Generation of Ripple Images by Smoothing Filters Using Different Regions
We propose a non-photorealistic rendering method for generating ripple images from gray-scale photographic images. Ripple images represent photographic images with wavy lines in a certain direction. Our method is executed by an iterative process with two smoothing filers using different regions in the window. Our method has two features. The first feature is that ripple patterns can be automatically generated according to the density and contour of photographic images. The second feature is that the interval and direction of ripple patterns can be changed by changing the values of the parameters of our method. In order to verify the effectiveness of our method, we conducted experiments using various photographic images. Experimental results show that our method can realize the two features.