question:general
question:general


Author Comment Last activity Moderation
edugil "Solved, ballons --> no wind, kites --> wind :) " | Read more » about 7 years ago
warren "Hi, what project or kit are you using? " | Read more » about 7 years ago
warren "Hi! The materials shipped in the mini balloon mapping kit are for prototyping -- there's not actually a finished "design" they're intended for, but..." | Read more » about 7 years ago
miguel46 "http://agron-www.agron.iastate.edu/~weeds/Ag317/manage/herbicide/dicamba.html " | Read more » about 7 years ago
cfastie "I have not compared to see if replacing the filter changes the lens distortion, but it probably does some. Adding an internal filter can have a sub..." | Read more » about 7 years ago
KushalKC "And should we be concerned regarding geometric calibration too? I don't think replacing a filter would add some distortion in the image. " | Read more » about 7 years ago
cfastie "Yes, any photo can be processed using the NDVI equation to get an NDVI image. My answer above explains why the resulting NDVI image might not be ve..." | Read more » about 7 years ago
warren "Also see this related question: https://publiclab.org/questions/shaikhgous/11-18-2016/identify-plastic-material-using-infrared-imaging " | Read more » about 7 years ago
KushalKC "If there are apps for it, could you please name one of them. " | Read more » about 7 years ago
KushalKC "But the Public Lab has other thing to say. This page https://publiclab.org/wiki/multispectral-imaging points out that the image once taken from mod..." | Read more » about 7 years ago
warren "Hi, at least a couple years ago, I looked into this and it seemed there are ways with a custom app, but only on some Android phones. I'm not sure i..." | Read more » about 7 years ago
anuj2017 "nail place near me coc supercell play dream league soccer online " | Read more » about 7 years ago
omarormachea "Ifyou want to measure the spectra of various light bulbs, you can visit this web page: http://www.upb.edu/en/contenido/smartphone-spectrometer Yo..." | Read more » about 7 years ago
Paquicamus "If you live in USA: www.epa.gov/ground-water-and-drinking-water If you lice in Australia:https://www.nhmrc.gov.au/guidelines-publications/eh52 Mo..." | Read more » about 7 years ago
cfastie "I don't know how much LEDs vary in their NIR emission. But it's easy to add some NIR LEDs to the mix. There is an advantage to using only artificia..." | Read more » about 7 years ago
Georgina "Thanks for this guidance! " | Read more » about 7 years ago
robotfarms "Thanks for the in depth answer Chris! If i needed to use this system in low light or night, do you think I would need to add NIR light, or is there..." | Read more » about 7 years ago
robotfarms "Thanks William, I was going to have a play with it in regular RGB color too, and find the best solution. I can have a play with all the variables t..." | Read more » about 7 years ago
cfastie "The NIR illumination is probably not needed because daylight is a very consistent source of lots of NIR (although using NIR illumination at night c..." | Read more » about 7 years ago
williampasco "Hola, yo creo que no va ha ser de ayuda, ya que todas las plantas pueden usar esa luz para hacer la fotosíntesis. He tratado de hacer una diferenci..." | Read more » about 7 years ago
stevie "Hi there, great question. Bringing an answer over from @thegreencommunitygarden that was sent out on the main list: "Try the local cooperative exte..." | Read more » about 7 years ago
SallyAbraham "I need the help of the article about concept when any composition must be written by me. The essay was written myself by me thanks to it. The locat..." | Read more » about 7 years ago
cfastie "There are a couple of reasons that the photos from a modified NIR camera will not produce useful NDVI results unless some adjustments are made: N..." | Read more » about 7 years ago
DavidMack "FEMA Journal has links to mapping: https://fema.maps.arcgis.com/apps/MapJournal/index.html?appid=97f53eb1c8724609ac6a0b1ae861f9b5 Specifically: C..." | Read more » about 7 years ago