#apertus IRC Channel Logs

still around Bertl ?

anything new today ?

haaa yes

though PLL rings a bell

but I already heard this

looks ok Bertl, thanks

when coding

and spend lots of time just to enhance a few lines

nothing wrong with improving details

http://scien.stanford.edu/pages/labsite/1999/psych221/projects/99/tingchen/algodep/vargra.html I'm trying to think about the best way to put the 5x5 region of interest into memory and access it to build the gradients

so it's not even finished, nor remotely functional that I'm already polishing

night

hello!

hi

just posted some thoughts about cooling the image sensor on the apertus forums: https://www.apertus.org/forums/viewtopic.php?f=4&t=1291&p=7369#p7369

some elphel news on their blog: http://blog.elphel.com/2013/11/nc393-development-progress-testing-the-hardware/

well the prototype cant be equiped with one at this stage

we could just play around with a peltier element and a general source of heat, but currently its not so much of a priority

yes thats what I meant with "general source of heat", our funds are very limited and this is an issue to be solved far in the future, so our priorities now are getting video from the HDMI port on the prototype and then raising money in crowd funding

morning everyone!

hello!

40mm square frame

I guess it will be the only fan which fits

I ll add a 40mm one to the design and we will see if that does the trick

ok

ok

i.e. put it on the other side if possible

ok, I had the fan placed next to the VGA port, will move to other side

hey philippej!

how is it going here ?

fine as well, enjoying the crapiest weather one can get in belgium, dirty rain, gray sky, cold wind :-)

exactly !

I just received a fine for the travel to amsterdam, it was so rainy, you remember? I drove 10 km/h above the limit (110 instead of 100) : result : 40 euros :-(

hi philippej !

hello!

yeah, gabe is still working on the dng converter

haven't seen any code yet, but he promised me to send something soon

I'm working on a raw -> anything converter

but I'm spending some time on the debayering part, working slowly

if you have a dng fie, then you can play with all the debayering method available in libraw, so we could see what to expect from the sensor

dng is always without debayering afaik

ah well, then it's probably fine :-)

let me see if I can do that

LibRaw has VNG (the method I'm implementing)

from dcraw

of course

Why so specifically DNGs ? Because it's what we have picked as a format ?

Of course, yes

there is openraw, but with no rela momentum around it, I would not rely on it

source of raw2dng made for raw files produced by magiclantern (hacked canon cameras) : https://bitbucket.org/hudson/magic-lantern/src/tip/modules/lv_rec/raw2dng.c

there is a lot of room for improvement when converting pure raw to dng files

there is a huge room for work there, if you have some ideas, it would be great

in short : it should look good :-)

I suspect the raw we get from cameras is much processed

for now I've gone for a different approach: taking the RAWest input, that is the .raw16 we get and make most the processing during the debayering, that is, pre- and post-debayered

Bertl, correct me if I'm wrong of course

here, more interesting, a dng writer in C : https://bitbucket.org/hudson/magic-lantern/src/tip/src/chdk-dng.c

yes

in fact we have no ideas what others are doing

(for further investigation)

yes, RED cameras are black boxes, so is their RAW and their code

once it's dng it can be opened in any tool

raw is raw, debayering is post processing :)

I'd say it probably can't which seems logical, if it only works with debayered images?

hello everyone, thanks :)

hi Kush

nice, what did you discuss in particular?

the sky is the limit (for guessing data :)

and how to use it for debayering, which is his suggestion

what is currently the most widely/successful debayering algorithm you think=

AHD or VNG?

but I have never seen such an implementation that actually does mutliple runs (maybe its just marketing talk as all algorithmns do things in several steps....)

several steps, yes, several complete passes, I don't know

there's .ppm

yeah, oiio doesn't do dng

it was asked for

FergusL: you mean in that the developer doesn't have time or some other reason?

ah, makes sense

but then on the other hand RAW software might not want to debayer from say an .exr

http://www.cinema5d.com/news/?p=21664

ok time for bed

as I will probably be on my way there before you are in your office yet :)