The path-breaking work of Zhabotinsky and a 1968 conference on biological and biochemical oscillators in Prague that feature talks and demonstrations on chemical oscillators and patterns, knowledge of what had now come to be called the Belousov-Zhabotinsky (BZ) reaction and its exotic behavior began to filter to the World. The fantastic periodic oscillation phenomena attract more and more scientists interesting. In this paper, A BZ reaction with illuminating an image on the media surface was designed and the periodic changing of image occurred. Image smoothing (blurring) and image restoration took place alternately. At last the image was blurred totally. A computable simulation of this reaction was applied and found that it is a very powerful implementation for image processing because of its parallel and efficiency. The expected image information can be obtained only from one reaction process.