| 02:02 | Rambutan2000 | joined the channel |
| 02:26 | Bertl | welcome Rambutan2000
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| 02:48 | Rambutan2000 | Hi guys! Its Geordie here
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| 02:49 | Bertl | Hey Geordie! welcome to the channel!
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| 02:56 | Rambutan2000 | Thanks! I was going to reply to Sebastian's email but then thought I should introduce myself here. I'm on my phone so please.forgive any odd spelling :p
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| 02:56 | Bertl | hehe, what folks do with their phones nowadays :)
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| 02:59 | Rambutan2000 | Hah, mainly due to the fact I'm at work at the moment and need to get an irc client that supports connection through a proxy
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| 02:59 | Bertl | the web irc doesn't work?
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| 04:31 | Rambutan2000 | Hi! I'm back using webchat, I litteraly haven't used IRC for about 10 years so didn't know this was here
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| 04:31 | Bertl | wb
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| 04:44 | Rambutan2000 | I've been looking through the ToDo list, I can definitely help out with those
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| 04:46 | Rambutan2000 | So it's 6:45? in Austria?
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| 04:48 | Bertl | yep
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| 05:00 | Rambutan2000 | Also Sebastian was talking about work on the physical design, has anyone ever done a study on the current "competition"? ie boards of likes and dislikes?
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| 05:05 | Bertl | I guess nothing serious has been done in this regard yet
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| 05:06 | Bertl | it seems that professionals prefer a solid case which can be carried comfortably on the shoulder
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| 05:11 | Rambutan2000 | yup, I'd be taking RED camera's as a base point and looking at some high end Sony gear
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| 05:14 | Rambutan2000 | How do you guys usually trasfer larger files to each other? do you submit everything though Github?
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| 05:14 | Bertl | depends, upload services, web servers, etc
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| 05:28 | Bertl | sebastian will be up in an hour or so ... I'm off to bed now
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| 05:28 | Bertl | have a good one everyone!
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| 05:30 | Rambutan2000 | seeya!
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| 07:13 | se6astian | good morning
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| 07:34 | Rambutan2000 | Morning!
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| 07:34 | Rambutan2000 | it's Geordie here
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| 07:55 | se6astian | Hi Geordie, PM!
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| 07:57 | Rambutan2000 | hah yeah its afternoon here
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| 08:10 | se6astian | Geordie, do you see the private message window with your IRC client?
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| 11:45 | troy_s | R3D is _not_ a good "base".
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| 11:45 | troy_s | Alexa sure. F55. Even the F65 is a slightly odd monster.
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| 13:12 | Bertl | morning everyone!
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| 14:14 | Bertl | wb gcolburn!
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| 14:17 | se6astian | good morning :)
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| 14:19 | se6astian | time to leave the office :)
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| 14:19 | se6astian | see you
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| 15:53 | gcolburn | hello
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| 15:54 | se6astian | hi gabe
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| 15:55 | gcolburn | how's it going?
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| 15:55 | se6astian | good good
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| 15:56 | se6astian | Herbert created a histogram c program to run on the camera
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| 15:56 | se6astian | so I can now visualize realtime histogram data
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| 15:57 | gcolburn | oh wow, so are you streaming to HDMI and the histogram is overlaid?
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| 16:00 | se6astian | no
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| 16:01 | se6astian | its a commandline up that outputs 4x 4096 values
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| 16:01 | se6astian | *commandline tool
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| 16:03 | gcolburn | oh ok
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| 16:05 | gcolburn | so adjusting the black sun protection seemed to make a large difference in the FPN?
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| 16:13 | gcolburn | just lost connection. I probably missed anything you said (if you did)
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| 16:15 | se6astian | no I waited for your return
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| 16:16 | se6astian | the last black sun protection measurements were inconclusive
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| 16:16 | se6astian | I captured darkframes
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| 16:16 | gcolburn | ah okay
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| 16:16 | se6astian | capturing 2 frames in a row each
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| 16:17 | se6astian | then subtracted one from the other (abs(a-b))
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| 16:17 | se6astian | no matter how I set the black sun protection the results were always almost entirely black ( no noise)
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| 16:17 | se6astian | I need to continue testing with normal scene image content
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| 16:18 | gcolburn | when we do subtractions we need to make sure there is some sort of offset
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| 16:18 | gcolburn | otherwise half the data might be missing
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| 16:18 | gcolburn | if its truncated to zero
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| 16:19 | se6astian | yes, thats why it uses abs()
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| 16:20 | se6astian | in image magick its actually called "difference" composite mode
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| 16:20 | gcolburn | but the results are allowed to be negative before abs() correct?
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| 16:20 | gcolburn | okay. i haven't used image magick in a long time.
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| 16:21 | gcolburn | by the way, the KAC-12040 data sheet has great definitions of how they measure every type of noise
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| 16:21 | gcolburn | its on page. 19 under "Test Definitions"
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| 16:30 | se6astian | I assume it allows negative results but moves them above 0
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| 16:30 | se6astian | ah interesting
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| 16:30 | se6astian | will check it out soon
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| 16:34 | Bertl | I did analyze the image data se6astian captured the last few days, and there are a few findings
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| 16:35 | Bertl | first, we can clearly identify temporal noise caused by sensel waiting for readout
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| 16:35 | Bertl | second, we have some power? issues with continous image acquisition
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| 16:36 | Bertl | or at least there was some offset caused by the readout which shouldn't happen and doesn't happen in the last image
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| 16:37 | gcolburn | interesting
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| 16:38 | Bertl | we also can identify static row/column noise and differentiate it from dynamic row noise which looks exactly like the one described in AN01
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| 16:46 | gcolburn | what's AN01?
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| 16:46 | mars_ | application note I think
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| 16:47 | gcolburn | oh ok
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| 16:48 | gcolburn | Berl: Have you had a chance to look at the LUT code I wrote and see if it'll work for your needs?
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| 16:48 | Bertl | no, sorry, didn't have much time yet
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| 16:49 | gcolburn | no worries. its very close to the form you emailed me, so I think it should work
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| 16:56 | se6astian | bbs
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