Stipple Removal in Extreme-tone Regions
Loading...
Date
2019
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Conventional tone-preserving stippling struggles with extreme-tone regions. Dark regions require immense quantities of stipples, while light regions become littered with stipples that are distracting and, because of their low density, cannot communicate any image features that may be present. We propose a method to address these problems, augmenting existing stippling methods. We will cover dark regions with solid polygons rather than stipples; in light areas, we both preprocess the image to prevent stipple placement in the very lightest areas and postprocess the stipple distribution to remove stipples that contribute little to the image structure. Our modified stipple images have better visual quality than the originals despite using fewer stipples.
Description
@inproceedings{10.2312:exp.20191083,
booktitle = {ACM/EG Expressive Symposium},
editor = {Kaplan, Craig S. and Forbes, Angus and DiVerdi, Stephen},
title = {{Stipple Removal in Extreme-tone Regions}},
author = {Azami, Rosa and Doyle, Lars and Mould, David},
year = {2019},
publisher = {The Eurographics Association},
ISBN = {978-3-03868-078-9},
DOI = {10.2312/exp.20191083}
}