compositing
compositing


Author Comment Last activity Moderation
RQ-05 "I will get a few more images for you to look at. It seems with this type of plant, that the HSV really jumps out at the true NIR reflectance. I am ..." | Read more » about 9 years ago
warren "HSV is kind of a shortcut to actually making a LUT, but they're not exactly the same thing. As I mentioned in my comment on your post today, HSV ha..." | Read more » about 9 years ago
warren "These are some good questions. We started to abandon basic HSV because it "wraps around" -- high values and low values are both "red" -- but if you..." | Read more » about 9 years ago
RQ-05 "Is it possible to put a LUTs for the HDV? I did a few images that came out great using the HDV, and I would like to put a scale on them. Maybe I mi..." | Read more » about 9 years ago
mathew "I was having trouble getting the white balance settings to load. figured it out from a manual editing page on RC groups: http://www.rcgroups.com/fo..." | Read more » about 10 years ago
cfastie "Thanks, download works! Mathew, The white balance settings for both of your Mobius shots at infragram.org are 288, 256, 432. That suggests the came..." | Read more » about 10 years ago
warren "Added! " | Read more » about 10 years ago
warren "Ah, good call. There are a zillion features we need to add to Infragram, but I think i can add that one reasonably fast. Let me try. " | Read more » about 10 years ago
cfastie "I couldn't find a way to download Mathew's original Infragram from Infragram.org. Is there a way? All I could get was the result image. " | Read more » about 10 years ago
mathew "sure image is here. " | Read more » about 10 years ago
warren "Yeah that doesn't look like it's working at all -- can you link to your Infragrammar.org image so I can try to debug? " | Read more » about 10 years ago
mathew "This formula doesn't produce anything like NDVI for me. I always get an image that looks the same as unprocessed, with some artifacting. " | Read more » about 10 years ago
warren "As i pointed out in the comments here yesterday, this HSV approach is pretty interesting and conceptually fun, but not ideal for real work with LUT..." | Read more » over 10 years ago
mathew "This isn't working for me either. I get a red or blue image, but not a NDVI-style color map. " | Read more » over 10 years ago
cfastie "The infrablue photos from the camera for this scene is here: http://publiclab.org/notes/warren/05-27-2013/infragram-test-photos-from-a-plane-window " | Read more » almost 11 years ago
bc512 "I would love to see the raw image of this if possible? what setup are you using etc? thank you " | Read more » almost 11 years ago
warren "Is this when you press the "run" button? Can you post which version of Chrome and which OS, and which expression you were using in Infragrammar? Ho..." | Read more » almost 11 years ago
bc512 "Unfotunately this isnt working for me, it just fails and the chrome page does the "oh snap" thing :( " | Read more » almost 11 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