| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| nedhorning | "There are gel and glass NIR-block filters that you can buy that do a pretty good job at blocking visible light. There might also be some other free..." | Read more » | over 10 years ago | |||
| nedhorning | "My guess is that you would get the same effect that you get with a blue card if you used a gray card and then multiply the blue channel by a factor..." | Read more » | over 10 years ago | |||
| nedhorning | "This white balance stuff got me thinking. I don't think the white balance actually changes the amount of light recorded by the sensor but instead m..." | Read more » | over 10 years ago | |||
| nedhorning | "With the Infrablue filter there is both visible and NIR light hitting the camera sensor and it would be helpful to know how different wavelengths a..." | Read more » | over 10 years ago | |||
| nedhorning | "Sorry for not explaining this better. We were just trying to understand which sensor channels are recording which wavelengths of light. The images ..." | Read more » | over 10 years ago | |||
| nedhorning | "Thanks for posting this Jeff. The results are interesting. Most of the LEDs that I've seen have band widths in the 5nm - 10nm range. It's important..." | Read more » | over 10 years ago | |||
| nedhorning | "Would the result improve if you set white balance using a neutral target? Concrete is pretty even across the visible and near IR. " | Read more » | over 10 years ago |