Extract Red Objects from Aerial Image

A very simple and short example on image processing.

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

The author wishes to acknowledge the following in the creation of this submission:
SimpleColorDetection

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 7.7 (R2008b)

[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.

[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.

[Faten]

thanks

[Leo Kay]

Thank you

[Azy]

Its not applicable for larger images !!!

[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.