Spectral imaging: Difference between revisions

* Spatial resolution, which can be described in terms of number of pixels for the whole image, or in terms of minimum square area distinguishable on the surface. Typically it depends on the number of mega pixels of the photographic camera

* Spectral resolution, that define the smallest spectral variation that the system is able of distinguish

 

The most used way to achieve spectral imaging is to take an image for each desired band, using a narrowband filters. This leads to a huge number of images and large bank of filters when a significant spectral resolution is required.