#apertus IRC Channel Logs

I' have a few questions about using C in Python

I'll do my darndest (and probably end up googling things)

Hmm, I think I was just praising it's ease of use and presence, but I know C++ alright and I have integrated them in the past

^?

Nah, start here: http://docs.python.org/3/extending/extending.html

thanks !

good afternoon

or rather, morning everyone !

;P

I see :)

hi opusprod

time to go home for me

morning everyone!

back

very in teresting discussion on cml about testing red's sensor response to colour

or the thread name ?

thread name dear oh dear (dn't ask me why, it started with someone saying that all nominated movies were shot on arri)

is to nail down a particular color. The narrower the range, the more exact the color, but the less

If the filters are so wide that each nearly overlaps the others, you have crosstalk that can't be

Earlier in the discussion, someone tested the red epic, and in red's case, it seems they choosed a colour array that have a quite wide range, so colour is harder to recover but sensibility is better

yes

what is interesting is that no one knows what is done inside each camera, and it seems a lot of people believe that raw output = unprocessed

then the sensor will see one yellow (the result of mixing red and green light) but not the other yellow (i.e. the range between 560 and 620nm)

yes they added it in a recent revision of the datasheet

let me update github

bottomline, if you want to avoid blind color spots, you have to have overlaping filters

done

maybe add the ANs as well, and I think I have a bunch of other documents which might we worth adding

(but double check with cmosis, not that they have a problem)

firstly I would like to understand what "dynamic range of colors" means exactly?

se6astian: out of context it sounds like a PR term :)

(posted)

I am subscribed to the list as well and read a mail from time to time but was wondering if they really know what they are talking about...

well, unfortunately the whole thread is not online afaik, but it is interesting

there are a lot of people on this huge list, primarly made for DOPs, some do know what they are talking about, you can easily notice them, they pop in the right threads generallu

obviously I also was part of the problem as I just didnt pay enough attention

there seems to be the idea that the RED MX sensor could be using a different color filter array than the classic bayer pattern

"CYGM gives more accurate luminance information than the Bayer filter, hence a wider dynamic range, but at the expense of color accuracy. "

though you can not as accurately say of which wavelength the photon originally was (using the reading from a 2x2 photosite block)

I just wanted to point those discussions among people who (at least some) look like they know what they are doing, and it's fascinating to see how much reverse engineering is being done to understand what the hell is doing a particular camera. So, an interesting use case for us being opensource.

agreed philippej, I like how CML is a melting pot of all this

sure

comparing the cmv- to kac-, the cmv would be more like red (violet instead of blue on 400nm)

good night