| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| kiranay | "@cfastie and can you please guide me with the plot of ndviImage. " | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie How about this picture? Can you compute its NDVI? " | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie Thank you so much for your helo " | Read more » | almost 8 years ago | |||
| cfastie | "Open an image in Fiji and hover the cursor over it. At the bottom of the Fiji window it will say "value=" followed by three numbers which are the R..." | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie I have Fiji on my laptop, but cannot determine RGB values.Guide me with it. Can you calculate NDVI for the following image? And can you te..." | Read more » | almost 8 years ago | |||
| cfastie | "You need a program like Fiji to see the RGB values. The latest photo has more yellow orange color in the foliage so it should do a good job discrim..." | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie I did white balance setting again for the image, check it out " | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie Its not understandable, that when i'll open my PNG file how will i able to read the pixels on it? " | Read more » | almost 8 years ago | |||
| cfastie | "There is a discussion of controlling the white balance on the Raspberry Pi camera here: https://publiclab.org/notes/LaPa/12-03-2015/how-do-i-set-a-..." | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie And how can i use NDVI formula to calculate the value? " | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie how can i do artificial white balance or calibration? Yes, these photos are taken with RPI NoIR camera with a blue filter with preset whit..." | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie check this too. What i conclude from these two images now? I've set the white balance too. " | Read more » | almost 8 years ago | |||
| cfastie | "It would be helpful to know how you made those photos (camera, filters, white balance). I am guessing they were made with an RPi NoIR camera with a..." | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie check this too. What i conclude from these two images now? I've set the white balance too. " | Read more » | almost 8 years ago | |||
| kiranay | "@cfastie following image describes what? And what proper image processing index can be used to evaluate the health, ndvi_vgyrm , ndviblu2red, or ..." | Read more » | almost 8 years ago | |||
| cfastie | "Those two photos have some good plant health information in them, especially the second one of tree foliage (family Anacardiaceae?). That one produ..." | Read more » | over 8 years ago | |||
| kiranay | "From the above two images how can i detect the plant condition? @cfastie " | Read more » | over 8 years ago | |||
| kiranay | " @cfastie " | Read more » | over 8 years ago | |||
| kiranay | " is this a better image? can i evaluate the accurate results from it? @cfastie " | Read more » | over 8 years ago | |||
| cfastie | "Kiran, The graph is a histogram which can be made in free programs like GIMP, IrfanView, or Fiji or photo editing programs like Photoshop. Here is..." | Read more » | over 8 years ago | |||
| kiranay | "@cfastie can you please guide me how did you made the spectrum of my image, and the NDVI image of your picture. " | Read more » | over 8 years ago | |||
| cfastie | "The blue filter did not seem to change the photo very much. The three channels are still very similar. Even for just a leaf (marquee below) the bri..." | Read more » | over 8 years ago | |||
| aldehyde | "Photomonitoring Plugin on Fiji or http://infragram.org/ " | Read more » | over 8 years ago | |||
| kiranay | "@cfastie Here i am attaching that same picture with the blue filter. How this picture can be use to transform into pseudo NDVI image. " | Read more » | over 8 years ago |