Bezier curves images.
A vector image is not composed of pixels as bitmap images. Its construction consists of a so-called Iron Wire or path structure. In fact, to draw a vector image, you indicate a starting point and an arrival point. Then the application trace a straight or a curve line between these two points.
This technique, which lets you play all forms (used in 3D) was developed by Pierre Etienne Bézier between 1965 and 1970 for the production and manufacture of car bodies Renault (These are the Bezier curves).
Each form built by a Bezier curve is given an outline color or background. Many color modes can be used as CMYK, RGB or Spot Colors. The characteristic of this type of image is that can be resized in any scale without any loss of quality.
IMPORTANT: The machine who will print your vector image must be PostScript-compatible. If it is not the case, you can always export your vector image to a bitmap image.