saving an image with plot

After reading an image, i implemented segmentation algorithm were i plotted a curving on the image tracing the the object of interest. Now i want to save the image with the plot super-imposed on it. Is it possible?? when i am using saving the figure, its taking a screen shot of the figure window and original dimension of the image is lost and there is a white background around the image. Also cant use imwrite as i am basically plotting the curve on the image and not editing the image matrix. Any help would be highly appreciated.

Answer 1

[Image Analyst]

Try the FAQ http://matlab.wikia.com/wiki/FAQ?title=FAQ&cb=5240#How_do_I_save_my_figure.2C_axes.2C_or_image.3F_I.27m_having_trouble_with_the_built_in_MATLAB_functions.

which says to use export_fig.

Answer 2

[Alberto]

You can export as an image the content of the plot window using 'print' command.

As an example, I used this line

print('-djpeg','-r400', strcat( 'temp\\', fileName))

to save in jpg the current plot; 400 is about resolution , and a desired folder address.

Exp'lore the help to see what better fits for you.