| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| plnedestroyer | "Okay I have everything ready to go but I have to ask you for the LUT file that you are using for your image then I'm set! " | Read more » | about 7 years ago | |||
| plnedestroyer | "okay, yeah I understand it way better now, I just need to figure out how to get the LUT on it, that was my main confusion, well and still is a bit,..." | Read more » | about 7 years ago | |||
| cfastie | "What Fiji does is a bit confusing. In a normal histogram the x-axis is brightness so 0 (at the left end) is black and 255 (at the right end) is max..." | Read more » | about 7 years ago | |||
| plnedestroyer | "Ah okay got you, I was ultra confused,but how would that work, since its only putting the values on the histogram as just the brightness of the pix..." | Read more » | about 7 years ago | |||
| cfastie | "Fiji made that histogram of the color NDVI image. The NDVI image is not an RGB color image (it is a single channel image with a color look up table..." | Read more » | about 7 years ago | |||
| plnedestroyer | "where can I find how to do so, I looked through the tutorials and did not find anything on making custom histograms, I am able to make a b&w hi..." | Read more » | about 7 years ago | |||
| cfastie | "I used Fiji (ImageJ) to make the histograms of the NDVI images. Fiji will make a couple of different kinds. " | Read more » | about 7 years ago | |||
| plnedestroyer | "@cfastie did you use a plugin to get the color histogram for the ndvi, because I am creating ndvi images from infrared but I need a histogram from ..." | Read more » | about 7 years ago | |||
| plnedestroyer | "alright thanks guys, I will try it " | Read more » | about 7 years ago | |||
| imvec | "Ey @plndestroyer you can find some Fiji (ImageJ) video tutorials here ;) https://publiclab.org/notes/xose/12-06-2016/afloss-collection-of-tutorials " | Read more » | about 7 years ago | |||
| warren | "@azaelb posted this a while back -- needs more pictures, but looks pretty successful, and there's follow-up on image processing too: https://public..." | Read more » | about 7 years ago | |||
| warren | "What if we could start by compiling some examples of interpretation (Chris has posted some great ones), and try to note what were the "givens" that..." | Read more » | about 7 years ago | |||
| cfastie | "Katie, it sounds like what would be helpful for you is a better NDVI wiki. That would explain what it can mean when NDVI is high, and why it might ..." | Read more » | about 7 years ago | |||
| kgradow1 | "This would be really helpful to me. I've struggled a lot with the infragram trying to make sense of the processed images, which has as much to do ..." | Read more » | about 7 years ago | |||
| warren | "Does anyone have some more photos of this conversion process we could show here, more step-by-step? " | Read more » | about 7 years ago | |||
| cfastie | "The histograms were made with Fiji: http://imagej.net/Fiji/Downloads " | Read more » | about 7 years ago | |||
| plnedestroyer | "im talking about the histogram for the infrablue, so I can make a histogram from an image " | Read more » | about 7 years ago | |||
| cfastie | "The only files used here are the photos themselves. You can right click and "open in new tab" and then "save image as" to get these images. " | Read more » | about 7 years ago | |||
| plnedestroyer | "where might I find files for this, I am needing it to create data for a science project, I would also like to keep in contact via email or other me..." | Read more » | about 7 years ago | |||
| warren | "Hi, possibly also see this related question: https://publiclab.org/questions/jjoll/06-03-2017/can-a-spectrometer-be-used-to-detect-material-type " | Read more » | about 7 years ago | |||
| warren | "Hi, Chris - we're (finally) hoping to address this in a few different ways, and thanks for your excellent and thoughtful suggestions. I've been bre..." | Read more » | about 7 years ago | |||
| cfastie | "The new filter can be inside the camera or in front of the lens. If it is in front, it will get scratched and might be bent (not flat), but it is e..." | Read more » | about 7 years ago | |||
| rrstrauss | "@azaelb There's something I don't really get. Basically what we need to do is to remove the ir cutter from inside the camara and place the red filt..." | Read more » | about 7 years ago | |||
| cfastie | "I don't know how much LEDs vary in their NIR emission. But it's easy to add some NIR LEDs to the mix. There is an advantage to using only artificia..." | Read more » | about 7 years ago |