Alan W. Paeth[ pronunciation? ] (11 May 1956 - 3 June 2018) was a Canadian computer scientist and author.
Alan William Paeth was born on May 11, 1956, in Seattle, Washington. He obtained a Bachelor's degree in Computer Science from Caltech and his PhD at the University of Waterloo in 1994.  His doctoral advisor was William B. Cowan and his doctoral dissertation was on Linear Models of Reflective Colour.  He married Catherine Anne Person in 1983; she predeceased him in 2008. 
He died in Kelowna, British Columbia, on June 3, 2018. 
He was professor of computer science at Okanagan University in British Columbia. 
He made major research contributions to computer graphics and has made seminal contributions in the field of Portable Network Graphics including Shear mapping.
His notable books include:  
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