| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Correcting the diffraction pattern was done this way: marquee select lines and translate them left and right? This was done in the Photoshop file..." | Read more » | about 9 years ago | |||
| warren | "I see that the 14 peaks you've chosen are sourced from the NIST data, not the Wikipedia/Ocean Optics data. OK, one last issue -- for intensities o..." | Read more » | about 9 years ago | |||
| warren | "Also, I'm not clear what Hg II means -- an ion? Would we only be seeing Hg I, or would we see both? I'm wondering about the Hg I line at 546.0750nm..." | Read more » | about 9 years ago | |||
| warren | "OK, I've filtered out the highest NIST peaks, and exported them in plain text. But these are in a vacuum, and for example, the 436.6nm line in the ..." | Read more » | about 9 years ago | |||
| warren | "Oh, and is the 14CFLpeaks.txt from the Wikipedia reference? If so, it says: Spectrum with peaks labelled taken with an Ocean Optics HR2000 spectro..." | Read more » | about 9 years ago | |||
| warren | "OK, so we have two different needs: First, a list of known spectral peaks: from some known trusted maybe an external source, like NIST? we only ..." | Read more » | about 9 years ago | |||
| cfastie | "I did a check on the files I attached to the last comment and they are not as precise as I thought they would be. A graph of the data file of int..." | Read more » | about 9 years ago | |||
| cfastie | "Here is a text file with the 14 peaks I used to calibrate the CFL spectrum (in nm): 14CFLpeaks.txt Here is a csv file of the intensity at each wa..." | Read more » | about 9 years ago | |||
| warren | "Oh, sorry, to be clear, i just need the wavelength values. " | Read more » | about 9 years ago | |||
| warren | "Hi Chris, for the upcoming "root mean square error" calibration "fitness" test, I want to sample not every single point, but all the peaks and trou..." | Read more » | about 9 years ago | |||
| warren | "Thanks, Chris, for the encouraging feedback. A lot of thought went into this, and although in the first version you stretched your spectrum, it was..." | Read more » | about 9 years ago | |||
| cfastie | "That's a wonderful interface. I calibrated many times because it was fun to do. The interface choices you made work really well, but you might be ..." | Read more » | about 9 years ago | |||
| CHUMBA | "Hello @cfastie, thanks for your opinion it really help us out. We are so new on this issue, as I commented you on other talk we just broke a camera..." | Read more » | about 9 years ago | |||
| cfastie | "Hi CHUMBA, It looks like the Rosco 116 is a very good filter for NDVI. Compared to the 2007, it passes less red, has a steeper cutoff between red ..." | Read more » | about 9 years ago | |||
| CHUMBA | "Hi I have been testing with one particular filter wich is the 116 Medium Blue Gree, because the 2007 was not available for sale at the moment. I am..." | Read more » | about 9 years ago | |||
| nshapiro | "@mathew yes. yes yes yes yes. " | Read more » | over 9 years ago | |||
| mathew | "studio shots " | Read more » | over 9 years ago | |||
| H3nkt | "Hello @mathew, First of al thank you for writing. If you increase the flow pulses will be schorter. But the amplitude of the pulse should be the ..." | Read more » | over 9 years ago | |||
| hank | ""Kids, don't try this at home" (without eye protection ...) " | Read more » | over 9 years ago | |||
| nedhorning | "The image for this note with the blue color was probably a JPEG image white balanced using red paper. The raw image will have much higher values in..." | Read more » | over 9 years ago | |||
| agustin_castellano | "Thanks Ned. I have a red filter (600nm) and the filter color is red and the pictures that i take with this filter are red why you have a similar fi..." | Read more » | over 9 years ago | |||
| eustatic | "you are the boss. Awesome. I have some GCM field sampling notes, and those forms echo what David Mack just typed. Although i suppose weather isn..." | Read more » | over 9 years ago | |||
| nedhorning | "Hi Agustin - I have a feeling the problem with with the calibration targets you are using. The targets I sued for this note were scanned by a labor..." | Read more » | over 9 years ago | |||
| agustin_castellano | "Hi Ned me again, could be that the analisys that you did it was over the image without the red filter? because when i read the article i understand..." | Read more » | over 9 years ago |