Abstract
For a unit step edge, we calculate the gradient magnitude and direction reported by various simple differential edge operators as a function of the edge's actual orientation and offset with respect to the pixel grid. To be consistent with previous work (of Abdou and Pratt) we have initially chosen to analyse (among others) the Sobel, Prewitt, and Roberts Cross operators, using a digitization model in which the pixels have uniform square receptive fields that tesselate the image plane. Our quantitative results provide insights into the behavior of these commonly used operators, insights that can guide their proper application in problems of image understanding and robot vision. We also suggest novel techniques for improving the performance of these operators.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
