| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| saberali0721 | "If you're a fan of hunting, the 8Xbet trò chơi săn mồi in Vietnam might be for you. This card game is a modern version of the traditional Vietnames..." | Read more » | about 2 years ago | |||
| warren | "I posted an activity for doing NDVI-like work using a camera like this -- with a coefficient (on the output of NDVI, so like "boosted" NDVI) here: ..." | Read more » | over 6 years ago | |||
| warren | "Ah! https://publiclab.org/notes/cfastie/08-20-2013/white-balance-recovery Flashback! " | Read more » | almost 7 years ago | |||
| warren | "I guess to evaluate how well the 2x blue boost I posted above worked, we'd have to compare it to a better system, right? If other folks take a phot..." | Read more » | almost 7 years ago | |||
| 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 | |||
| 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 | |||
| liz | "Hey Chris, you spotted me trying to re-post some fairly vintage content from the original balloon mapping page. I'll update this note -- which was ..." | Read more » | almost 8 years ago | |||
| dbehr | "Thx. @cfastie " | Read more » | almost 8 years ago | |||
| cfastie | "Trying slightly different values could yield better results in some situations. CLF_SYSCFG.TXT " | Read more » | almost 8 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 » | almost 8 years ago | |||
| cfastie | "I am a little confused about some of the suggestions here. I like the advice of using a camera with at least 10MP because it ensures that the came..." | Read more » | almost 8 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 » | about 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 » | about 8 years ago | |||
| warren | "Also do you have any pics you took with the camera to share? Raw and NDVI for comparison? Thank you!!! " | Read more » | about 8 years ago | |||
| warren | "Wow, amazing -- do you have a link to where you can buy this camera, and any data on how much it weighs? It could be a great alternative for people..." | Read more » | about 8 years ago |