Date: 29.09.2014

Speaker: Henrik Lieng, HiB

TitleDefining images as Catmull-Clark surfaces

Abstract: An image is typically defined as an NxM grid, where each grid element (or pixel) holds one (grey-scale) or three (colour) values. An alternative approach is to define images in the continuous setting. Such images are typically referred to as vector images. A challenge with this approach is to convert any discrete image to a continuous representation without losing high-frequency information. I propose a different approach, bypassing the problem of conversion: to supplement the original image with vector images. Applications include contrast enhancement and artistic imagery. Taking this approach further, I explore novel definitions of (vector) images.