| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| jhondue123456 | "https://www.google.com/ " | Read more » | 8 months ago | |||
| Emmett_Dec | "Thanks, @bhamster! It's not clear what the upper limit is yet, but it should be able to get at least 600 fps. " | Read more » | about 4 years ago | |||
| bhamster | "So great to see how your project is taking shape, @Emmett_Dec! I imagine your inexpensive camera setup might be of interest to people gathering mo..." | Read more » | about 4 years ago | |||
| cfastie | "`>>So according to this we should be getting about 10% transmission of red light, does that mean I should subtract 10% of each pixel value in..." | Read more » | about 5 years ago | |||
| nstarli | "Thanks for the detailed response Chris, this is super helpful! I really appreciate the feedback. So I have actually been provided the full charact..." | Read more » | about 5 years ago | |||
| cfastie | "I don't know for sure whether your protocol with the RPi camera (use automatic white balance with blue paper) and my protocol with a Powershot (use..." | Read more » | about 5 years ago | |||
| nstarli | "Thanks for the reply Chris. I have read through pretty much every single one of your posts! So my white balance calibration is the simple one that ..." | Read more » | about 5 years ago | |||
| cfastie | "I am not familiar with your white balance procedure so I don't know how it is affecting your results. If you can manually set the white balance, se..." | Read more » | about 5 years ago | |||
| nstarli | "Sorry, I meant to include the cfastie colormap image as well: " | Read more » | about 5 years ago | |||
| warren | " Hi, just checking in on this awesome old post! Noting that we now have an automated SD card image generator with WiFi video streaming at the #pi-b..." | Read more » | over 5 years ago | |||
| warren | "Some serious progress has been made on this, for running SpectralWorkbench on the Raspberry Pi and connecting to it's camera: https://github.com/pu..." | Read more » | about 6 years ago | |||
| warren | "We now have a great solution for this! Pi Builder!!! https://publiclab.org/pi-builder " | Read more » | about 6 years ago | |||
| raj | "raspberry pi camera: spectral response curves for more details go through my website you can get all details http://zipansion.com/1TSg4 " | Read more » | over 6 years ago | |||
| warren | "Talking with @wmacfarl, @kgradow1, @bmela and @partsandcrafts, you can get a card pre-installed with "NOOBS" -- the simplest starting operating sys..." | Read more » | about 7 years ago | |||
| elongo | "Thank you so much @LaPa for your insights and sharing the experience. Would be possible for you share with me how did you implemented, using the ra..." | Read more » | about 7 years ago | |||
| LaPa | "Hi, Elongo, I didn't reach the goal to measure health of plants most because Red Horning wrote me, by private mail, the that technique wasn't prope..." | Read more » | about 7 years ago | |||
| elongo | "Thank you!! " | Read more » | over 7 years ago | |||
| liz | "Hi! @LaPa (hoping to trigger a notification email to them) :) " | Read more » | over 7 years ago | |||
| elongo | "Hi @LaPa, 1) just wondering which steps you followed to setup and run ImageJ and Fiji in your Raspberry Pi, and get the NDVI images. I am followin..." | Read more » | over 7 years ago | |||
| Sidney_AstroPlant | "Using NIR LEDs seems like a good option to look into and I'm happy to hear that I might not have to deal with extensive filtering! I just got a res..." | Read more » | over 7 years ago | |||
| cfastie | "A simple option might be to turn on some NIR LEDs when the photography happens. The NIR:VIS ratio might not match sunlight, but if you know what it..." | Read more » | over 7 years ago | |||
| Sidney_AstroPlant | "The kit is fully enclosed with LED with a certain blue and red ratio (I have to verify what the exact ratio is). This brings me to the conclusion t..." | Read more » | over 7 years ago | |||
| cfastie | "Thanks for adding a photo. NDVI is based on the assumption that the light illuminating the foliage has a certain proportion of NIR and VIS -- the p..." | Read more » | over 7 years ago | |||
| cfastie | "Using two cameras solves one of the two problems I described (mixed NIR and VIS). That problem can also be solved by measuring or making assumption..." | Read more » | over 7 years ago |