Comments

Author Comment Last activity Moderation
cfastie "Can you attach the original photos from the camera? Or do they exist only locked in the burly depths of Infragram for eternity? " | Read more » over 9 years ago
cfastie "I'm confused about which images are photos from the camera and which are NDVI images. It would also help to know what the colors mean in NDVI images. " | Read more » over 9 years ago
cfastie "If you want your DIY NDVI to be comparable to legacy (e.g., satellite) NDVI, there are a few things to consider. First, consumer cameras might not ..." | Read more » over 9 years ago
cfastie "I'm excited too Mathew. The Saturn Rig Kit and SkyShield Kit could make a great package for under $150. Add a camera and you have a nice autoKAP se..." | Read more » over 9 years ago
cfastie "Or without knowing the spectral response of the sensor, you can brute force the response of a dual-camera system by shooting through narrow band pa..." | Read more » over 9 years ago
cfastie "White balance is important for most single-camera NDVI systems, but could be irrelevant to dual-camera systems. The goal is to capture photos with ..." | Read more » over 9 years ago
cfastie "Really nice photos Mike. And you must be a ninja photographer because I never noticed that you were taking those photos of me. Thanks for posting t..." | Read more » over 9 years ago
cfastie "This seems to be related to an old issue posted at Github. Applying a lut to a float NDVI image from the photomonitoring plugin does not produce th..." | Read more » over 9 years ago
cfastie "Chris Fastie would not miss iFarm even for a trip to NOLA (unless unlimited Bywater Bombers were promised). Jeff do you still have the poster about..." | Read more » over 9 years ago
cfastie "Koen, These NDVI images look really good. There are multiple reasons that could explain why the trees in the distance have lower NDVI values with ..." | Read more » over 9 years ago
cfastie "Hi azaelb, I was not able to get very meaningful NDVI images from a Mobius ActionCam key chain camera modified with a blue filter. A red filter wo..." | Read more » over 9 years ago
cfastie "Hi Rita, Your photo above (NIR1_Red3_b.jpg) will not produce very good NDVI. Most of the pixels of plants have the same value in each of the three ..." | Read more » over 9 years ago
cfastie "Ah, uploading each image sounds like the way to go. Will the default connection be wired or wireless? Thanks for the stl, it looks good. " | Read more » over 9 years ago
cfastie "So it could be useful to point the camera at a scene with solid white pine trees on the left and mixed deciduous on the right and lawn at the botto..." | Read more » over 9 years ago
cfastie "I really like the idea of making useful data by pointing a camera out my window. I have a Raspberry Pi lying around (no camera yet) and lots of win..." | Read more » over 9 years ago
cfastie "I took a look at lesson three about IR light (http://publiclaboratory.org/wiki/public-lab-lesson-3-photography-in-a-new-light) and made some commen..." | Read more » over 9 years ago
cfastie "Jeff, No I have not made a wiki page yet for these models. That will be a fun project. Thingiverse certainly has a great user interface. By default..." | Read more » over 9 years ago
cfastie "It's great to see Cotinus coggýgria. We had one in our yard in Maryland, but I have never seen it in its native habitat. We also have a native spec..." | Read more » over 9 years ago
cfastie "I'm a little worried that MapKnitter will always think that lat =1 and lon=1. But it seems to find the map the next time it is opened. " | Read more » over 9 years ago
cfastie "Any workflow will be great. The workflow that I imagine is usually not the one that is available. That is probably good for the rest of the world. ..." | Read more » over 9 years ago
cfastie "I was very excited to try this, but MapKnitter gave an error because I did not enter a lat and lon for the map. That seemed to defeat the purpose. " | Read more » over 9 years ago
cfastie "It's easy to drag a few of your photos from the Mobius into a research note or add them to a post at: https://groups.google.com/forum/#!forum/plots..." | Read more » over 9 years ago
cfastie "That's a great idea to use rice to make the bottle non-compressible. It can also keep your payload dry if a little water leaks in. For the testing ..." | Read more » over 9 years ago
cfastie "Andresc4, The A2300 allows custom white balance. For a red or yellow filter, flood the sensor with red light (fill the frame with red paper in dire..." | Read more » over 9 years ago