Validation of preprocessing algorithms: A methodology and its application to the design of a thinning algorithm for handwritten characters
Réjean Plamondon, Marc Bourdeau, Claude Chouinard, Ching Y. Suen · 2002
A method for comparing thinning algorithms involving a series of experiments with human subjects is presented. Several statistical tests are reported to analyze the preference structure exhibited by the data. It is concluded that humans are coherent in comparing thinning algorithm outputs and that reference skeletons can be useful to facilitate the evaluation of thinning algorithms. An evaluation protocol is then proposed and applied to the design and evaluation of a new thinning algorithm for handwritten character recognition.>