MATLAB: Contour Plot to Image.jpg

Question

Hello!

I need to know how to save or export a 2D Contour plot into an Image file (preferible with .jpeg extension).

I would like also to be able to specify the output location (the folder where the image will be saved), I have tried with this:

contourf(xx,yy,turbul_interp);
xlabel('AXIS X')
ylabel('AXIS Y')
hgsave('name_of_my_image');

But then it appears the following error message:

??? Error using ==> save
Unable to write file name_of_my_image.fig: permission denied.

Any idea about how to do it?. Thanks!

Answer 1

I would not use jpg format. I never create JPEG images. JPEG can/will degrade your image. Use PNG instead.

What does this report in the command window if you call it just before hgsave:

pwd

You probably can't save to that folder.

Anyway, even if you get that solved, I'd take a look at the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_save_my_figure.2C_axes.2C_or_image.3F_I.27m_having_trouble_with_the_built_in_MATLAB_functions.