Abstract
Most of the natural phenomena include a time fluctuating component. Frequency analysis of this time fluctuation component leads to the famous "1/f fluctuation" characteristic that gives mental as well as psychological relaxation effects to human. Because of wide spreading electrical power supply, modern residence removes the combustion utilities and installs much electricity. Our target in this paper is to propose the method of frequency characteristic extraction from dynamic burning flame image of candle. As a result, one of the methods proposed in this paper enables us to extract major frequency characteristic of lighting sources. The other one makes it possible to visualize the precise frequency characteristic of lighting sources.
