The process of transforming a pixel-based image (ex. JPEG and PNG files) into a vector-based one (SVG, EPS, and EMF files) with every pixel handled as a line or shape is known as "vectorizing." Text, symbols, and other minor features are included.
An array or map of bits within a rectangular grid of pixels or dots describes a raster (or bitmap) image. Lines, forms, and other graphic picture components are described by vector images, which are saved in a format that includes geometric formulas for producing the image elements.