CORNER PROPERTIES ================= Most corner detectors just signal the presence of corners. But sometimes it can be useful to know a bit more. My paper "Measuring corner properties", Paul L. Rosin, Computer Vision and Image Understanding, vol. 73, no. 2, pp. 291-307, 1999 builds on of my earlier work, and describes some relatively simple and efficient techniques for measuring orientation, subtended angle, contrast, and relative colour from previously identified corners. FORMATS ======= Images are expected in PGM image format. COMPILING AND RUNNING THE PROGRAMS ================================== Just type make to compile the program A couple of simple synthetic images each containing one triangle with different contrast and orientation are provided to check the program. To run the program: corner-p -i im1.pgm -o im1-crns.pgm -O properties1.txt -t 2000 -e 50 This should find 3 corners and overlay them in the image and save them in the file im1-crns. The text file properties1.txt lists the corners and their properties. +==============================================+ Prof. Paul Rosin School of Computer Science & Informatics Cardiff University Cardiff, CF24 3AA, UK http://users.cs.cf.ac.uk/Paul.Rosin +==============================================+