Comments

cfastie commented on Possible problem with DIY Infragram camera or infrapix : "Great to know a blue sky can produce a white balance setting with so much separation of the blue and red (NIR) channels. there is at least one othe..." | Read more » over 4 years ago
ceefoster commented on Possible problem with DIY Infragram camera or infrapix : "I pointed the camera at a very dark sky-blue sky, standing in the shade. It was a completely clear day, and I got the very orangey images as a resu..." | Read more » over 4 years ago
cfastie commented on Possible problem with DIY Infragram camera or infrapix : "Wow, you must have used something really blue to white balance. Please let us know how you did that. The Infragram is definitely orange. It looks l..." | Read more » over 4 years ago
ceefoster commented on Possible problem with DIY Infragram camera or infrapix : "OK, thanks for the tips. I adjusted the white balance so the images are more orangey. However, now the blue channel image generated does not look l..." | Read more » over 4 years ago
mathew commented on Stepped slit tests : "Object interference update: http://publiclab.org/notes/mathew/09-26-2013/telephone-poles-streetlights-at-sunset " | Read more » over 4 years ago
eustatic commented on Biohavens in Bonnabel --Kite Map of Wetlands Restoration 2nd October : "This will be re-scheduled " | Read more » over 4 years ago
mathew commented on Stepped slit tests : "Through a somewhat dirty window. Yeah, wierd, right? its so striated. " | Read more » over 4 years ago
warren commented on Stepped slit tests : "Whoa - how is that sky spectrum so varied? Was it pointed through a screen or something? " | Read more » over 4 years ago
mathew commented on Stepped slit tests : "I don't think diffusion gets the stepped result expected. Here is a spectra of a very overcast sky: https://spectralworkbench.org/spectra/embed/13..." | Read more » over 4 years ago
warren commented on Photo-printed collimation slit for the Backpack Spectrometer : "Super. I hope we can get the stepping to work, though most of all for the desktop kits -- imagine not doing any more lasercutting! And while some p..." | Read more » over 4 years ago
mathew commented on Photo-printed collimation slit for the Backpack Spectrometer : "Yes, the photoprinting gets excellent results. I'm consistently impressed by it, and the lack of internal reflection and aberrations that appear. ..." | Read more » over 4 years ago
cfastie commented on Eclectis: a week of civic science in Amsterdam North : "Infragram immersion helmets are the best thing ever. Imagine one with multiple cameras: one zoomed in, one with a different filter, two side facing..." | Read more » over 4 years ago
cfastie commented on Possible problem with DIY Infragram camera or infrapix : "Your results are really good now. I agree that they would probably improve if the images straight from the camera were a little more orangey. To ac..." | Read more » over 4 years ago
warren commented on Photo-printed collimation slit for the Backpack Spectrometer : "Hi, Mathew - just posted an update on the stepped slit tests here: http://publiclab.org/notes/warren/09-25-2013/stepped-slit-tests BTW, your links..." | Read more » over 4 years ago
ceefoster commented on Possible problem with DIY Infragram camera or infrapix : "Actually, based on your comment here: http://publiclab.org/notes/warren/08-15-2013/white-balancing-a-canon-camera-for-infragram-photography -- I th..." | Read more » over 4 years ago
ceefoster commented on Possible problem with DIY Infragram camera or infrapix : "Thanks! I'm definitely headed in the right direction -- I have more variation than before. However, I'd like to double check that my white balance ..." | Read more » over 4 years ago
cfastie commented on Possible problem with DIY Infragram camera or infrapix : "That's a good question. I updated the wiki page to make it clear that the white balance procedure should be done on an Infragram camera with the bl..." | Read more » over 4 years ago
ceefoster commented on Possible problem with DIY Infragram camera or infrapix : "Thanks. I'm looking into that now. Can I do this if the camera has already been hacked to take Infragrams? Do I need to take off the Rosco filter? ..." | Read more » over 4 years ago
cfastie commented on Possible problem with DIY Infragram camera or infrapix : "Okay. I think the A490 allows custom white balance. It will make a big difference to follow the procedure here and make your own custom white bal..." | Read more » almost 5 years ago
ceefoster commented on Possible problem with DIY Infragram camera or infrapix : "Thanks! I'm using a Canon PowerShot A490. I'm not sure about the custom white balance presets, but I can ask the person who worked on the camera. T..." | Read more » almost 5 years ago
cfastie commented on Possible problem with DIY Infragram camera or infrapix : "That is a good looking image. You are correct that this image paints everything with a narrow range of colors, which means that most of the NDVI va..." | Read more » almost 5 years ago
mathew commented on Reference: Coal leachate contaminants of concern to Washington Dept of Ecology : "I'd seen that article-- and the fairly questionable position of the Corps that their position on effected areas had 'evolved'. Thanks for followin..." | Read more » almost 5 years ago
commented on Attempt at Distance Spectrometery : "Spectrometery or scope adjust the distance. The wide range of Zeiss Scopes ensures that there is a scope that suits your preferences. http://www.ri..." | Read more » almost 5 years ago
sergsh commented on Open Source Linear CMOS Spectrometer : "We are interested in such sensors for scientific work in the coastal zone of the Sea of ‚Äč‚ÄčAzov. Can somebody suggest how you can buy these products..." | Read more » almost 5 years ago
svanderwaal commented on Kitemapping in the Netherlands : "I'm in Amsterdam next week 23/24 Sept if that could work? " | Read more » almost 5 years ago
Charlisaurio commented on Nungesser test: collection of Coal or Petroleum coke for further testing : "I look forward to seeing results! " | Read more » almost 5 years ago
Becki commented on Finding closest match spectra from the database (GSoC) - Final Post! : "Sreyanth--Thanks so much for all your hard work this summer. I think the end result is absolutely amazing! I'm glad to hear you got so much out of ..." | Read more » almost 5 years ago
Sreyanth commented on Finding closest match spectra from the database (GSoC) - Final Post! : "Thanks for your compliment :-) Glad you liked the new features. We came up with the present system assuming that the spectrums would be calibrated..." | Read more » almost 5 years ago
straylight commented on Finding closest match spectra from the database (GSoC) - Final Post! : "Sreyanth, awesome work, I love the interface and well done on following the project through to completion. It adds a lot to the functionality of sp..." | Read more » almost 5 years ago
Sreyanth commented on Finding Neon : "Thanks for such a nice post :-) I used overlapping averages to solve the x-shift problem and hence it actually averages the spectrum to a smoother..." | Read more » almost 5 years ago