Friday, 4 March 2011

Raster and Vector again

I screen grabbed  2 picutres to demontrate the difference of Raster and Vector images.

Raster Image is also known as Bitmap image and uses a grid of individual pixels that compose the entire picture, each pixel can be a different colour or shade.
Vector Images are composed of paths that use mathematical relationships between points and the paths connecting them to describe an image. Put basically:
Bitmap images usually require higher resolutions and an “anti-aliasing” filter for a smoother appearance. Vector-based graphics on the other hand are mathematically described and appear smooth at any size or resolution. Because of this, Vector based images are of a much higher quality than Raster but require a VERY large amount of space.
Vector:


Raster:


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