| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| ArtistMonkey83 | "I wanted to know if B2 is == 435.83 and if G2 is == 546.07 nanometers. I am also interested in knowing how these values where chosen. I looked up s..." | Read more » | over 5 years ago | |||
| ArtistMonkey83 | "The github link is no longer active. " | Read more » | over 5 years ago | |||
| ArtistMonkey83 | "This link is no longer active. " | Read more » | over 5 years ago | |||
| cfastie | "Correction: When I calibrate Corrected Snowy CFL (with itself), I can get a Fit as good as 5. But the two spectral images are not well aligned when..." | Read more » | almost 9 years ago | |||
| cfastie | "Ah, set as in SW set! Here is one with CFL spectra from you, me, stoft, and spectra4cps: https://spectralworkbench.org/sets/3165. All of these sho..." | Read more » | almost 9 years ago | |||
| warren | "Oh, just the spectra you're looking at to reach those conclusions. Sorry to mix vocab :-) " | Read more » | almost 9 years ago | |||
| cfastie | "What do you mean by references? " | Read more » | almost 9 years ago | |||
| warren | "Could you make a set of good double green line references to look at? " | Read more » | almost 9 years ago | |||
| warren | "There are a few places where we do math -- like convert from 0-255 to 0.000-1.000, and when repeated over many pixels, its possible that there are ..." | Read more » | almost 9 years ago | |||
| cfastie | "Jeff, I made a corrected (ideal) version of the Snowy Sky CFL spectral image when we were working through this in October. This is the basis for t..." | Read more » | almost 9 years ago | |||
| warren | "Hi, Chris - because we used lots of peaks to determine "fitness", we'd need all of the following nanometer positions plus their intensity (0-255): ..." | Read more » | almost 9 years ago | |||
| cfastie | "Jeff, are these the specs for the image you need for the reference spectrum: 1390 px wide with the blue 436 peak at 211 pixels from left, and the g..." | Read more » | almost 9 years ago | |||
| liz | "Great detective work @warren and @cfastie! " | Read more » | almost 9 years ago | |||
| warren | "Well, both images were taken from the same device within about 20 minutes, so you can check their images against one another even if they're not ac..." | Read more » | almost 9 years ago | |||
| cfastie | "That's some excellent detective work. We know there is mercury in all fluorescent lamps, so all the big mercury peaks should be present in all good..." | Read more » | almost 9 years ago | |||
| warren | "I added an update about suitability of long-tube fluorescent bulbs (non CFLs) for calibration which should be interesting to @liz and maybe @cfasti..." | Read more » | almost 9 years ago |