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XML Companion, The, Third Edition by Neil Bradley

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R
raster

Method of representing images electronically using computer memory to create a grid, with one or more bits representing a pixel (one bit allows black and white pictures, four bits allow 16 colours, or shades of grey, and 16 bits allow over 65, 000 colours). The resolution (pixels per inch) is determined at the time of creation, and the resulting picture is not usually amenable to scaling or rendering at a different resolution. Compression schemes include JPEG and CCITT Group IV. The alternative representation scheme, designed to overcome some of the limitations of the raster technique, is the vector scheme.

Raster Image Processor
See [RIP (Raster Image Processor) [pronounced 'rip'tide] A program or computer chip that converts vector ...

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