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infragrammar
infragrammar

Learn more about Infragram Sandbox here: http://publiclab.org/wiki/infragram-sandbox...


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 » almost 7 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 » almost 7 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 » almost 7 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 » almost 7 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 8 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 8 years ago
warren "Added! " | Read more » about 8 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 8 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 8 years ago
mathew "sure image is here. " | Read more » about 8 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 8 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 8 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 » about 8 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 » about 8 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 » over 8 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 » over 8 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 9 years ago
bc512 "Unfotunately this isnt working for me, it just fails and the chrome page does the "oh snap" thing :( " | Read more » almost 9 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 9 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 9 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 9 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 9 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 9 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 9 years ago