| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "I don’t quite understand how this subtraction would work. When using a red filter, we expect the blue channel to record mostly near infrared light ..." | Read more » | about 10 years ago | |||
| cfastie | "I posted a note about the new lut. There is a tab delimited file of the colormap in a comment there. I will put the lut file for use in Fiji there ..." | Read more » | about 10 years ago | |||
| cfastie | "Blender looks to be quite capable. I have some questions about your 3 step process to make the color mapped image: What is the "A" in RGBA? You s..." | Read more » | about 10 years ago | |||
| cfastie | "Here is a tab delimited file of the new lut: NDVI_VGYRM-lut.txt Will Fiji make a lut file from this? " | Read more » | about 10 years ago | |||
| cfastie | "Here is an NDVI image of your latest scene using a new lut I have been trying. I'll post a research note about this lut soon. " | Read more » | over 10 years ago | |||
| cfastie | "Silvan, Your new results look really good. You can probably improve on those settings for any particular scene, but it will require more trial and..." | Read more » | over 10 years ago | |||
| cfastie | "Silvan, Okay, infraBlueNDVI.lut is the same as NDVIBlu2red.lut Infragram does not use the luts that are used in Fiji. Infragram uses its own look..." | Read more » | over 10 years ago | |||
| cfastie | "Hi Silvanhi, That's a gorgeous landscape. And a great subject for ndvi images. There are a couple of things I don't understand about your results...." | Read more » | over 10 years ago | |||
| cfastie | "Which cameras are you having focus problems with? The A2300 does not have manual focus, so the best you can do is probably infinity focus mode whic..." | Read more » | over 10 years ago | |||
| cfastie | "writing a brief research note 'wrapper' around the 'longer article' that we're hosting on github, and simply linking to this external article in th..." | Read more » | over 10 years ago | |||
| cfastie | "only insofar as the time and resources required don't detract from the larger project. That is certainly key. The tools should lower the barriers ..." | Read more » | over 10 years ago | |||
| cfastie | "Great application. I assume your camera but not you got to go in the plane? How was the camera triggered? Was it mounted on the plane? What was th..." | Read more » | over 10 years ago | |||
| cfastie | "Hi Pat, The Wratten 87 passes only NIR; it's great for the NIR camera in a dual camera rig. The Wratten 25 is the best filter I have used for a sin..." | Read more » | over 10 years ago | |||
| cfastie | "I get it now. Your translation is good. The blue is actually a light blue, I think [140 140 255] at 0.56. And I put pure green in there explic..." | Read more » | over 10 years ago | |||
| cfastie | "I'm not sure what a Fiji lut file is. Might be binary. I got the values into a tab delimited text file. NDVI_VGYRM-lut.txt And I was able to cir..." | Read more » | over 10 years ago | |||
| cfastie | "I will have to see if Fiji can output the values for a lut. Fiji has a GUI lut editor, so I have no idea what the values are. Maybe Ned can help. H..." | Read more » | over 10 years ago | |||
| cfastie | "Your new Infragram SD4000 seems to have promise. Here is one with my new lut: . " | Read more » | over 10 years ago | |||
| cfastie | "I think (hope) Jeff is describing something like this: I make a map by carefully aligning photos, writing a description, and annotating it. I save..." | Read more » | over 10 years ago | |||
| cfastie | "That's a tough one. With the IR blocking filter removed, all three color channels (all pixels, regardless of which color array filter they are unde..." | Read more » | over 10 years ago | |||
| cfastie | "theowallis, Did you add a new filter to replace the IR block filter? Where did you put it? Do you think it is the act of tightening the set screw ..." | Read more » | over 10 years ago | |||
| cfastie | "Hi Scott, A Gigapan account is free, although you can pay for commercial features. The minimum limit on all gigapan uploads is 50 megapixels (not m..." | Read more » | over 10 years ago | |||
| cfastie | "@rway, Ned's plugin for Fiji has always been able to use any of the three channels for either the infrared or visible band when computing NDVI. So ..." | Read more » | over 10 years ago | |||
| cfastie | "The spectral plot of grass that you are interested in replicating is a plot of reflectance. This curve represents a very well known pattern of refl..." | Read more » | over 10 years ago | |||
| cfastie | "Good tips. Did you figure out which settings caused your balloon flight photos to be overexposed? It looked like some of your photos were exposed ..." | Read more » | over 10 years ago |