Note.

Navigate with top buttons.
Mono will only use color/translucent (white here)
Multicolor will try to use three colors from the photo... red/green/blue and translucent (white here)
Multicolor Croma.  will only use lumens threshold divided into for possible outcome.
You can add a file by browsing the brows button.
Then use the "Calculate" button.
Numbers will be calculated.
This will calculate 63 bytes of data.
This numbers can be used in any commodore64 basic-program og assambler.

page without "Data" and "Byte" heading on the link at the bottom of this page.