Compression refers to any algorithm applied to a digital image to reduce its file size, enabling swifter transfer across a network the preservation of storage space. Compression techniques
are distinguished by whether they remove detail and colour from the image. Lossless techniques compress image data without removing detail; lossy techniques compress images by removing detail.
See also: Lossless compression; Lossy compression.
Reference: Australian Museums and Galleries Online [http://archive.amol.org.au/capture/course/glossary.html]
Image compression
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