The way we see it , a short description. Instrumentation and how it works. Simple example of a reflectance spectrum measurement. Advantages of imaging spectrometry and how to utilise them.
Standard spectrophotometers are usually able to measure from a small integrated area at a time.
This means that if one wants to measure the optical spectrum from different spatial locations of an object, either the measuring instrument or the target has to be moved or scanned. Although the eye is extremely good in directly comparing color difference it is not very good in absolute measurements. There is also possibility for errors, of which the metamerism is a good example. The possibilities are limited only by the available components and their properties. The resulting image from the target is certainly limited, just one narrow line, but still it is much more than just a point.