Abstract: Breast Cancer is one among the dreadful cancer diseases and the second-leading cause of cancer deaths, which are mostly seen in middle-aged women between ages of 35 and 55. According to the estimation done in 2016 by American Cancer Society at U.S, 1,685,210 new cancer cases were diagnosed with breast cancer and 595,690 women have died due to breast cancer. Mammography has been found as an effective imaging modality for detecting and diagnosing breast cancer. Mammograms often feature vagueness and inhomogeneity in its background compared to other images. Hence different enhancement techniques were developed to improve the overall visibility of mammograms, in order to facilitate early detection of breast cancer. This paper discusses few novel methods developed in enhancing mammogram images.
Keywords: contrast, lesion, ROI, mass, calcifications, mammogram.