Alan W. Paeth

Alan W. Paeth (11 May 1956 - 3 June 2018) was a Canadian computer scientist and author.

Life and education
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.

Career
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.

The Paeth Filter in PNG images is named after his work Paeth Filter

Selected publications
His notable books include:


 * Graphics Gems V
 * Algorithms for fast color correction
 * The IM raster toolkit : design, implementation and use
 * Linear models of reflective colour