An iterative morphological algorithm for segmentation of textured cell
images encountered in cytology is introduced. The initial image segme
ntation is determined by classifying the image local variation informa
tion obtained with dilation and erosion operations. A median filter is
then used to smooth the initially segmented image. A modified median
filter is applied subsequently to correct possible classification erro
rs inside the cells. The modified median filter can clear small region
s of misclassified pixels while avoiding significant changes to the ce
ll profiles. An erosion operation is finally used to restore the cell
regions. Experimental results demonstrate that the proposed algorithm
is successful. Comparison of the proposed algorithm and the K-means cl
ustering method is provided.