infrablue
infrablue


Author Comment Last activity Moderation
MegaFlare252 "Is that something that could be corrected with a specific filter or an inherent issue with the quality of the camera? " | Read more » about 11 years ago
warren "Well, definitely WB is an element, but what seems to be the big thing is that on these cheaper cameras (with the exception of the one Stewart teste..." | Read more » about 11 years ago
MegaFlare252 "Perhaps the exposure settings play a big part as well. Brenden at flightriot.com and myself (mostly him) have been experimenting with different ca..." | Read more » about 11 years ago
warren "Yeah, that guy's been on the infrared mailing list a lot recently (http://publiclab.org/wiki/mailing-lists) and it's great to see his results. Stil..." | Read more » about 11 years ago
MegaFlare252 "From what I understand (which is not much, I'm pretty new to this) and have found online is that for some reason, CMOS cameras produce results that..." | Read more » about 11 years ago
lemmiwinks "Is there any thought or possibility to make this camera active rather than passive? " | Read more » about 11 years ago
cfastie "I played with this image quite a bit, and could get very little plant health information from it. You recognized one of the problems -- there is no..." | Read more » about 11 years ago
cfastie "In case others are interested in the answer to this question: The histograms of the infrablue photos are screen captures from Photoshop pasted ont..." | Read more » about 11 years ago
warren "The idea of using green for visible light isn't nearly as good as blue or red... but Chris is right, the green channel doesn't seem to leak as much..." | Read more » about 11 years ago
warren "Re: option 3, i was half-heartedly thinking of making a second Bayer filter by photographing a checkerboard on film and printing lots of negatives,..." | Read more » about 11 years ago
cfastie "I think your analysis is good. NIR is passing through all three Bayer filters (even the green channel has light foliage). So there is not a very go..." | Read more » about 11 years ago
cfastie ""Tweaking things until the histogram looks right," and especially "tweaking things until the NDVI looks right," are exactly the approaches that mus..." | Read more » about 11 years ago
warren "I wonder if thinking about "tweaking things until the histogram looks right" is the right approach -- in some ways, the idealization is that there ..." | Read more » about 11 years ago
mathew "kykytos-- I put Chris out of the filter business . If you are interested in helping us do research on filters, please e-mail me. mathew at publiclab " | Read more » about 11 years ago
cfastie "kykytos, Sorry, I am out of the business of mailing #2007 filter. We are currently testing several different filters with different cameras to choo..." | Read more » about 11 years ago
kykytos "I'd like some of the Rosco filter too. Thanks! " | Read more » about 11 years ago
cfastie "I think NDVI videos have the potential to be effective instructional vehicles and possibly important scientific records. The Kickstarter Infragram ..." | Read more » about 11 years ago
nedhorning "Is there any interest in a video processing option in the ImageJ/Fiji plugin? " | Read more » about 11 years ago
cfastie "I got a message a few weeks ago that I had more than 200 photos at Flickr and could access only the most recent 200 with a free account. I think th..." | Read more » about 11 years ago
liz "How about we tag photos on flickr with "Infragram"? " | Read more » about 11 years ago
warren "gorgeous!! " | Read more » about 11 years ago
PlanetenPaultje "When I went to school in 1969 (something) the physics classroom was equipped with a big slide lantern that was installed by Siemens in 1925. It got..." | Read more » about 11 years ago
cfastie "Brother Will, who sent me the lantern slides, asked a good question today: What is a lantern slide? I guess I should have assumed that many folks b..." | Read more » about 11 years ago
patcoyle "Chris, what a thoughtful and informative piece. Delightful that you also had the R. W. Wood, infrared photographs show up in your mail box. " | Read more » about 11 years ago