Scalable Vector Graphics — vector graphics — is essentially distinct from JPG. Whereas JPG saves photos as a pixel grid, SVG saves graphics as mathematical definitions of geometric shapes. Which means SVG files work at every size — from a tiny icon to a large banner — with no quality loss.
Converting JPG to SVG is a process referred to as raster to vector conversion, and it is very beneficial for icons and clean graphics.
Prior to converting JPG to SVG, it is important to understand what the conversion actually does. JPG files are a pixel-based image — a static grid of pixels. SVG files are a scalable image — a collection of paths that a browser uses to draw the artwork.
The conversion works great for simple images with distinct shapes and few colors — logos, icons, silhouettes and flat artwork. Results are poor for photographic images with thousands of colors.
For quality conversion, Adobe Illustrator's Image Trace tool offers the most control. Load the image in Illustrator, select the graphic, open the Image Trace dialog and choose an read more relevant setting.
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