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How to save an image from imshow() as a .jpeg?

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I am creating an RGB image and displaying using imshow(). Once the image is displayed, if I save the image as .jpeg, it gets a white background to it and the image dimensions change. How can I keep it to its original dimensions? Attached image is what I got when I saved it as a .jpeg file and the dimensions are 240x170. Whereas the original dimensions of the constituting matrices are 100x100.

Accepted Answer

Walter Roberson
Walter Roberson on 18 Mar 2017
Edited: Walter Roberson on 18 Mar 2017
Have a look at print(), which pays attention to the figure PaperPosition* properties and to the figure InvertHardcopy property. It also allows a -r resolution option.
However, I would instead recommend using imwrite of the rgb matrix.

More Answers (1)

Dariush Ashtiani
Dariush Ashtiani on 3 Oct 2018
You can use saveas commad. Say
filename='image1'; saveas(gcf,[filename,'.jpg'])

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