I have created contour plot and saved the contour matrix..But how can i get the same plot by using the contour matrix ? Does contour matrix shows the locations??

 a=imread('cameraman.tif');
 [c,h]=contour(a,4);

now what c represents can I used for plotting contours without using contor function in matlab? Or In other word How can I store the contour boundary or locations , so I can used those data afterwards???????????????????/

Answer 1

[Chad Greene]

The C2xyz function does this simply.

Answer 2

[Walter Roberson]

Yes, if you read through http://www.mathworks.com/help/matlab/creating_plots/contour-plots.html#f10-2614 you will find a description of the structure of a contour matrix.

[José-Luis]

For inspiration:

http://www.mathworks.com/matlabcentral/answers/60106-how-to-make-one-contour-transparent-in-contourf

[Mona]

[c,h]-imcontour('cameraman.tif'); Act I want to know how contour matrix (here :c) is used to represent the boundary of the object in the form of contour in the image?????

[José-Luis]

A countour is a collection of patches.