| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "I have tried several times to adjust the histogram of bad infrared photos. It has always failed and I don't know why. I assume it is because the ad..." | Read more » | almost 7 years ago | |||
| warren | "Hmm, could we manually multiply the blue channel by 2 or 3 to do a "post-processed white balance"? Of course this would need to be calibrated, but ..." | Read more » | almost 7 years ago | |||
| cfastie | "A single camera NDVI system with a red filter should produce a photo with very turquoise foliage. The blue channel (NIR) should be much brighter th..." | Read more » | almost 7 years ago | |||
| warren | "Incandescent white balance seems to work all right! But wait, here it is in NDVI using http://infragram.org -- black is zero NDVI, white is 1.0: ..." | Read more » | almost 7 years ago | |||
| warren | "@amanda and I did a take apart session and this is pretty easy to do with a good pair of pliers -- wire strippers worked well! " | Read more » | almost 7 years ago | |||
| warren | "Does anyone have some more photos of this conversion process we could show here, more step-by-step? " | Read more » | about 7 years ago | |||
| cfastie | "The new filter can be inside the camera or in front of the lens. If it is in front, it will get scratched and might be bent (not flat), but it is e..." | Read more » | about 7 years ago | |||
| rrstrauss | "@azaelb There's something I don't really get. Basically what we need to do is to remove the ir cutter from inside the camara and place the red filt..." | Read more » | about 7 years ago | |||
| pazb | "@warren here it is https://publiclab.org/notes/pazb/09-12-2017/hand-crank-powered-flashlights " | Read more » | about 7 years ago | |||
| pazb | "@warren hehe no, I'm the worst. It's been in my todo list for the last 5 days... But I've got a window now and I'll upload it. Pressure does help ;) " | Read more » | about 7 years ago | |||
| warren | "Hi, Paz - sorry if I missed it but was there any documentation of your crankable flashlight workshop on the site yet? i wanted to share it with som..." | Read more » | about 7 years ago | |||
| BettyeGagner | "The differential reflection in the red and infrared (IR) bands enables you to monitor density and intensity of green vegetation growth using the sp..." | Read more » | about 7 years ago | |||
| liz | "Lovely video! I added some formatting on this note. " | Read more » | about 7 years ago | |||
| pazb | "Hey @stevie, @liz, @Zengirl2, thanks for your commenting and the tips :) Will get back to you soon, with more updates. But in the meantime just to ..." | Read more » | about 7 years ago | |||
| zengirl2 | "@pazb I'm also interested in introducing a community to the balloons for aerial photography. In planning my workshop I believe I will ask my people..." | Read more » | about 7 years ago | |||
| liz | "Hi @pazb !!! >> this is so clever "'flones' (drones called 'flying phones': flone.cc)" Looking forward to hearing more and i echo @stevie's c..." | Read more » | over 7 years ago | |||
| stevie | "So exciting! Yes lots of mapping resources here. Also if you have specific questions you can use the www.publiclab.org/questions forum. Can't wait ..." | Read more » | over 7 years ago | |||
| warren | "Also see this page collecting cheap cameras of this type: https://publiclab.org/questions/warren/05-20-2017/cheap-lightweight-gopro-alternatives-fo..." | Read more » | over 7 years ago | |||
| warren | "These or similar cameras are as low as $40 now! https://www.amazon.com/gp/aw/d/B01DG9UMS6/ref=mp_s_a_1_2?ie=UTF8&qid=1497436247&sr=8-2&..." | Read more » | over 7 years ago | |||
| dbehr | "Thx. @cfastie " | Read more » | over 7 years ago | |||
| cfastie | "Trying slightly different values could yield better results in some situations. CLF_SYSCFG.TXT " | Read more » | over 7 years ago | |||
| dbehr | "Hi, I have Mobius Infragarm cam for NDVI. I can't locate the White Balance settings for the mSetup program. Can you pls. give the values or a link..." | Read more » | over 7 years ago | |||
| suman | "i want to buy DYI plant health analyzer filter......i tried to buy from public labs but it's already out of stock. How can i possibly buy it for in..." | Read more » | almost 8 years ago | |||
| azaelb | "Thanks warren, I got these cameras from Amazon, vendor digital_family, product ASIN B01FLVPZNY. It is now under $60. On pictures I just had some pi..." | Read more » | almost 8 years ago |