curve fitting

i want to fit a parabola shape curve on a low resolution image in order to find the medial axis of the image , how can i do that ?

[Image Analyst]

You can start by uploading your image somewhere so we can see it. Also give any code you used to binarize your original image.

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers