Problem filling a contour

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Matthew Alston
Matthew Alston on 14 Jul 2014
Commented: Matthew Alston on 14 Jul 2014
I previously asked a question about how to fill a region of interest in Matlab, and got a response that I should use activecontour to identify the envelope of the region then extract the color channels and add back pure red as a binaryImage to fill the ROI. I've been trying to do this but keep running into an error message:
"Undefined function or variable 'binaryImage'."
Do I need to convert to binaryImage, and if so how do I do that?
My code and the input image are attached, any help would be greatly appreciated.

Accepted Answer

Image Analyst
Image Analyst on 14 Jul 2014
It look like what you call binaryImage is what you previously called "mask" in the code. Change it to say mask and it should work better.
  2 Comments
Matthew Alston
Matthew Alston on 14 Jul 2014
Ah okay that works perfectly, thanks so much for your help!
Matthew Alston
Matthew Alston on 14 Jul 2014
Being pretty familiar with my project, what method would you recommend to analyze the final filled image? The information I need is: How many red-shaded pixels there are, and what percentage of the pixels within the body outline are shaded red. Any help would be much appreciated.

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