WinTopo a tool to explain the contents of a raster image and convert it to a vector.
The main difference between one and the other around the first pixel of the second formed by an infinity of geometric objects, such as lines and arcs that are drawn to the default coordinates are made.
When an image into a vector in a program dedicated to it within itself and can change the line.
TIF, any JPG, PNG, GIF and BMP: Supported image formats are not followed.
You can also rotate WinTopo photographic retouching and image functions that will allow you to turn on; Brightness, contrast and gamma adjustment; Delete a defined area, etc.