Total light amount estimating method for studio, involves repeating estimation of amount of light and total amount of light during modification of light parameter of light source, and recording amount of light partially received by point

摘要

The method involves recording amount of light partially received by a point (P) corresponding to sum of lights received from light sources (101-105) to exception of another light source (100). The amount of the light received by the point of the latter light source is estimated. The amount of total light received by the point is estimated by adding amount of the light received from the latter light source to the amount of partial light. The estimation of amount of light and the total amount of light are repeated during modification of a light parameter of former light sources.