infrablue
infrablue


Author Comment Last activity Moderation
andresc4 "Sorry Chris, where are you getting the dialog box for processing VIS/NIR image pairs into NDVI and NRG menu from ? ( the second screen that you sh..." | Read more » about 10 years ago
cfastie "The main reason your results differ from mine is that you did not have the home-made color lookup table I used. That lookup table is now available ..." | Read more » about 10 years ago
andresc4 "Great, I have a lot to read ! I have Fiji and the plugin running,,, was able to run the plugin with one picture and with a directory with 2 picture..." | Read more » about 10 years ago
cfastie "Andres, CHDK settings: It appears that you have the synchronous camera triggering working, so of the other CHDK settings for aerial photography t..." | Read more » about 10 years ago
andresc4 "Hey Chris thank you for the quick reply! , the photo looks great! , and you were right, i did not use white balance I have the camera just with CHD..." | Read more » about 10 years ago
cfastie "Andresc4, Your UAV photo pairs are great quality. They are sharp and rectify with each other easily. I used Ned's Fiji plugin to align the pairs a..." | Read more » about 10 years ago
fnok "Sounds like a great application for NIR imagery. I think you may even benefit by putting your camera back up in the air --> balloon mapping or a..." | Read more » about 10 years ago
warren "There's been some discussion of blurry images and how to fix this to some degree in the mailing lists: https://groups.google.com/forum/#!searchin/p..." | Read more » over 10 years ago
drkatnz "Sure, have provided a zip file link with all the source, and posted some pictures into the article itself. Not sure why the focus sucked on the di..." | Read more » over 10 years ago
warren "Wow, fantastic. Could you share some of the source images, maybe in a zip file, or samples from your sets of the paddock photos? " | Read more » over 10 years ago
nedhorning "Hi Roolark - I don't have a spectral sensitivity curve for the A2200. I've been using LEDs to get a rough idea of spectral sensitivity but that's a..." | Read more » over 10 years ago
Roolark "@Ned, do you already have a spectral sensitivity curve for the canon A2200, with its ir block filter removed (similar to the Nikon curve above)? If..." | Read more » over 10 years ago
Roolark "@Cfastie, That post from Tom was the one I was referring to in my idea #2 but yeah, I must have misread it. Still, regarding #1, I do understand..." | Read more » over 10 years ago
cfastie " Interesting idea. Some IR blocking filters are "hot mirrors" which are coated to reflect IR. Maybe it's possible to remove the coating (but maybe ..." | Read more » over 10 years ago
Roolark "Couple quick thoughts on the filter/clarity issue. For starters, I just ordered an a2200 for the infra blue purposes from eBay, so I haven't had a ..." | Read more » over 10 years ago
Dongjie "cfastie, yes, I am referring for that. Thanks for your information. :) " | Read more » over 10 years ago
cfastie "Dongjie, are you referring to the gigapans? They are gigapans embedded here from gigapan.com. " | Read more » over 10 years ago
Dongjie "cool, how do you make the figure like Google streetmap? " | Read more » over 10 years ago
nathanathan "I've started experimenting with phosphorescent paint. Here's a link to a note on what I've done so far. " | Read more » over 10 years ago
funkycbj "Light is transmitted but it is diffusely scattered past a certain depth, which seems to be ~7mm. The minimum thickness increases with the size of ..." | Read more » over 10 years ago
nedhorning "Thanks for the suggestion. Maybe a teflon sheet is the way to go although I don't have any experience with these. Some of the thin sheets seem tran..." | Read more » over 10 years ago
funkycbj "Krylon extra flat black spray paint is diffuse and spectrally flat across the vis-nir. A small sheet of teflon isn't too expensive and works great ..." | Read more » over 10 years ago
nedhorning "I have been making some progress toward standardized calibration targets. Does anyone viewing this know of a source for inexpensive paints/coatings..." | Read more » over 10 years ago
nathanathan "I recently ordered a smartphone spectrometer, measuring glow in the dark pigment spectra seems like a fun project to try it out on. I'll give it ..." | Read more » over 10 years ago