Vector-based graphics are defined by mathematical equations and are scalable to any size, meaning that they can be stretched or shrunken and still maintain all quality. They are constructed by lines, shapes, and curves (include icons, illustrations, t-shirt art, etc.). Pixel-based images, on the other hand, are constructed of pixels, and produce continuous tone images (unlimited ranch of colors and shades of grey). They are resolution dependent.
What resolution is necessary to print raster images?
To render a raster image accurately, a high end printer needs a resolution of 300 dpi (dots/inch)
What resolution is necessary to display raster images on the internet?
On-screen, raster images typically need a maximum of 72 dpi (a lot smaller, eh?)
Happy Friday! :) Half-way through October already?!
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