2D meshes example

DAVID COHEN

2016 11 29

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Hi everybody, I hope you can help me here. I'm looking for files examples of 2D coordinates of any object (or mat files for matlab). for example the cat attached. I'm looking for a long time and didn't find anything. it doesn't need to be accurate, just to be a nice closed curve of the object that I can load and draw in matlab. any links/ideas?

Edit: That is NOT a do it for me question!!! why did you close my question??? I just asked for a link of 2d files (files of x,y coordinates). I didn't ask for any code!

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DAVID COHEN 2016-11-29

That is NOT a do it for me question!!! why did you close my question??? I just asked for a link for 2d files (files of x,y coordinates). I didn't ask for any code!

Sanjana Ramakrishnan 2016-12-13

You can obtain the boundary of any grayscale image after converting it to a binary image(2 dimensional array of zeroes and ones representing black and white), which would automatically form a closed loop.The following is an example code to obtain the the boundary of a grayscale image in the form of binary image. You can use 'imshow' function to plot the binary image.

% Read grayscale image into the workspace.

>>I = imread('rice.png');

%% % Convert grayscale image to binary image using local adaptive % thresholding.

>>BW = imbinarize(I);

Calculate the perimeters of objects in the image.

>>BW2 = bwperim(BW,8);

Display the original image and the perimeters side-by-side.

>>imshowpair(BW,BW2,'montage')

Please refer the below links for more information:

https://www.mathworks.com/help/images/ref/bwboundaries.html https://www.mathworks.com/help/images/ref/bwperim.html https://www.mathworks.com/matlabcentral/answers/167306-find-the-coordinates-of-an-image

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