Ah; you don't double-click on the executive; you have to run it from the command prompt itself or through batch program like I do. See my post #34 above. Save that into a voron.bat (or whatever.bat) file. Then, create a shortcut to your desktop and then you can just drag and drop your png file (has to be a png file). The result will be an svg file which can GIMP can open (it's a vector file that Inkscape can open too of course).

i tried it through cmd and it does the same as double click

C:\Users\admin>cd C:\Users\admin\Desktop\voronoi
C:\Users\admin\Desktop\voronoi>start voronoi.exe
C:\Users\admin\Desktop\voronoi>

that is what i typed but still...

also i did the bat file you mentioned
(copied your line ,pasted it at a text document,saved it as .bat)
and still nothing

The bat file is meant for drag and drop. Once you created the shortcut to the bat file (bat file being in same directory as voronoi stipper), you then drag and drop the png file onto the bat file and it executes and saves result to same location where the png file was located at.

oh wait something happened!
I was drag n dropping to the bat file itself,when I created a shortcut to the desktop and drag n dropped a png file,
it created an svg with the picture dotted!
thanks so much!
I am now editing the bat file to choose the settings I want!

Look forward to seeing some of your creations with it, tattoo.