| 23:55 | Bertl_oO | off for a nap ... bbl
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| 03:16 | troy_s | IT IS BLUE AND BLACK
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| 05:13 | Bertl | morning folks!
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| 06:52 | cbohnens | good morning
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| 07:02 | se6astian | good morning
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| 13:33 | Francky_ | hi everybody
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| 13:38 | Bertl | hey Francky_!
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| 13:40 | Francky_ | i'm back
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| 13:40 | Francky_ | :)
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| 13:45 | Bertl | wb Francky_!
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| 13:52 | Francky_ | Bertl : where do you tell to the builder thant you want to connect a signal (for example cmv_lvds_ctrl_p) to a pin ? Is it the xdc file ?
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| 13:59 | Bertl | yes, the xdc files specify all in/out connections
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| 14:01 | Bertl | i.e. everything external to the FPGA is specified there
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| 14:04 | Francky_ | I don't know why i thought that it were simulation files...
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| 14:04 | Francky_ | thanks
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| 14:04 | Bertl | the "builder" btw, is Vivado
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| 14:42 | Bertl | off for a nap ... bbl
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| 15:07 | se6astian | time to leave the office
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| 17:46 | lab-bot | sebastian created T299: Document first two meeting notes from google doc to WIKI pages. http://lab.apertus.org/T299
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| 20:05 | troy_s | MatthiasF: Greets.
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| 20:08 | MatthiasF | troy_s: Hi
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| 20:17 | MatthiasF | troy_s: What are you up to ?
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| 20:17 | troy_s | MatthiasF: Bertl_zZ is the peep to ping.
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| 20:17 | troy_s | MatthiasF: Was about to head out.
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| 20:17 | MatthiasF | I pinged se6astian|away and he uploaded some dark frames
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| 20:17 | troy_s | Bertl_zZ: Meet MatthiasF, a signal processor extrodinaire. Probably a great head to have around if he does.
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| 20:18 | troy_s | MatthiasF: Well that's great.
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| 20:18 | troy_s | MatthiasF: I suspect dark frames will only take the photosite noise so far
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| 20:18 | MatthiasF | He uploaded there -> http://files.apertus.org/AXIOM-Alpha/
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| 20:19 | MatthiasF | It will at least take the bias out
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| 20:19 | troy_s | MatthiasF: I'm reasonably sure that Argyll takes the image and inversely rolls it to get the estimated whites.
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| 20:19 | troy_s | (As in it knows the target white, so it inversely rolls it to align the whites to the estimated.)
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| 20:20 | MatthiasF | Well, my whites are white enough with the direct calibration for now
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| 20:21 | MatthiasF | Noise is really the issue right now, especially since I want a clean signal for demosaicking
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| 20:21 | MatthiasF | I would also need blank frames to compensate photo response (gain) non uniformity
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| 20:23 | MatthiasF | Right now, I'm parsing the metadata block in my framework to get the dark frames exposure times. So I can use those dark frames for the IT8 exposure.
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| 20:24 | troy_s | MatthiasF: There was a more ideal 5000k shot somewhere in that test batch of shots.
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| 20:24 | troy_s | MatthiasF: Still had errors, but a 3D LUT with some curves pulled the dE down to 4.0 or so.
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| 20:24 | MatthiasF | Ok, but which one ?
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| 20:25 | troy_s | MatthiasF: (Where 1.0 dE is a Just Noticeable Difference (JND)
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| 20:26 | troy_s | MatthiasF: Try one of the scene_daylights
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| 20:27 | troy_s | MatthiasF: The scene_halogens also have a better selection of exposures
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| 20:27 | troy_s | MatthiasF: But of course, then you are dealing with the white color estimation again, albeit from a source that is likely relatively reliable.
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| 20:29 | troy_s | MatthiasF: I can't recall if Herb made the PNGs using the linearized data or not. IT8s are damn fussy, and most are underexposed when shot. You want the chart that is exposed heavily, without heading into the batshit crazy part of the sensor.
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| 20:30 | MatthiasF | the PNG I have seen so far are the raw RGB
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| 20:31 | troy_s | Right. So hard to judge the exposure from the PNGs.
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| 20:31 | troy_s | Argyll will spit out til files etc that are great to analyse.
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| 20:31 | MatthiasF | I guess I will just download all raws and review them with my tool
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| 20:32 | troy_s | I can't help on the signal stuffs obviously. Only the color stuffs.
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| 20:33 | MatthiasF | FTP access would be easier to batch download those files :/
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| 20:35 | troy_s | bah wget
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| 20:37 | MatthiasF | I like to avoid wasting time with the command line ;)
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| 22:39 | Bertl_zZ | changed nick to: Bertl
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| 22:39 | Bertl | back now ...
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| 22:40 | Bertl | troy_s: funny guy, must me relatively young - doesn't realize that ftp comes from the command line .... anyway, for the record, using a proper "ftp" client like lftp works too :)
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| 22:40 | Bertl | s/me/be/
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| 22:41 | troy_s | Bertl: he was being melodramatic
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| 22:41 | troy_s | Working on his PhD math and signals.
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| 22:41 | troy_s | ;)
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| 22:42 | troy_s | Ridiculously brillint peep
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| 22:42 | Bertl | hehe, sounds good
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| 22:42 | comradekingu | i read meth and signals
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| 22:42 | Bertl | crystal clear?
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| 22:42 | troy_s | Meth PhD too
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| 22:43 | comradekingu | must go to sleep, going to barcelona tomorrow :)
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| 22:46 | Bertl | barcelona sounds fun
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| 22:48 | troy_s | Spent a month and a bit in Valencia
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