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(c)1994-1997, ThomasG.Lane. Thisfileispart ofthe Independent JPEGGroups software.
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distribution containsthesixth public release ofthe Independent JPEGGroups freeJPEG software.
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arewelcome toredistribute thissoftware andtouse itfor any purpose, subjecttothe conditions
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LEGAL ISSUES, below.
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ISSUES
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In
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legalese:
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The
authors makeNOWARRANTY orrepresentation, eitherexpress orimplied, withrespect tothis
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Unix configuration scriptconfigure wasproduced withGNU Autoconf. Itis copyright bythe Free
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It
appears thatthearithmetic codingoptionofthe JPEG speciscovered bypatents ownedbyIBM,
 AT
&T, and Mitsubishi. Hencearithmetic codingcannot legallybeused without obtaining oneormore
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Forthis reason, supportforarithmetic codinghasbeen removed fromthefree JPEG software.
 (Since
arithmetic codingprovides onlyamarginal gainover theunpatented Huffmanmode,itis unlikely
 240