Since this topic recently came up again, I just wanted to note that image files can be very large, and storing the image data in a KM Variable permanently may not be wise.
After you finish with a macro like the one @peternlewis provided, be sure to delete the KM Variables that contain the image data:
Actually, I would not even keep the image in a KM Named Clipboard. Store the image as a file, already coded to 'base64", and then load into a Local Variable when needed:
