Black area selector

Project must be done with c#. Function needed which returns all black areas outlines as graphicsPath [login to view URL] gets as parameter Image object which type can by indexed or nonindex type (jpg,gif,bmp) image is b/w. introduction of function must be public [login to view URL][] findBlackAreas([login to view URL] img, int minPixelsInArea) second parameters tells minimum black area size what will be included to returned array.