Abstract
M.Ing. (Mechanical Engineering)
This dissertation concerns itself with the evaluation of edge detectors. Existing
evaluation methods are described and discussed. Various edge detectors are described
and used to obtain experimental results. A new evaluation method which takes into
consideration both a subjective and .non-subjective component is proposed. This new
method is not meant to be definitive. The reason for this is that the author feels that
this dissertation should primarily highlight the factors that are important in evaluating
edge detectors. It was found that if it is not possible to set parameters for more
sophisticated edge detectors, they do not always produce better results than the simpler
methods such as the Sobel operator.