| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| 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 » | about 6 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 » | about 6 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 » | about 6 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 » | about 6 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 » | about 6 years ago | |||
| warren | "Lens separation on cheaper GoPro clones seems very easy! https://publiclab.org/notes/azaelb/12-04-2016/conversion-of-4k-sport-camera-for-ndvi-anal..." | Read more » | about 6 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 » | about 6 years ago | |||
| warren | "Does anyone have some more photos of this conversion process we could show here, more step-by-step? " | Read more » | over 6 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 » | over 6 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 » | over 6 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 » | almost 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 » | almost 7 years ago | |||
| dbehr | "Thx. @cfastie " | Read more » | about 7 years ago | |||
| cfastie | "Trying slightly different values could yield better results in some situations. CLF_SYSCFG.TXT " | Read more » | about 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 » | about 7 years ago | |||
| warren | "Hi, just wondering about my question on the screw in the photo below -- is that to unscrew the lens assembly itself? " | Read more » | about 7 years ago | |||
| suman | "There's no information about making GoPro first version to full spectrum in the internet...i have done a lot of research in the web and found nothi..." | Read more » | about 7 years ago | |||
| warren | "Can you show a picture of the front and back as well? I think i see a screw, but not sure... " | Read more » | about 7 years ago | |||
| warren | "Hmm, very hard to follow without images, huh? I wonder if there are any YouTube tutorials? " | Read more » | about 7 years ago | |||
| suman | "Found this on the DIYdrones forum :http://diydrones.com/forum/topics/go-pro-camera-near-ir?id=705844%3ATopic%3A767644&page=2#comments But stil..." | Read more » | over 7 years ago | |||
| suman | "Dear Warren, This is the first version of GoPro Hero HD without screen not Hero 2 (although it looks quite similar). Yeah the lens is fixed (no ..." | Read more » | over 7 years ago | |||
| warren | "Via @wildintellect on the plots-infrared discussion list: Replace the lens, there are several aftermarket GoPro lens made for IR. http://stuntcams..." | 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 » | over 7 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 » | over 7 years ago |