Apparently, the stock opencv on my Raspberry Pi 3 does not include the
nonfree.hpp library. Recommendation is to compile opencv from source
on the Raspberry Pi. That seems to require a source compile of Qt5...
Uge, that's a 24 hour or longer compile because the Raspberry Pi 3 is
only a 1.2 Ghz quad core with 1 gig of ram. I need to do
cross compiling on a more powerful Linux based system. I have a
Fedora 26 box with an AMD FX processor, 8 cores total. How can I
compile for the Raspberry Pi 3 Model B on my system that is more
powerful and that has more hard disk space available? I'm working
with a 32gb SD card that is 50% full right now.
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