@otuncelli sorry to bother you, but you did open a whole new universe to me with ImageMagick and now I am looking for ways to process these images in to SVG and once again people are mentioning ImageMagick and something called Potrace Batch auto trace black and white images .
Do you know something about this program and can it be used to get SVG that look the same as PNG (white interior, transparent around). I tried all kinds of settings in Illustrator and it gives me either semi white, no white or extra block around.
I installed Potrace but it opens as run window so i guess once again I need come code to un inside.