Reconstruction-by-Dilation and Top-Hat Algorithms for Contrast Enhancement and Segmentation of Microcalcifications in Digital Mammograms
Claudia C. Díaz, Mauricio Carbajal, Luis Manuel Montaño, Óscar Rosas-Ortiz, Sergio A. Tomas Velazquez, O. G. Miranda · AIP conference proceedings · 2007
I present some results of contrast enhancement and segmentation of microcalcifications in digital mammograms. These mammograms were obtained from MIAS‐minidatabase and using a CR to digitize images. White‐top‐hat and black‐top‐hat transformations were used to improve the contrast of images, while reconstruction‐by‐dilation algorithm was used to emphasize the microcalcifications over the tissues. Segmentation was done using different gradient matrices. These algorithms intended to show some details which were not evident in original images.