Convert red portion to white and the background to black . Second part is to detect road sign and put bounding box on it.

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I need to extract the road sign from an image. Can someone help me with this as I am new to matlab.

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Image Analyst
Image Analyst 2020-9-18
Try the Color Thresholder on the Apps tab of the tool ribbon. Otherwise look in the Computer Vision Toolbox or Automated Driving Toolbox for road sign demos.
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Image Analyst
Image Analyst 2020-9-18
You need to find thresholds for "red" that work for the entire range of "reds" that you expect to see. I made some adjustments using the Color Thresholder and it works fine. Not sure why are not even trying that app, but you really should.

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