#apertus IRC Channel Logs

morning folks!

morning se6astian

indeed, where have you been? :)

I was in the real world, almost exclusively :)

how is it going here ?

what is the real world? never heard of it before....

you probably never met the guy with those red and blue pills

so we need ideas for the OSCE

but the event should focus very much not just on open source but also on circular economy topics

of course we are all for recycling, reusing, modularity, but how to turn that into a challenge to work on together in those few days

reading the site

so I would suggest to put the focus on that, maybe work on testing the boards and parts and documentation for repair?

what do we know about the people who will work on "our" project?

you can already bring our experience to the table

me again, is there some place that explains the whole image processing pipeline in details? It's on the wiki, but I have some questions :-)

here : https://wiki.apertus.org/images/c/cc/Image01.png

with the second fpga pass used to transform raw image into something that is useable by the hdmi encodder

here with more detail

am I correct with the fpga-> memory -> fpga -> hdmi thing ?

sensor -> fpga -> memory

the fpga writes to ram the processed "raw" image, then reads it in another part to debater, etc. ?

then I'm wondering what the shuffle part means

on the AXIOM Alpha, we use the very unfortunately connected Analog Devices HDMI chip, which has certain requirements what lanes contain what color information

and the cdc inside the hdmi encoder?

csc, sorry

or color conversion that is

out of curiosity, the interpolation adds some bits for hdmi ?

philippej: do we need to propose a specific project? <- it should be a meta task (for an city planning hackaton it was "plan a school")

as we can not transfer full pixel data to the AD HDMI encoder (because of the unfortunate wiring) we have to send 4:2:2 format, which requires interpolation

se6astian: we could find a project that requires some kind of imaging, but I don't really see what it could be. Maybe something that involves computer vision and some big data powder on top of it :-)

off for now ... bbl

Bertl_oO: I hope there is more than merely a 3x3 matrix as a matrix only can really work on theoretically perfect data.

troy_s: not sure what you're talking about

on the analog devices chip, all there is is a 3x3 matrix, 3 offsets and clipping to specific ranges

Hrm. I guess that explains why so many imaging devices end up with the rat piss yellow highlights issue or something close.

at least that is what the examples show, so I don't think it is intended as generic color correction

Gotcha.

yes, we will put that into the FPGA

possible