Create Lithophanes from a photo

Is there an extension in Sketchup to create Lithophanes from photos or is there another common software that does that?

I don’t think so… but this may be the closest:
SketchUp Plugins | PluginStore | SketchUcation tt_bitmap2mesh

Just two result of search (not tried) :
Image to Lithophane (
ItsLitho • Free Online Image to Lithophane Maker