Vectorization (computer graphics)

In computer graphics, vectorization refers to the process of converting raster graphics into vector graphics.

Popular applications:
 * In computer-aided design (CAD) drawings (blueprints etc.) are scanned, vectorized and written as CAD files in a process called paper-to-CAD conversion or drawing conversion.
 * In geographic information systems (GIS) satellite or aerial images are vectorized to create maps.
 * In graphic design and photography, graphics can be vectorized for easier usage and resizing.

Unlike the opposite process rasterization, vectorization is not well defined, meaning there is not a single correct answer. Many different algorithms exist, and each gives different results. This is because vector representations are more abstract than pixels.