By applying a band-pass filter, it is possible to highlight how a particular wavelength (or group of wavelengths) is distributed in the image.
For this purpose we made a video of a moving band-pass filter 2nm wide through the visible spectrum (400-720 nm). The subject of the video is a red apple.
If you are interested please visit our website:
http://www.inrim.it/luc/Hyperspectral_Imaging
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