| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| liz | "Hi Chris, Have you already written in detail exactly how to do white balancing (up close, or in context with landscape in background, or how?), and..." | Read more » | over 11 years ago | |||
| warren | "My best hypothesis right now is that it's related to the Bayer filter in the camera itself, so I'm hoping to order more different cameras and find ..." | Read more » | over 11 years ago | |||
| MegaFlare252 | "Is that something that could be corrected with a specific filter or an inherent issue with the quality of the camera? " | Read more » | over 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 » | over 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 » | over 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 » | over 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 » | over 11 years ago | |||
| cfastie | "djibi2, That would be a great test. Even better would be three cameras (RGB, NIR, infrablue). Most infrablue cameras do not capture as pure an infr..." | Read more » | over 11 years ago | |||
| lemmiwinks | "Is there any thought or possibility to make this camera active rather than passive? " | Read more » | over 11 years ago | |||
| John_Wells | "Hi Ned Thanks for the kind comments. It is good to see the work of PLOTS too ;o) One of my favourite projects is: http://tracesofthepastexhibition..." | Read more » | over 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 » | over 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 » | over 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 » | over 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 » | over 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 » | over 11 years ago | |||
| djibi2 | "If one of your cameras in the "two-camera" flight was using the Superblue filter couldn't you create NRG photos from that? Then you could do a dir..." | Read more » | over 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 » | over 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 » | over 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 » | over 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 » | over 11 years ago | |||
| kykytos | "I'd like some of the Rosco filter too. Thanks! " | Read more » | over 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 » | over 11 years ago | |||
| liz | "How about we tag photos on flickr with "Infragram"? " | Read more » | over 11 years ago | |||
| warren | "gorgeous!! " | Read more » | over 11 years ago |