I am new to eggbot and have produced many designs and texts on eggs and ping pong balls. Now many are asking me to reproduce portrait pictures on eggs. I have taken photos and converted them to both grey scale and b&w portraits on painting pro and later copied them to inkscape and made svg files. However the portraits are not coming out as the same. Large black areas often come out as black outlined areas rather than compeltely black. Is there a special way or a course to take to know how to convert jpg files to really usable svg files that can be used on the eggbot?