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This proposed method has three steps: (i) initially the breast region is segmented from the mammogram images by removing the film artifacts, (ii) the pectoral muscle region is identified and excluded from the breast region using a novel adaptive thresholding method, and (iii) an Improved Watershed Segmentation (IWS) is applied to segment the breast profile, and each region is enhanced with simple histogram equalization. The segmentation is performed in order to achieve adaptive contrast enhancement. The performance of this proposed pectoral removal method is analyzed with two measures: Hausdorff Distance (HD) and Mean of Absolute Error Distance (MAED), and the proposed contrast enhancement approach is been analyzed with the five diverse parameters along with the classification accuracy. The experiments and results show the potential performance of our proposed algorithm over the existing approaches with optimum results on all the performance measure and the classification performance is been evaluated with a hybrid neural network, our proposed method proves the better performance with the achievement of 92% accuracy. <\/jats:p>","DOI":"10.1142\/s0219467813500071","type":"journal-article","created":{"date-parts":[[2013,4,19]],"date-time":"2013-04-19T08:11:45Z","timestamp":1366359105000},"page":"1350007","source":"Crossref","is-referenced-by-count":6,"title":["REGION-BASED CONTRAST ENHANCEMENT OF DIGITAL MAMMOGRAMS USING AN IMPROVED WATERSHED SEGMENTATION"],"prefix":"10.1142","volume":"13","author":[{"given":"ABUBACKER KAJA","family":"MOHIDEEN","sequence":"first","affiliation":[{"name":"Department of Applied Mathematics and Computational Sciences, PSG College of Technology, Coimbatore 641004, Tamil Nadu, India"}]},{"given":"KUTTIANNAN","family":"THANGAVEL","sequence":"additional","affiliation":[{"name":"Department of Computer Science, Periyar University, Salem 636011, Tamil Nadu, India"}]}],"member":"219","published-online":{"date-parts":[[2013,5,3]]},"reference":[{"key":"rf1","first-page":"31","volume":"5","author":"Thangavel K.","journal-title":"Int. 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