MATLAB: I want to get the contour of only red bird in the image

image analysisimage processingimage segmentationMATLAB

Hi,
Can any one help, I want to see the contour of birds and then separately contour of red colour bird in the image only. Image attached!
I have tried to get the contour but getting this error.
Code:
I = imread('birds.jpg');
imshow(I)
I0 =rgb2gray(I);
imshow(I0)
figure;
imcontour(I0,2)
Error:
Error in imcontour (line 44)
contour(x,y,a,extra_args{:});
Error in contour (line 9)
imcontour(I0,2)

Best Answer

Change the name of your file to something other than contour. Then in the command window, type clear contour and press enter.
Contour is the name of a MATLAB function that is used in lmcontour. However, due to MATLAB's precedence, it is using your script instead, causing the error.
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