> GraphicsMagick Authors

The following people have contributed substantially to the development of GraphicsMagick. Please let us know if an author is missing, or a significant contribution was made and not recorded.

GraphicsMagick Group Member Authors

Mike Chiarappa

                Created and maintains the Borland C++ Builder 6.0 build
                environment for GraphicsMagick.

Bob Friesenhahn

                Principal maintainer of GraphicsMagick. Author of
                Magick++ (C++ API to ImageMagick and GraphicsMagick).
                Author of module loader facility, automatic file
                identification (magic) support, Unix/Cygwin/MinGW
                configure/make facility, Windows setup.exe style
                installer, WMF renderer, C API documentation formatter,
                and the C, C++, and Perl test suites used by ImageMagick
                and GraphicsMagick.

William Radcliffe

                Author of the VisualMagick project configure facility for
                Visual C++. Author of FlashPix module. Author of the
                ImageMagickObject COM object for Windows. Author of the
                EMF, XTRN, and META coders. Significant contributions to
                the MSL, JPEG, TIFF, SVG, and URL coders. Authored
                "process" module support. Wrote the micro-timer facility
                used by 'identify'. Ported module loader support to
                Windows. Significantly improved polygon rendering
                performance.

Glenn Randers-Pehrson

                Contributed significantly to the utilities, including
                writing the 'gm' utility wrapper. Authored support for
                JNG, MNG, and PNG formats. Provided significant support
                for the BMP format. Significant improvements to the
                documentation, including creating a documentation
                authoring environment based on the <imdoc> format.

Leonard Rosenthol

                Authored the 'conjure' utility and associated MSL
                execution environment. Provided MacOS support. Authored
                the CLIPBOARD, XCF, and PSD coders. Postscript and PDF
                expertise. Significant drawing enhancements including
                support for dash patterns, linecap stroking, clipping
                masks and a mask image.

Lars Ruben Skyum

                Contributed the -clippath functionality, added
                -define support, improved color profile support,
                and re-wrote the PS3 coder.

Non-Member Authors

John Cristy

                Creator, principal author, and principal maintainer of
                ImageMagick, from which GraphicsMagick is originally
                derived (from ImageMagick 5.5.2).  Also the author of
                the Wand API to ImageMagick which is incorporated as
                a stand-alone library by GraphicsMagick.

Jaroslav Fojtik

                Authored the ART, CUT, MATLAB, TOPOL, and WPG
                coder modules.

Kelly Bergougnoux

                Authored the Cineon coder.

Christopher R. Hawks

                Authored the PALM coder.

Francis J. Franklin

                Ported the WMF coder to the libwmf 0.2 API.

Rick Mabry

                Contributed code to support filling drawn objects using a
                pattern image.

Nathan Brown

                Original author of the JP2 coder.

Kyle Shorter

                Original author of PerlMagick. Original author of the
                LOCALE coder.

Markus Friedl

                Original author of Base64 encode/decode sources.

David Harr

                Contributed (with Leonard Rosenthol) dash pattern,
                linecap stroking algorithm, and minor rendering
                improvements.

Troy Edwards

                Authored the source RPM spec file for GraphicsMagick.

Milan Votava

                Contributed support for Wireless BitMap, used in WAP -
                Wireless Access Protocol.

Additional Acknowledgements

David Pensak, E. I. du Pont de Nemours and Company

                For providing the computing environment that made
                developing ImageMagick possible.

Alexander Zimmermann

                Responsible for the ImageMagick Linux binary
                distributions for many years. His efforts are very much
                appreciated.

Paul Heckbert, Carnegie Mellon University

                Image resizing is based on Paul Heckbert's Zoom program.

Paul Raveling, USC Information Sciences Institute

                The spatial subdivision color reduction algorithm is
                based on his Img software.

Michael Halle, Spatial Imaging Group at MIT

                For the initial implementation of Alan Paeth's image
                rotation algorithm.

Peder Langlo, Hewlett Packard

                Made hundreds of suggestions and bug reports. Without
                Peder, this software would not be nearly as useful as it
                is today.

Rod Bogart and John W. Peterson, University of Utah

                Image compositing is loosely based on rlecomp of the
                Utah Raster Toolkit.

Alvy Ray Smith and Eric Ray Lyons

                HWB color transform and algorithm.

Thomas R Crimmins

                Inventor of the eight hull algorithm used for speckle
                reduction.

Copyright © GraphicsMagick Group 2002, 2003, 2004