the detecting image, and see through datum line and edge line that image is used in the program detecting that runs on calculator system, with the angle between calculating datum line and the edge line and the slope of edge line, judge the display quality of stereo display panel in view of the above.By this, can be with the judgement process automation of display panel.Image edge method for detecting of the present invention, it carries out obfuscation behind edge detection, to eliminate the noise of non-image edge, can avoid the image edge of false judgment detecting with image by this, and improves the accuracy of image edge detecting.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Fig. 1 is the system schematic according to the panel quality detecting system of one embodiment of the invention.
Fig. 2 is the process flow diagram according to the panel quality method for detecting of one embodiment of the invention.
Fig. 3 is the process flow diagram according to the image edge method for detecting of one embodiment of the invention.
Fig. 4 is a synoptic diagram of using image according to the detecting of one embodiment of the invention.
Fig. 5 is the synoptic diagram according to first image of one embodiment of the invention.
Fig. 6 is the synoptic diagram according to second image of one embodiment of the invention.
Fig. 7 is the synoptic diagram according to the 3rd image of one embodiment of the invention.
Fig. 8 is the synoptic diagram according to the edge line detecting result of one embodiment of the invention.
Fig. 9 is the synoptic diagram according to user's interface of one embodiment of the invention calculator system.
Embodiment
Fig. 1 is the system schematic according to the panel quality detecting system of one embodiment of the invention.Please refer to Fig. 1, panel quality detecting system 100 can be in order to the display quality of detecting stereo display panel 50, and panel quality detecting system 100 comprises video-signal system 110 and calculator system 120.Wherein, stereo display panel 50 is parallax formula stereo display panel for example, and video-signal system 110 is hand-held video camera or network camera for example, and calculator system 120 is personal computer or mobile computer for example.When the display quality of detecting stereo display panel 50, meeting shows a testing image at stereo display panel 50, and uses image through video-signal system 110 acquisition testing images to produce to detect, and detecting can be sent to calculator system 120 with image.See through the program that runs on calculator system 120, can judge the display quality of stereo display panel 50 with image according to detecting.
Fig. 2 is the process flow diagram according to the panel quality method for detecting of one embodiment of the invention.Please refer to Fig. 1 and Fig. 2, at first, show testing image (step S210), and see through video-signal system 110 acquisition detecting images (step S220) in stereo display panel 50.Because stereo display panel 50 can transmit image respectively to left eye and right eye, and general video-signal system 110 can't capture two image simultaneously, thus video-signal system 110 this for the simple eye image of acquisition with as the detecting image.Generally speaking, detecting can be the colour of along continuous straight runs variation layer pattern (being the Moire pattern) gradually with image, but can also be gradually layer pattern or black of GTG, and this can know that usually the knowledgeable changes voluntarily according to this area.And, because the difference of the light splitting technology of stereo display panel 50, stereo display panel 50 shown then corresponding light splitting technologies of testing image and different then.
Then, detecting can be sent to calculator system 120 with image, and uses the datum line (step S230) of image by the process monitoring detecting of operation in the calculator system 120.And, detect the edge line (step S240) of using image by the process monitoring of operation in the calculator system 120 equally, wherein detecting is detected for seeing through the image edge method for detecting with the edge line of image.And the datum line that the program of operation meeting foundation is detected in the calculator system 120 calculate the slope (step S250) of the edge line that is detected, that is calculate angle between datum line and the edge line, and judge the display quality (step S260) of display panel according to the slope at edge.
And the slope of edge line, the result of determination of calculating angle between datum line and the edge line and display panel can be shown in user's interface of calculator system 120, with the foundation as the display quality classification of display panel.By this, the program that can see through video-signal system 110 and run on calculator system 120 is carried out the detection of the display quality of display panel, detects the error that is caused to avoid personnel, and can promote the speed that display panel detects.Wherein, step S230 and 240 order are in order to explanation, but in fact execution sequence can carry out on the contrary or simultaneously, and this decides according to performed calculator system.
With the next image edge method for detecting of further using the edge line of image in order to the detecting detecting.Fig. 3 is the process flow diagram according to the image edge method for detecting of one embodiment of the invention.Please refer to Fig. 3, in this hypothesis detecting with image as shown in Figure 4, Fig. 4 illustrates gradually layer pattern of colour that along continuous straight runs changes, and the central authorities of the Z-axis of the pattern horizontal line that a high brightness can occur is with as datum line.Wherein, in the present embodiment, the main color of regional A1 and A3 is red, and the main color of regional A2 is blue, and the main color of regional A4 is green.But in other embodiments, the distribution and the main color in zone can know that usually the knowledgeable changes voluntarily according to this area, and layer variation gets final product but its pattern still presents gradually.
According to Fig. 4, be benchmark with detecting with basipetal 1/4 place of image (being shown in the dotted line BL1) at this, detecting puts in order to blue, red, green with the color of image.Therefore and in this redness is the color of complete demonstration, is basic color in this redness, that is is 2 color to put in order as color substantially.Behind the basic color of decision, can determine a threshold value (threshold) according to basic color, be threshold value in this GTG value 106 with redness.Then, according to threshold value detecting is carried out binary conversion treatment with image, to produce first image (step S310), wherein first image as shown in Figure 5.
Please refer to Fig. 5, the part of red GTG value less than 106 can be filtered and present black in pattern shown in Figure 4, and remainder then presents white (being bright spot).Then, the image edge of detecting first image to be to produce second image (step S320), wherein second image as shown in Figure 6, and the detecting of image edge can utilize Canny edge detection method to carry out.Please refer to Fig. 6, the part in image sideline then shows with bright spot, yet being the white line that level stretches is the part of corresponding datum line, but not the edge line between color, therefore can carry out Fuzzy processing to produce the 3rd image (step S330) to second image, wherein the 3rd image as shown in Figure 7, and the shielding size of Fuzzy processing is example at this with 3 * 3.
Please refer to Fig. 7, the image edge of corresponding datum line promptly has been eliminated after obfuscation, then carries out edge line detecting (step S340) according to the 3rd image, and wherein the edge line detecting can utilize Hough (Hough) transformation approach to carry out.If carry out the edge line detecting with the image sideline in the zone 710 of Fig. 7 (being bright spot), the result is shown in the lines 810 of Fig. 8 in its detecting.If carry out the edge line detecting with the image sideline in the zone 720 of Fig. 7 (being bright spot), the result is shown in the lines 820 of Fig. 8 in its detecting.According to above-mentioned, the lines of detecting out (as 810 and 820) are the edge line of image, follow the angle between edge calculation line and the datum line 830 and the slope of edge line, judge the display quality of display panel in view of the above.
In addition, above-mentioned image edge method for detecting also can be used for detecting datum line 830, and its difference is the threshold value difference that sets.As shown in Figure 4, the benchmark position is the horizontal line of a high brightness, thus threshold value can be set at red, blue, green GTG value be 106, the result is shown in the lines 830 of Fig. 8 in its detecting.And though image edge method for detecting of the present invention is applied to the detection of stereo display panel 50, it is actual to can be applicable in the image processing of others for example judgement of anchor point.
Fig. 9 is the synoptic diagram according to user's interface of one embodiment of the invention calculator system.Please refer to Fig. 9, in zone 910, user's interface shows to detect uses image, and wherein lines 911 are edge line, and 913 is datum line, and 915 is standard lines (i.e. Zui Jia edge line).In zone 920, show the result of detecting, wherein lines 921 are edge line, 923 is datum line.In zone 930, show the slope (i.e. SLOP in the diagram) of edge line and the angle (i.e. RADIAN in the diagram) between edge line and the datum line.In zone 940, show image input format (being the Format Color in the icon), image input pattern (being the Mode in the icon) and white balance (Gain in the diagram).
In zone 950, show a plurality of adjustment projects, the Canny Thredshold 1 during promptly edge detection intensity 1(promptly illustrates), the Canny Thredshold 2 of edge detection intensity 2(in promptly illustrating), straight line detecting intensity (being the Hough thredshold in the icon) and binaryzation intensity (i.e. Filter in the diagram).In zone 960, show a plurality of operating keys, i.e. pick-up image (being the Capture in the icon), broadcast real-time imaging (being the Start in the icon), storage detected with image (being the Save Source Image in the icon), stored the 3rd image (being the Save Result Image in the icon) and termination routine (being the Exit in the icon).
In sum, the panel quality method for detecting of the embodiment of the invention, its simple eye image that sees through video-signal system acquisition stereo display panel is as the detecting image, and see through datum line and edge line that image is used in the program detecting that runs on calculator system, with the angle between calculating datum line and the edge line and the slope of edge line, judge the display quality of stereo display panel in view of the above.By this, can be with the judgement process automation of display panel.The image edge method for detecting of the embodiment of the invention, it carries out obfuscation behind edge detection, to eliminate the noise of non-image edge, can avoid the image edge of false judgment detecting with image by this, and improves the accuracy of image edge detecting.
Though the present invention with embodiment openly as above; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking aforesaid the claim person of defining.
Claims (2)
1. an image edge method for detecting is characterized in that, comprising:
One detecting is carried out a binary conversion treatment to produce one first image with image;
The image edge of detecting this first image is to produce one second image;
This second image carried out a Fuzzy processing to produce one the 3rd image; And
Carry out the edge line detecting according to the 3rd image.
2. image edge method for detecting as claimed in claim 1 is characterized in that, this binary conversion treatment comprises:
Select this detecting one of them basic color as this binary conversion treatment with a plurality of colors of image;
Determine a threshold value according to this basic color; And
According to this threshold value this detecting is carried out this binary conversion treatment with image.
3. image edge method for detecting as claimed in claim 2 is characterized in that, this basic color is the color of a complete demonstration.
4. image edge method for detecting as claimed in claim 2 is characterized in that, selects this detecting to comprise with one of them step of those colors of image:
Detect putting in order of those colors; And
It is the color of a particular value that selection puts in order.
5. image edge method for detecting as claimed in claim 4 is characterized in that, this particular value is 2.
6. image edge method for detecting as claimed in claim 1 is characterized in that, the shielding size of this Fuzzy processing is 3 * 3.
7. image edge method for detecting as claimed in claim 1 is characterized in that, the 3rd image carries out the edge line detecting for utilizing the Hough transformation approach.
8. image edge method for detecting as claimed in claim 1 is characterized in that, the image edge of this first image is detected for utilizing Canny edge detection method.
9. a panel quality method for detecting is applicable to a stereo display panel, it is characterized in that, comprising:
Show a testing image in this stereo display panel;
Capture this testing image to obtain a detecting image;
Detect the datum line of this detecting with image;
See through image edge method for detecting as claimed in claim 1 and detect the edge line of this detecting with image;
Calculate the slope of this edge line according to this datum line; And
Judge the quality of this stereo display panel according to the slope of this edge line.
10. panel quality method for detecting as claimed in claim 9, it is characterized in that, this detecting image captures for seeing through a video-signal system, and the program of being moved through a calculator system that is calculated as of the detecting of this datum line and this edge line and the slope of this edge line is finished.
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| CN103134740A (en) * | 2011-11-30 | 2013-06-05 | 乐金显示有限公司 | System and method for inspecting misalign between display panel and film patterned retarder |
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Effective date of registration: 20230629 Address after: No. two, No. 1188 West Ring Road, Shengze Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Shengze science and Technology Pioneer Park Development Co.,Ltd. Address before: 215217, No. 88, Tung Hing Road, Tongli District, Wujiang Economic Development Zone, Suzhou, Jiangsu Patentee before: CPTW (WUJIANG) Co.,Ltd. Patentee before: Taiwan Zhonghua Picture Tube Co.,Ltd. |
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