Quantitative analysis of the von Bezold effect in graphic communication

Abstract

The paper analyzes the Von Bezold effect, in which chromatic assimilation is manifested, which shifts the appearance of the color of the sample according to the color of the surrounding background. The effect was first discovered and described by the German physicist and meteorologist Wilhelm von Bezold (1837-1907), who noticed that changing just one color in a sample containing several colors can completely change the perception of the entire composition as well as the experience of all colors. This paper presents the results of a psychophysical visual experiment in which the effect of the Von Bezold effect was tested on originally designed samples of graphic characters. 30 subjects of both sexes took part in the experiment and evaluated the strength of the Von Bezold effect on the given samples. On the samples, the letters of the letter T are constructed, which are located on two bases of different colors. The letters are covered with thin stripes that are painted in the color of the opposite background. The experiment determined a very strong effect of the Bezold effect on the described samples, which was also confirmed by statistical analysis.