'How to rescale image node?

Without using HTML, what is a straightforward way to resize external images used in a GraphViz document? For example, with the following:

somenode [size=1 image="littleperson.png", label=""];

How can the image be made smaller? [Preferably without HTML, using HTML if it's most straightforward/unavoidable.]

I'm not having much luck with HTML:

somenode [label=<<IMG SRC="littleperson.png" />>];

Throws back an error.

graphviz


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