#apertus IRC Channel Logs

yeah, I can imagine

eg I would not bet on an i1Pro or equivalent, maybe a minolta.

well, if you just want to know the spectral profile, measuring the LED shouldn't be too hard, you can assume a gaussian distribution I guess (centered at the major wavelength)

the problem is finding the center accurately.

I mean, would you be able to tell the difference?

so if the wavelength is slightly off in a region where the observer functions overlap

okay, but that would be a very bad choice of wavelength for the LED :)

unfortunately this is what happens for rgb-le displays (not white led displays).

maybe we can talk about the latest operas instead of this idiocy?

luckily, none :)

any new images form the camera?

I have a nice reading list of wavelet transform books, if you're interested. I have discovered booza.org :)

so - show a pic!

I will talk to Trenz tomorrow. Maybe they are willing to publish the docs for their board.

http://www.trenz-electronic.de/de/download/d0/Trenz_Electronic/d1/TE0701/d2/HW_design.html

got it! http://www.trenz-electronic.de/de/download/d0/Trenz_Electronic/d1/TE0720-GigaZee.html

open is a different story of course.

i.e. no schematic or layout for the module itself

yes, I wonder who?

steffen.mauch

well, first a complete schematic of the board (that is basically the essential documentation)

then some kind of layout/mechanical drawing so that the board could be built by a third party

that I wonder whether they will supply :)

http://vserver.13thfloor.at/Stuff/AXIOM/RAW/rcn.raw12.xz

yuck. what is .xz? can you uncompress it to something else?

but if it helps, I can uncompress it for you

it is raw data, doesn't make much sense as tiff

you can display it like this:

note that it is an image from an engineering sample (i.e. known defective sensor)

part of ImageMagick

gimme a minute, I will see if PS can deal with it. what does depth 12 mean?

i.e. 4096x3072x12bit

I cannot find the trick to read this into Photoshop, maybe you can turn it into some other format so I don't have to write a parser.

yeah. strangely enough I managed to read in CUPS raster files

who forced you to use PS? :)

unless you turn it into a pdf.

and if you feed it an rgb file, good luck with stopping your favorite distribution from color-managing the print path.

and personally I prefer network printers anyway, so ...

yes, it is, but it has been around for so long and documented so well :)

so, where is that file?

http://vserver.13thfloor.at/Stuff/AXIOM/RAW/rcn.tiff.xz

btw, what do engineering sesnors cost?

the junk is the result of having a defective sensor

yes. ugh. btw are you familoar with rawdigger?

I know libraw, but I haven't heard of rawdigger before

maybe you don't want to use the software, but you might look at the type of output it generates.

hehe. well you might wish to generate raw histos on the fly for the user.

and for evaluating and calibrating sesnors it has a bunch of useful visualisations.

talk with Iliah :)

but for now, my work is done, and I'm off to bed ...

as I use mainly "semi-cooked" data and have my own toolchains I don't need it.

Bertl: Agree on shapers and matrix. if you can unpooch the data and get a consistent response, shaper + matrix is likely pretty decent.

good morning

off for a nap .. bbl

back now ...

thanks!

would be great to have him also at the lww

and something else Bertl: one major topic of the conference will be 3d printing, concerning the casing of the cam :)

well the cfp is running. but the people talking are very experience, so some of them are working on improvements of printers etc. E.g. we have Bernhard Kubicek who talked at fabcon

anything DLP related?

more personal interest (i.e. just curious :)

time for bed

cya

okay?

looks like :)

they have a carrier support board for development

and of course they do custom designs, already did a CMOSIS chip once.

anyway, they would be interested in doing a chip-carrier board. I guess such a board would be open source if one pays for it :)

well, I haven't found any schematic (yet) maybe you can point me to them

okay, please keep me updated

I still don't completely understand why you want to dump the exiting carrier board, it seems it would work with the Trenz module and their VITA carrier

I doubt it will work out of the box

also having a schematic is only the first step, as you well know ... i.e. what price will be get for which module, what availability is there, etc

go ahead :) btw did you consider an APtina sesnor?

is it just 10 or 12?

I don't know. They have a price list and in fact stock for various qualities (temperature ratings) and can manufacture and test.

for me the electronics price is much lower than sesnor price so I don't rally care.

I mean light temperature correction

so if you have specific sensors (with datasheets) you consider suitable, just drop me a link

you can definitely increase bit depth with sampling more than once

kodak doesn't seem to have a problem with that

btw google "AR1411HS"

neat. stops at 12MP

btw, if you manage to get the Aptina full datasheet, please email it to me

anyway, if you find a large CMOS sensor, please tell me, the problem with CMOSIS is that they will be bound to Leica

yes. if you want to buy the 20K the "customer" needs to assent, and I guess the same will be true of a larger chip. I thought you knew this?

not looking at the 20K :)

maybe there are people here who want to do a still camera :)

My problem is that with the large sensors the sensor costs become huge, so if you don't have volume discounts the open source solution is not attractive. It's impossible to compete eg. with SonyA7

I don't understand.

it's not the open source - it's user who won't want to pay 3x the price of a Sony for an open source solution

yes. you know the reason we managed to get Linux into the universities and firms was tat it could run on obsolete hardware.

we are not trying to compete with them on the price :)

I'm sure about that :)

these guys have low dev costs because their development is incremental.

good for them

of course for images you also need color science etc, but basically we should not be angry at these guys for doing their job properly.

i.e. I'm definitely not angry at any company.

my friends are now suggesting to buy used Sony cameras on ebay, and I think they may have a point :(

Bertl, I wish you a very good night. I'm off to learn wavelets - and my offer of a bibliography :) still stands

a good night to you as well, and good luck!