| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| 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 » | almost 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 » | almost 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 » | almost 7 years ago | |||
| cfastie | "I don't think there is any debate about what those words mean, but I find it hard to use them correctly all the time. The only sensors I have used ..." | Read more » | almost 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 » | almost 7 years ago | |||
| cfastie | "It's really good to see these flight trajectories. I think it's an important way to document a flight. I have not been able to figure out how to m..." | Read more » | almost 7 years ago | |||
| cfastie | "I like the idea of linking to other notes that set the stage for the current one. I was using the response:##### powertag for a while, but that doe..." | Read more » | almost 7 years ago | |||
| cfastie | "Thanks Jeff. That's a really interesting question. I did not include step by step instructions, so a complete novice would have to do some research..." | Read more » | almost 7 years ago | |||
| cfastie | "Well-commented code is always helpful. At the novice level at which I work, good comments are sometimes hard to come by. I have often stolen uncomm..." | Read more » | almost 7 years ago | |||
| cfastie | "That's a good question about the DVD plastic fluorescing. I don't know of anyone who has raised that question about the Public Lab spectrometers. I..." | 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 | |||
| cfastie | "That's a really good point that the En pin on the Feather can disable the regulator and reduce power consumption. We need a table of all the featur..." | Read more » | about 7 years ago | |||
| cfastie | "Hi Patrick, With 60 people, 30 minutes is barely enough time to go outside and come back in, even without doing anything at either place. So you m..." | Read more » | about 7 years ago | |||
| cfastie | "The histograms were made with Fiji: http://imagej.net/Fiji/Downloads " | Read more » | about 7 years ago | |||
| cfastie | "Teams? There are going to be teams? Will they have T-shirts? I'm still not sure overlapping code is relevant. If you have a working sketch for a K..." | Read more » | about 7 years ago | |||
| cfastie | "Maybe more useful than a long list of popular/recent/related notes in the sidebar is the one or two real research notes (not newsletters, events, o..." | Read more » | about 7 years ago | |||
| cfastie | "The dashboard feed is a mix of research notes, comments, questions, and events. The display can be limited to a subset of these using a dropdown me..." | Read more » | about 7 years ago | |||
| cfastie | "You might want to point out that you are referring to the left sidebar which shows up on a subset of publiclab pages. I don't think I have ever f..." | Read more » | about 7 years ago | |||
| cfastie | "Cool. We'll have to get a third answer or Gretchen won't know what to think. " | Read more » | about 7 years ago | |||
| cfastie | "I'm not familiar with the KnowFlow, but I would not expect there to be much overlap in the sketches which are typically used to run the two devices..." | Read more » | about 7 years ago | |||
| cfastie | "Nine cubic meters for 500 euros is not a terrible deal. That's 318 cubic feet (which is a huge tank, so that's a problem unless you don't really ha..." | Read more » | about 7 years ago | |||
| cfastie | "Although there are sensors that require more than 3.3V, most of the simple DIY sensors are designed to use 3.3V. For example, all of the sensors he..." | Read more » | about 7 years ago | |||
| cfastie | "Further empirical evidence suggests that the VBAT pin delivers the voltage of the battery that is plugged into the "Lithium 3.7V" connector, but no..." | Read more » | about 7 years ago | |||
| cfastie | "Evidence suggests my answer is wrong. I powered a Riffle with a battery pack which supplied 4.5V, but the VBAT pin supplied only 2.3V. So maybe it'..." | Read more » | about 7 years ago |