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Copyright (c) 2004 Stuart Coyle
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Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
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This software is provided "as is," without warranty of any kind,
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express or implied. In no event shall the author or contributors
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be held liable for any damages arising in any way from the use of
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute
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it freely, subject to the following restrictions:
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1. Redistributions of source code must retain the above copyright
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notice, disclaimer, and this list of conditions.
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2. Redistributions in binary form must reproduce the above copyright
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notice, disclaimer, and this list of conditions in the documenta-
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tion and/or other materials provided with the distribution.
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3. All advertising materials mentioning features or use of this
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software must display the following acknowledgment:
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This product includes software developed by Greg Roelofs
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and contributors for the book, "PNG: The Definitive Guide,"
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published by O'Reilly and Associates.
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NeuQuant Neural-Net Quantization Algorithm
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Copyright (c) 1994 Anthony Dekker
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NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994.
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See "Kohonen neural networks for optimal colour quantization"
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in "Network: Computation in Neural Systems" Vol. 5 (1994) pp 351-367.
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for a discussion of the algorithm.
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See also http://members.ozemail.com.au/~dekker/NEUQUANT.HTML
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Any party obtaining a copy of these files from the author, directly or
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indirectly, is granted, free of charge, a full and unrestricted irrevocable,
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world-wide, paid up, royalty-free, nonexclusive right and license to deal
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in this software and documentation files (the "Software"), including without
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limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons who receive
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copies from any such party to do so, with the only requirement being
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that this copyright notice remain intact.
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