PREFERENCE AND VISUAL IMPRESSION OF HUMAN FACES LIT IN VARIOUS DIRECTIONS

摘要

The preference and visual impression of human faces were investigated using various lighting settings including luminance and direction of lighting. Thirty observers assessed preference and visual impressions of 48 sculpture images shown on an LCD display. The results show strong connections between light directions and visual impressions, and between luminance contrast in the sculpture image and the visual impressions. The results indicate that the observers tended to have positive impressions for sculpture images with the light coming from the top rather than from the bottom. In addition, the observers tended to have positive impressions for sculpture images with a small luminance contrast rather than a large contrast. This implies that we can use various lighting conditions to evoke various moods from the observers.