@INPROCEEDINGS{Novak87,author = {C. L. Novak and S. A. Shafer}, year = 1987, title = {Color Edge Detection}, booktitle = {Proc. Of {DARPA} Image Understanding Workshop}, pages = {35-37}, publisher = {Morgan Kaufmann Publishers, Inc.}, address = {Los Angeles (USA). Los Altos, CA}, theme = {segmentation+contour}}