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→Application of binary scaling techniques: clarification/correction: the range of values must be limited to avoid too many leading zeros (which can be regarded as a loss of precision) |
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Binary scaling is currently used in the [[Discrete cosine transform|DCT]] used to compress [[JPEG]] images in utilities such as [[GIMP]].
Although floating point has taken over to a large degree, where speed and extra accuracy are required, binary scaling works on simpler hardware and is more accurate when the range of values is known in advance and is sufficiently limited. This is because all the bits in a binary scaled integer are used for the precision (though there may be leading zeros if the range of values is large) of the value whereas in floating point, some bits are used to define the scaling.
==See also==
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