Quote from: mephala on June 08, 2016, 02:08:03 PM

Everything else failing, I too think we need to make some sense out of the green piping in the background. Especially the dark green piping doesn't seem random at all

Here is a possible segmentation of the image by content:
http://imgur.com/iylMHIc

This animation illustrates possible depths of the image content and might help to see which pipe goes where. (here it assumes QR on top of AZTEC CODE AND DARK PIPES on top of YELLOWISH PIPES on top of LIGHT PIPES on top of RED GRID)
http://imgur.com/V5Gfo3I

GIMP file with image content split out to different layers:
https://mega.nz/#!6gYB2K7D!7WD3zHx0RfQ0y3po6Ij3SYSAWV7ATDkJkX9AerybMOI

Disclaimer: another red-green colorblind person here, so do not blindly trust this segmentation. It probably needs corrections and needs to be split out further still.