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17 Dec 2012 Snakes: Active Contour Models Implements snakes or active contour models for image segmentation. Author: Ritwik Kumar

Hi, I am trying to see how well your program works for my MRI kidney images, but I keep getting an error. The GUI will load the image fine, but has a problem when I click filter. This is the error I get:

Undefined function 'conv2' for input arguments of type 'double'
and attributes 'full 3d real'.

Error in filter2 (line 60)
y = conv2(hcol, hrow, x, shape);

Error in filter_function (line 48)
smth = filter2(smask, image, 'same');
Error in snk>pushbutton1_Callback (line 357)
y = filter_function(handles.image,sigma_val); % smooths the

Error in gui_mainfcn (line 96)

Error in snk (line 85)
gui_mainfcn(gui_State, varargin{:});

Error while evaluating uicontrol Callback

Please help! Thanks!

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