Aug 07 2010

What is a vector image? What is a raster image?

Category: Graphic Design

Answer:

Vector images are created with a series of lines and curves. The lines and curves use a mathematical formula, through the help of image software like Adobe Illustrator, which allows scaling without loss of image quality. Typical vector formats include EPS, WMF, AI, CDR, DXF, SVG, and PLT.

Raster images are created using a series of dots or pixels. Each pixel is given a value based on the RGB color system and created for use on a digital display. These low resolution images are perfect for use on web pages, due to size, and will often come in these formats: JPG, PNG, GIF, BMP, and TIFF. The resolution for images like these is expressed in DPI or dots per inch.


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