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Extract Red Objects from Aerial Image

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23 Mar 2010 (Updated )

A very simple and short example on image processing.

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Description

Given an aerial image of a city block this program extracts all objects deemed "red". It is simple and short and should help those wanting to get a foot in image processing.

Acknowledgements

Simple Color Detection inspired this file.

Required Products Image Processing Toolbox
MATLAB release MATLAB 7.7 (R2008b)
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Comments and Ratings (6)
22 Sep 2011 mohammed

hey, thanks.
But, i have images for different cars, and want to extract the (license plate) for this cars each one alone.
i need to help me in this problem.

26 Aug 2010 Azy

Its not applicable for larger images !!!

03 Aug 2010 Leo Kay

Thank you

09 Apr 2010 Faten

thanks

25 Mar 2010 Husam Aldahiyat

Hey, Image Analyst, your submission is more flexible and robust, but it is much more complex and longer (and harder to understand). This submission simply introduces a couple of IPT commands and their usage, and uses a thresholding technique different than other algorithms (but easier to understand for complete beginners).

The red objects are meant to be small, since the code helps you identify things that can't be seen with your eyes. As a result it isn't %100 accurate, but it works for its smiple purpose.

25 Mar 2010 Image Analyst

This looks like a simpler, less flexible and robust version of this prior submission:
http://www.mathworks.com/matlabcentral/fileexchange/26420-simplecolordetection
And it doesn't use a good sample image because the red objects aren't large enough to be visible. An image with larger red objects would improve this.

Updates
23 Mar 2010

Added requirement.

26 Mar 2010

Added acknowledgment.

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