Abstract: In order to remove color spots with the method of surface detail dynamic transfer，it requires a Gaussian smoothing parameter σ which is determined by the visual inspection on the geometric module by the user.Meanwhile，every time the user changes σ，it has to apply Gaussian smoothing to the entire image that may cost a lot of time.To solve the problem，this paper puts forward a technology of surface detail dynamic transfer，which can compute σ according to the size of the color spot and just needs to apply Gaussian smoothing to a corresponding region with smaller size of the color spot.It makes the process of removing color spots on image more intelligent and much more efficient on computing.