Vectorization (image tracing)
- 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 method. Many different algorithms exist, and each gives different results, as vector representations are more abstract than pixels.
A photograph in JPEG format, 25 KB
The photograph at left vectorized with RaveGrid, 1.64 MB
Same photograph vectorized with AutoTrace in the Delineate GUI, 677 KB
Same photograph vectorized with Scan2CAD, 340 KB
- Image scanner
- CAD data exchange
- Comparison of raster to vector conversion software
- Optical character recognition
- Feature detection (computer vision)
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