Every "item" or "square" on the picture is made from 16x16 pixels.
Assuming the colors and the patterns are not important, we can create a somewhat Datamatrix-looking pattern.
I created it by placing a 16x16 pixel block onto every pattern in the picture:
There were some pixels that seem to be misplaced, so I had to delete them from the borders. In addition to that, the right and bottom border were too small for full 16x16 squares, so I had to change the picture size from 600x450 to 608x464.
The final code looks like this:
(I have not found a scanner/reader for this unfortunately. They are all giving me no results. There may also be errors in this. It's 23:56 here and I had a hard time aligning the squares...
edited it again, because I think the black bars need to be left, at the bottom and without interruptions, so I mirrored the image and "fixed"(?) it.
