DevIL is a programmers library to develop applications
Editor: Developers Image Library (Devil) is a programmers library to develop applications with very powerful image loading capabilities, yet is easy for a developer to learn and use. Ultimate control of images is left to the developer, so unnecessary conversions, etc. are not performed. DevIL utilizes a simple, yet powerful, syntax. DevIL can load, save, convert, manipulate, filter and display a wide variety of image formats.

DevIL currently supports the following APIs for display: OpenGL, Windows GDI, SDL, DirectX and Allegro. Compilers that can compile DevIL or use it include Djgpp, MSVC++, Linux gcc, Delphi, Visual Basic, Power Basic and Dev-C++.

Supports loading of:
# Windows Bitmap - .bmp
# Dr. Halo - .cut
# Multi-PCX - .dcx
# Dicom - .dicom, .dcm
# DirectDraw Surface - .dds
# OpenEXR - .exr
# Flexible Image Transport System - .fits, .fit
# Heavy Metal: FAKK 2 - .ftx
# etc.

Supports saving of:
# Windows Bitmap - .bmp
# DirectDraw Surface - .dds
# OpenEXR - .exr
# C-style Header - .h
# Radiance High Dynamic - .hdr
# Jpeg - .jpg
# Jpeg 2000 - .jp2
# etc.

Library Features:
# Portable, supports Windows, Mac OS X and *nix.
# OpenGL-style syntax.
# Use of image names instead of pointers.
# Full Unicode support for filenames.
# 64-bit compatibility.
# Loading from files, file streams or memory lumps.
# Direct access to data through ilGetData() and ilSetData().
# Support for luminance, rgb(a), bgr(a) and colour-indexed images.
# Support for 3 different numbers of bits per channel.
# etc. you can free download Developer's Image Library 1.7.8 now.