Colour edge detectors: an overview and comparison

There exist many experimental situations in which a subjective rather than an objective test of a specific variable proves to be a much more relevant method of investigation. Because of the intimate relationship between image processing and the human eye, subjective tests are extremely important in the final judgement if an image is passed by the human eye. In this paper, insight into what method of colour edge detection results in edge maps which are in best accordance with what the human eye sees. In particular, this paper presents a comparison of the relative subjectively-based performances of a group of basic order statistic and difference vector operator detectors.