| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| ianrhiggins | "I just started experimenting with my own NDVI camera rig and your posts/plugin are great. I have a question about the NDVI formula for a single ca..." | Read more » | about 8 years ago | |||
| Claytonb | "@Gianni_Gadaleta - I never did get the chance to have the Komatex scanned so I haven't used it for target material. Becky Done with SABIC Polymersh..." | Read more » | about 8 years ago | |||
| Gianni_Gadaleta | "Good evening @AFairbairn , I read with great interest your post because even I and my group are having the same difficulties to develop good NDVI i..." | Read more » | about 8 years ago | |||
| mathew | "oh yes! please read our wiki on frac sand and PM, its getting pretty fleshed out: https://publiclab.org/wiki/frac-sand follow notes as they happen..." | Read more » | about 8 years ago | |||
| Caca_nkg | "Hi guys... Any success with the Phantom??? " | Read more » | about 8 years ago | |||
| sara | "Super excited to read about this project, are their more recent notes on how your project's progressing? " | Read more » | about 8 years ago | |||
| Claytonb | "@AFairbairn - I spent quite some time searching for reliable and cheap target material for calibrations. I spoke with someone who scanned Rustoleum..." | Read more » | about 8 years ago | |||
| cfastie | "Yes I have seen Valspar in the US for many years, and Rustoleum is a big brand here. Maybe there is some international brand of art supplies that m..." | Read more » | about 8 years ago | |||
| AFairbairn | "Good points. I am checking if my University has a spectrometer, I do not think my department does, however our geology people may have one. Waiting..." | Read more » | about 8 years ago | |||
| cfastie | "Any place that sells paint has paint color chips, but these are too small to be useful as targets. But fancy paint stores have huge color samples. ..." | Read more » | about 8 years ago | |||
| cfastie | "That's a really relevant article. They scale the graphs relative to a standard, so 100% is actually 20% reflectance. That means 25% reflectance of ..." | Read more » | about 8 years ago | |||
| AFairbairn | "Chris, You are probably correct about the foil being a poor material because of how shiny it is, had not really considered that. I came across thi..." | Read more » | about 8 years ago | |||
| cfastie | "ISO 100, 1/320 shutter speed That is much better than I thought would be possible. I don't know how those skinny little bands provide enough light..." | Read more » | about 8 years ago | |||
| AFairbairn | "Jut did a really crude test, the image displays as it should, green in the cracks, green algae or whatever it is on the fence. The small panel in f..." | Read more » | about 8 years ago | |||
| AFairbairn | "Chris, Thank you again for all the great information. I would assume the filter you found on PeauProductions website is the one in the lens I purch..." | Read more » | about 8 years ago | |||
| cfastie | "Ned listed some resources of spectral reflectance data of common things in this note: https://publiclab.org/notes/nedhorning/11-01-2013/why-a-red-f..." | Read more » | about 8 years ago | |||
| cfastie | "PeauProductions has this filter here: This must be a dichroic filter. The narrow bands could produce good results. We don't know how much cross ..." | Read more » | about 8 years ago | |||
| AFairbairn | "Chris, Thank you for your comments. I realize I should have provided a bit more information. Unfortunately a multispectral imager was not in my bu..." | Read more » | about 8 years ago | |||
| cfastie | "It would be good to know something about the camera and filter you are using. Do you have a spectral curve for the filter? How is the camera white ..." | Read more » | about 8 years ago | |||
| patcoyle | "Thanks Ned. I haven't used the tool lately, so haven't run into the problem. Appreciate all your work on this great capability. " | Read more » | over 8 years ago | |||
| DFlores6073 | "I use Fiji with the photomonitoring plugin...I would like to create a legend with the values, what would be AWSOME is to have the values on the ima..." | Read more » | over 8 years ago | |||
| jtuhtan | "Hi David, The code I used was MATLAB, overlaying an image of the Fastie colormap onto the NDVI image. What software are you working with? " | Read more » | over 8 years ago | |||
| DFlores6073 | "Jeff (Jtuhtan) could you please direct me to the right place so I can create a legend with values on my NDVI photos... Thank You David " | Read more » | over 8 years ago | |||
| nedhorning | "The current version of the plugin only outputs index (NDVI and DVI) images. The plugin only calibrates two bands, a visible and a NIR band and two ..." | Read more » | over 8 years ago |