Glossary
Terms that appear in italics are explained elsewhere in the glossary.
algorithm
A mathematically generated pattern that determines the level of complexity in the 8 x 8 pixel cells comprising a JPEG image.
anti-aliased
When a bitmap shape (such as text) is anti-aliased it acquires a slight falling-off of tone around the edges. This enables it to blend in visually with another image much more than would otherwise be possible.
artifacting
When a JPEG algorithm is set too low, areas that should appear as flat color in one part of an 8 x 8 pixel cell can be distorted by the detail in another.
bit depth
Image complexity, or depth, is described in terms of bits. A “bit” of information is a single unit of binary information, which can either ...
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