| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| sujayj | "@cfastie This is very interesting. Thank you! " | Read more » | over 7 years ago | |||
| cfastie | "Yes, we are going to change the pixel values in our photo. For each pixel in the photo we have taken of vegetation, we use the DN in the red channe..." | Read more » | over 7 years ago | |||
| sujayj | "@cfastie This is a very informative article. However, It isn't clear what is to be done after obtaining the final graph as you've shown. Are we goi..." | Read more » | over 7 years ago | |||
| cfastie | "The lamp post, the wall, and parts of the tree trunk are all very dark. It is a common artifact that NDVI computed for dark areas of photos is not ..." | Read more » | about 8 years ago | |||
| spandan1234 | "Hi cfastie, I need a little help here. Following your suggestions I did all the calibrations required and the results were great. But in the last f..." | Read more » | about 8 years ago | |||
| cfastie | "You can try other colors for doing a custom white balance. See this note: https://publiclab.org/notes/Claytonb/08-13-2016/plant-health-ndvi-white-b..." | Read more » | over 8 years ago | |||
| spandan1234 | "The NDVI map looks good. But is there anything that can be done to better the results. The information required is totally visible here. Any sugges..." | Read more » | over 8 years ago | |||
| cfastie | "Your photo looks good. An NDVI image made with the Photomonitoring plugin for Fiji also looks good. That might be a better way to process your phot..." | Read more » | over 8 years ago | |||
| spandan1234 | "Hi, I have taken some images directly from a Canon SX280 with a red filter. Then I calibrated it using the reflectance from red paper in the shade ..." | Read more » | over 8 years ago | |||
| cfastie | "There is a discussion of common materials with spectral data in the comments here: https://publiclab.org/notes/LaPa/03-31-2016/raspberry-noir-cam-..." | Read more » | over 8 years ago | |||
| Gianni_Gadaleta | "excellent article Chris. based on your experience you can advise us some targets already spectrally characterized, so we can finally start using th..." | Read more » | over 8 years ago |