how to find red image Pattern Using Matlab

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Bhushan
Bhushan 2014-11-9
回答： Image Analyst 2014-11-9
hello, i am a new matlab user. i am working on Traffic sign recognition system. in that i have to detect trafic sign by using matlab coding.
My question is how we decide threshold values of Hue, saturation and value of any images and how we detect red pattern in that image using these threshold values?

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Image Analyst
Image Analyst 2014-11-9
You can check out the color segmentation demos in my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 One of them is already set up to find red objects.
However since it's a stop sign, you'd be better off using a more sophisticated road sign algorithm like one of those listed here:
http://www.visionbib.com/bibliography/active693.html#Road%20Signs,%20Traffic%20Signs,%20Objects%20along%20the%20Road,%20Inspections
15.3.3.7 Road Signs, Traffic Signs, Objects along the Road, Inspections

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