I was just looking at an extremely flickering waterfall picture of a (already calibrated) CFL spectrum. I was wondering if the flickering only affected intensities or wavelengths, too. So I used the "SET NEW CROSS SECTION" button to use a different line number of the picture. As soon as I hit "APPLY" the spectrum lost its calibration and went back to "uncalibrated pixels". Do you have any idea why? Do I have to re-calibrate every time I use a different cross-section?
Lost in calibration...
by viechdokter
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April 13, 2016 14:43
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6 comments
| #12967
| 50 views
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6 comments
| #12967
13 Apr 14:43
Read more: i.publiclab.org/n/12967
That sounds great. Do you have a Github account? If so, could you add that to https://github.com/publiclab/spectral-workbench/issues/new ? If not, I can create the issue. It's a great idea.
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Okay, I just created an account and mentioned the issue there. I am not a good programmer, so I can't contribute any code, but I am a user and can tell others what I would like to "use"... ;-)
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Thanks, I put a few notes to coders in there to try to kick it off. For reference, we def. need help from everyone, coding skills aside -- take a look: https://publiclab.org/wiki/developers#Contributing+for+non-coders
Thanks!!!
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Thanx Warren,
it's kinda "scary" how nice and positive everyone here on the forum reacts to my musings/problems/requests... Almost looks like you all were just waiting for me to turn up... ;-) It's really great to be here.
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6 Comments
Yes, it doesnt make the assumption that all cross sections are equal because it doesn't know if you uploaded or live-waterfall-captured -- uploads may not preserve calibration over vertical variation.
That said, if you're interested we could open an issue to make it take a best guess if it's live captured, and not invalidate calibration if so? Or maybe prompt you and ask "does calibration still hold?" ...when doing the cross section.
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I like the latter approach ("does calibration still hold?") best. Otherwise you have to recalibrate each time for a new cross section which is a bit annoying. Perhaps that would be something for the next program update?
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