Abstract: Method of segmenting mammography image comprising steps of: scanning along row from outermost pixel towards the breast and comparing grayscale gradient across adjacent pixels until a significant gradient is determined; confirming that variation in gradient indicates a first true boundary pixel by ascertaining gradient across subsequent pixels is still significant; iteratively repeating steps of: (i) scanning next adjacent line in vicinity of boundary pixel, and (ii) determining the boundary pixel of adjacent line by variation in grayscale intensity gradient along row (iii) until failure to find subsequent pixel occurs and (iv) attempting scanning horizontally by repeating steps (i) and (ii), and, if attempt fails, extrapolating to edge of image or to first line, ?until having determined boundary around the feature to one side of first line; repeating steps (i) to (iv) on other side of line until boundary of breast on the other side of the line is determined.

Abstract: Method of segmenting mammography image comprising steps of: scanning along row from outermost pixel towards the breast and comparing grayscale gradient across adjacent pixels until a significant gradient is determined; confirming that variation in gradient indicates a first true boundary pixel by ascertaining gradient across subsequent pixels is still significant; iteratively repeating steps of: (i) scanning next adjacent line in vicinity of boundary pixel, and (ii) determining the boundary pixel of adjacent line by variation in grayscale intensity gradient along row (iii) until failure to find subsequent pixel occurs and (iv) attempting scanning horizontally by repeating steps (i) and (ii), and, if attempt fails, extrapolating to edge of image or to first line, ?until having determined boundary around the feature to one side of first line; repeating steps (i) to (iv) on other side of line until boundary of breast on the other side of the line is determined.