AN ENTRY-LEVEL OVERVIEW AND PRACTICAL GUIDE TO THE SUCCESSFUL IMPLEMENTATION OF COLOR ANALYSIS USING MACHINE VISION IN AUTOMATED INSPECTION AND ON-LINE QUALITY CONTROL APPLICATIONS.
What is color? There are technical responses to the question as well as more practical answers. Technically, one could define a specific color as a wavelength (or combined wavelengths) of energy in the electromagnetic spectrum generally visible to the human eye. But is that really “color”? In effect, it is not. The term has little meaning technically except in the context of perception. Certainly, reflected or transmitted or absorbed light can be analyzed as to spectral content. Practically though, the color of something is simply what we perceive it to be and the name we attribute to that visual perception.