@article {15759, title = {Image Smoothing and Segmentation by Cost Minimization}, journal = {IEEE Transactions on Systems, Man, and Cybernetics}, volume = {SMC-12}, year = {1982}, month = {1982///}, pages = {91 - 96}, author = {Narayanan,K. A. and O{\textquoteright}Leary, Dianne P. and Rosenfeld,Azriel} }