Generation of Zebra-Pattern Images by Weight-Shifted Bilateral Filter and Anisotropic Shock Filter

Abstract

We propose a non-photorealistic rendering method for generating zebra-pattern images from input color images. First, the weight-shifted bilateral filter is applied to an input image for transforming it to a labyrinthine image, to which the anisotropic shock filter is applied for transforming it to a zebra-pattern image. While the labyrinthine images contain noises and angular lines, the anisotropic shock filter removes noises and smoothes lines. We demonstrate that drawing lines in black increases the contrast of zebra-pattern images and each line becomes clearly detectable.