Rendering of the Shroud of Turin using sinusoidal pseudocolor and other image processing techniques

To help characterize noisy and subtle features in images, computers with graphics can be used to produce visual representations with a spectrum of perspectives. In this article, processed images of the Shroud of Turin-a 2000-year-old linen burial cloth-are computed, and they are presented with accompanying descriptions of patterns produced by the image processing. The images of the Shroud are created by using sinusoidal pseudocolor functions, and the resultant pictures reveal a beautiful, complex picture and help to differentiate various regions of potential interest. This paper differs from others in that it focuses on mathematical techniques for rendering this image which include unusual equations, shading, and convergence schemes. © 1988.