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In a room with only natural light from single large window, the impression of modeling of the human face at that window varies with relationship between the positions of the window, the model and the observer. An experiment was carried out to investigate the modelling of a mannequin doll's face at an actual window. It was found that the angle of the visual line from the observer to the window and the orientation of the model's face systematically affected the modeling score. However, the quantities of light from inside the room and outside the window did not significantly affect the evaluation, because the ratio of the light from these two directions was almost constant for this experiment. A multiple regression model with variables relating to the quantities of light and the position of the observer relative to the model satisfactorily explained the perceived modelling

AN EXPERIMENT EVALUATING THE MODELLING OF A FACE IN AN ACTUAL SETTING : Modelling of human face at a window Part 3