Method and apparatus for detecting a contour of an object within an image is provided. A user interface is used to select first and second points within the object. A processor detects first and second subcontours based on the first and second points, respectively; and the first and second subcontours are based on detected edges. The detected edges are representative of non-uniformities within the image. The processor defines subcontours around each of the points, and the subcontours are combined into a contour.