| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Probably! Can you point me at a MODIS source with bands youre interested in? " | Read more » | over 6 years ago | |||
| eustatic | "hunh, can you do this with MODIS? " | Read more » | over 6 years ago | |||
| ccpandhare | "@warren wow this looks very promising!! :-D " | Read more » | over 6 years ago | |||
| jbreen | "@warren I think you may have stumped me. Have you looked at GloVis? glovis.usgs.gov " | Read more » | over 6 years ago | |||
| warren | "@wward1400 @adam-griffith @MicheleTobias @lprashad @eustatic @nedhorning @cfastie you might like this little experiment too! " | Read more » | over 6 years ago | |||
| warren | "@ccpandhare @tech4gt exciting! @jbreen - you'd know this... are there any tiles available for LANDSAT's near-infrared bands? Especially like NGB t..." | Read more » | over 6 years ago | |||
| warren | "Also could be interesting to @maggpi -- check it out! " | Read more » | over 6 years ago | |||
| sjmanosalvas | "@carolccarvalho please your help, I trying to do a similar project for school, but I'm new with MATLAB program, Could you send your codes to implem..." | Read more » | over 6 years ago | |||
| cfastie | "There is no information at the Public Lab store about what filter is used except that it is a red filter. I suspect the filter is a Rosco `#19 filt..." | Read more » | over 6 years ago | |||
| cfastie | "Blueish photos result when the blue channel is brighter than the other channels. Reddish or orangeish photos result when the red channel is brighte..." | Read more » | over 6 years ago | |||
| cfastie | "The blue filters used block red light, so the red channel records a lot of NIR, so NGB. The red filters used block blue light, so the blue channel ..." | Read more » | over 6 years ago | |||
| RexToother | "Sorry, I thought that was going to be posted directly to the product page. Here is the link to it: https://publiclab.myshopify.com/products/infragr..." | Read more » | over 6 years ago | |||
| warren | "Hi, just curious which lens you're referring to? Thanks! " | 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 | |||
| amirberAgain | "Si-based cameras (as the ones used in smartphones) have a very low sensitivity over 950nm and virtually none over 1000nm, so it is very unlikely. I..." | Read more » | almost 7 years ago | |||
| cfastie | "Oh, you're right. The older lut used in the images above can be found here: https://publiclab.org/wiki/photo-monitoring-plugin " | Read more » | about 7 years ago | |||
| plnedestroyer | "the file in that one shows a different Lut than the one you are using in these images " | Read more » | about 7 years ago | |||
| cfastie | "The lut file for use in Fiji is available for download here: https://publiclab.org/notes/cfastie/08-26-2014/new-ndvi-colormap In a comment to that..." | Read more » | about 7 years ago |