# ngb ngb

Author Comment Last activity Moderation
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 "other areas (not foliage) showed values between 0.2 and 0.9 and I don't know why, since there is no photosynthesis occuring there. Getting high ND..." | Read more » over 8 years ago
warren "Maybe we should call our version of NDVI "INDVI" for Infragram-NDVI or something? Or BNDVI for Blue-NDVI? I'm loathe to make an already obscure acr..." | Read more » almost 11 years ago
cfastie "kykytos, you are correct. The equation (NIR-R)/(NIR+R) is the standard one for NDVI. Substituting blue for red as in (NIR-B)/(NIR+B) also works wel..." | Read more » almost 11 years ago
kykytos "A pair of doubts: In the equation in the image, it should say (IR-B)/(IR+B) (like in the video) instead of (IR-R)/(IR+R), Shouldn't it? Is the (IR-..." | Read more » almost 11 years ago
warren "Haha, lots of fun stuff is possible. Try JavaScript math functions: R:Math.pow(R,2) G:Math.pow(G,2) B:Math.pow(B,2) I'm making a docs page here: h..." | Read more » almost 11 years ago
cfastie "Huge Breakthrough! We love sliders! Here is NBG of an astroturf putting green (R*S, B*1.3, G*0.1, WHEN S=100): And here is ENDVI = ((R+G)-..." | Read more » almost 11 years ago
donblair "(... and in case the resultant HTML is at all useful, it's here: https://github.com/Pioneer-Valley-Open-Science/infragram-js ) " | Read more » almost 11 years ago
donblair "I've got your code working locally, and it's gorgeous. Just to play around, I tried adding in some of your video instructions as explanation on th..." | Read more » almost 11 years ago
donblair "HOLY COW. " | Read more » almost 11 years ago