By removing the IR filter from a digital camera and adding a ‘superblue’ filter, the NDVI can be calculated with just a little bit of image processing. The folks behind this have put up a ...

Typically used with infra-red cameras, scopes, and night vision goggles for surveillance, these filters enable infrared energy to be emitted from a variety of light sources while blocking visible ...

A miniature camera was used as the video source after removing its infrared filter. Note: if you do this, don’t forget that you will need to manually readjust the focus! The camera was mounted ...

Many styles are used for color balancing, matching CCD or other sensor sensitivity ranges, emphasizing or blocking ranges of spectra such as ultraviolet, infrared, or portions of the visible spectrum ...