MATLAB: How to save an image at a specific resolution

figureresolution

My MatLab knowledge is terrible. I have made some figures. I want to save them at a very high resolution as a .tiff. How can I do this? I have tried using the
imwrite 
print -r
functions, but this doesn't seem to work.

Best Answer

Do you want to save only the image, as an image? Or do you want to save the figure as an image? If it's just the image, that you may have displayed with imshow(), image(), or imagesc(), then you can use imwrite().
If you want to save the figure, because you have annotation (arrows, text, lines, polygons) in the overlay above the image, or you want to show axes tick marks and toolbars, then you can use saveas(). Or better than saveas() is export_fig(). See this page to download export_fig: http://www.mathworks.com/matlabcentral/fileexchange/
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