infrared
infrared


Author Comment Last activity Moderation
cfastie "Brendan, That's good news. A Rosco 2007 filter was somehow attached to the lens of the RPi camera. That filter passes blue and NIR light but not mu..." | Read more » almost 4 years ago
brendan_stanford "@cfastie Hi Chris, Thank you so much for taking the time to consider my problem! I'm afraid I am a relative NDVI neophyte and therefore I do not ..." | Read more » almost 4 years ago
cfastie "This is a great question. I don’t have much information about how these photos were made, but I will make some assumptions. I assume the Pi NoIR ca..." | Read more » almost 4 years ago
umberto_rootman "I posted a lot of findings about many other filters today, with sample pictures. I got my sample book of 200 filters (of which are ca. 80 of some u..." | Read more » almost 4 years ago
liz "@cfastie i'm wondering if you might advise on this... " | Read more » almost 4 years ago
liz "Super, just modified title to "Use 3-D glasses to modify a camera for infrared" -- this will help people understand what content is here when they ..." | Read more » almost 4 years ago
umberto_rootman "All pictures have undergone 'auto levels'. This particular camera does not have to be white balanced. For many cameras, one has to white balance wi..." | Read more » almost 4 years ago
umberto_rootman " Another great source for infrared color photos: a Roscolux sample book of 200 filters, of which at least 50 - 80 filters are useful. https://us...." | Read more » almost 4 years ago
umberto_rootman "Excellent! On Wed, May 20, 2020 at 5:55 PM \<notifications@publiclab.org> wrote: Hi! There's been a response to your research note 'Cheap s..." | Read more » almost 4 years ago
liz "What would you say to the idea of changing the title of this post to "use 3-D glasses to modify a sport cam for infrared" ? " | Read more » almost 4 years ago
brendan_stanford "The Raspberry Pi is housed in an aluminum enclosure, but the camera points out an airlock porthole on the International Space Station; I am unsure ..." | Read more » almost 4 years ago
mimiss "May I ask what material your camera is housed in? Some materials have very high NDVI values, and it looks like this material is so high in comparis..." | Read more » almost 4 years ago
umberto_rootman "In the glare in the wind mill pic, left above, is a small spectrum visible, which illustrates which wavelengths are blocked by the filter: there is..." | Read more » almost 4 years ago
liz "Thank you! Great pic of the glasses cut up! " | Read more » almost 4 years ago
umberto_rootman "As stated, the cyan filter was cut out from 3-D glasses " | Read more » almost 4 years ago
sam14 "Great, thanks Liz! " | Read more » almost 4 years ago
liz "Thanks for sharing this! Very cool. I don't think i've seen anyone discussing a cyan filter before, can you share a link to what you're using? " | Read more » almost 4 years ago
ltata5613 "Hello, same with me. I hope someone else can answer this. endralia " | Read more » almost 4 years ago
umberto_rootman "The great thing about using the cyan or blue filter with a modded sports cam is the ability to record images or video without having to resort to c..." | Read more » almost 4 years ago
umberto_rootman "I often use an orange-red filter, handheld in from of the camera, from a scrapped enlarger. I do a white balance with the eye dropper tool in PS, G..." | Read more » almost 4 years ago
liz "Hi @Sam14, Image Sequencer has experimental support for processing gifs: https://github.com/publiclab/image-sequencer#experimental-gif-processing-s..." | Read more » almost 4 years ago
warren "Hi! It could be interesting to try measuring the berries themselves as well; check out the spectrometer work by this group for a reference! #webval..." | Read more » about 4 years ago
cfastie "If photos are taken of plants in two treatments (top and bottom) with the same camera settings (all manual control) under the exact same lighting c..." | Read more » about 4 years ago
M0nk3y "Hi there, i did'nt wanted to re-do a topic that would have been really similar as this one. I hope i will be enough precise to get an answer to my ..." | Read more » about 4 years ago