the experiential nature of color can be understood by examining the basic situation that result in the experience of color. the sensation of color requires three components: a light source. an object that is illuminated, and the eye-brain as a detector. colorimetry simply refers to this three-way relationship as the observer situation. a complete understanding of this visual relationship is needed for success in the visual and instrumental evaluation of color. the regular practice for visual color apparatus used for examining color. such as a light booth. should incorporate illumination and viewing controls. visual evaluations need to be precise and reproducible. a change in the viewing conditions will have a great impact on the results of any visual appraisal. standardized conditions for a viewing environment will greatly improve the inspection and approval of color. a number of components are critical to the success of visually judging color:
the spectral quality of the light source: