| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Quite interesting. It will take several more readings before it's understood. " | Read more » | 11 months ago | |||
| bhamster | "Thanks for this vital information @Ag8n! " | Read more » | about 1 year ago | |||
| Ag8n | "The nir instruments are heavily used in agriculture. The company I worked for wanted to use Near Infra-Red (reflectance), also called NIRR, to dete..." | Read more » | about 1 year ago | |||
| Ironman | "Thanks for all your answers and help. But solving all kind of plastics or swapping them with iron (III) chloride and having a high chance of false ..." | Read more » | about 1 year ago | |||
| Ag8n | "Please go to the web page mentioned. You will see that this test works by reacting the extract with iron (III) chloride. Many other materials wil..." | Read more » | about 1 year ago | |||
| bhamster | "There are some potential leads in this Twitter thread (screenshot below) Thanks @liz and @sara for these! " | Read more » | about 1 year ago | |||
| Ag8n | "A better approach would be Uv/ vis. Phenols, such as BPA, absorb at about 280 nm. So you would set up an extraction to pull out the BPA and run a..." | Read more » | about 1 year ago | |||
| jeffa_plain | "Yeah, I plan to use a point-and-shoot camera next (preferably one with optical zoom) so I can get proper NDVI imaging done. other than that, thank ..." | Read more » | over 1 year ago | |||
| warren | "Yes, i agree there is some infrared data showing in the trees, and I do think it's possible to get useful info out. Just be aware that the dynamic ..." | Read more » | over 1 year ago | |||
| jeffa_plain | "I did indeed remove the IR lens from this! Thats why I bought the GoPro 3+ Silver because that's the only GoPro 3 that has an easily removable lens..." | Read more » | over 1 year ago | |||
| warren | "I think if you got closer in white balance in pre-configuring the GoPros, you can probably un-boost the blue channel some more and get better disti..." | Read more » | over 1 year ago | |||
| jeffa_plain | "I was kinda hoping that this would be as simple as inverting the color scale at the bottom but nothing that simple with stuff like this haha. From ..." | Read more » | over 1 year ago | |||
| warren | "Hi, I think you're right that you need to adjust the white balance, and you can learn more about how that works here: https://publiclab.org/notes/w..." | Read more » | over 1 year ago | |||
| jeffa_plain | "I'm not sure where I would use the (1-R), I just tried it and I didn't get anything that was useable. all that needs to happen it seems is the resu..." | Read more » | over 1 year ago | |||
| jeffa_plain | "From the research ive done since making this post, I think it may be because I cannot adjust the white balance on a GoPro, both of the images are r..." | Read more » | over 1 year ago | |||
| warren | "Hmm, interesting, can you share your original images? I think we might just be able to do (1-R) instead of (R) or something, for some of the values. " | Read more » | over 1 year ago | |||
| ektopyrotic | "Thank You! That's what I was going for! " | Read more » | almost 2 years ago | |||
| liz | "Surreal! " | Read more » | almost 2 years ago | |||
| utobolearning | "other two images - they are more or less equal among the three channels as the camera can only see NIR. Can you think of any explanation? Why wou..." | Read more » | over 2 years ago | |||
| batuhanbozuntu | " Php Script " | Read more » | over 2 years ago | |||
| davidmbatuegwu | "I will be attending! " | Read more » | almost 3 years ago | |||
| wln215 | "I believe the NoIR Camera has an upper limit of 909 nm. I can't find the source of this info, but I wouldn't expect teh IMX-219 sensor on board wil..." | Read more » | almost 3 years ago | |||
| kumarvirendran | " This is one the best blog for health. we are here give health-related best information. Those give you better health solution, which can be helpfu..." | Read more » | about 4 years ago | |||
| nedhorning | " I can think of two possible reason. The most obvious would be that the illumination changed and the other is that the sensor temperature change. S..." | Read more » | about 4 years ago |