| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Oh, you're right. The older lut used in the images above can be found here: https://publiclab.org/wiki/photo-monitoring-plugin " | Read more » | over 6 years ago | |||
| plnedestroyer | "the file in that one shows a different Lut than the one you are using in these images " | Read more » | over 6 years ago | |||
| cfastie | "The lut file for use in Fiji is available for download here: https://publiclab.org/notes/cfastie/08-26-2014/new-ndvi-colormap In a comment to that..." | Read more » | over 6 years ago | |||
| 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 years ago | |||
| plnedestroyer | "alright thanks guys, I will try it " | Read more » | over 6 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 » | over 6 years ago | |||
| cfastie | "The histograms were made with Fiji: http://imagej.net/Fiji/Downloads " | Read more » | over 6 years ago | |||
| plnedestroyer | "im talking about the histogram for the infrablue, so I can make a histogram from an image " | Read more » | over 6 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 » | over 6 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 » | over 6 years ago | |||
| ttaylor | "Ned, each "red" pixel in a 2x2 block typically has an intensity about 50% bigger than the either of the two "green" pixels in the same block. The t..." | Read more » | about 10 years ago | |||
| nedhorning | "Nice post. It would be neat to characterize some of these cameras. I made a half-hearted attempt a while back to access the necessary equipment but..." | Read more » | about 10 years ago | |||
| Roolark | "Ok that's good to know. At the moment, I have a canon ps g12 with the schott bg3 infrablue filter that is saving photos as raw, and my canon dslr r..." | Read more » | about 10 years ago | |||
| cfastie | "These are Brenden's photos, so I'm not sure, but I think he was experimenting with different camera settings, which are mostly irrelevant if you wo..." | Read more » | about 10 years ago | |||
| Roolark | "I'm very interested in the work you've done with these and other cameras. With this set of photos, were they taken in JPEG or RAW? I know many poin..." | Read more » | about 10 years ago | |||
| cfastie | "I played with this image quite a bit, and could get very little plant health information from it. You recognized one of the problems -- there is no..." | Read more » | almost 11 years ago | |||
| cfastie | "In case others are interested in the answer to this question: The histograms of the infrablue photos are screen captures from Photoshop pasted ont..." | Read more » | almost 11 years ago |