FreeImage
Open Source library project for developers who would like to support popular graphics image formats like PNG, BMP, JPEG, TIFF.
url: freeimage.sourceforge.net/
libwmf
A library to convert microsoft WMF file format to something useful, currently bindings exist to convert them to onscreen X graphics, to the GIF and to FIG.
url: www.csn.ul.ie/~caolan/docs/libwmf.html
MNG
Is the animation extension to the popular PNG image-format. It brings the ease of GIF animations, WITHOUT the patent licensing issues. Libmng is the MNG library (free software by Gerard Juyn).
url: www.libmng.com
paintlib
Portable library of image file decoders. Supports PNG, TGA, TIFF, JPEG/JFIF, BMP, and Mac PICT formats. Full C++ source provided.
url: www.paintlib.de/paintlib/
Puntoexe software
Free MFC based source code for jpeg and dib codecs, twain management and image analysis
url: www.puntoexe.com/develop.htm
Victor Image Processing Library
Image toolkit for DOS, Win16, & Win32 supporting TIFF, LZW, PackBits, GIF, JPEG, lossy, PCX, PNG, TGA, Targa, BMP, DIB, BIF, raw data, bitmap, TWAIN, scanning, image processing, and printing. (Source code is available, but this is a commercial library.)
url: www.catenary.com/
