to change a graphic, for example one in the form of a bitmap (= a computer image formed from small units called pixels), to a vector image, which can be made into any size without its quality being affected; to be changed in this way

This software allows you to scan and vectorize logos. 这个软件可让你扫描和矢量化标志。

I began with line drawings which I then put into a computer where they were vectorised to become more dynamic.

Many of these freely available images will vectorize well.