The newest release of the National Institutes of Health Image program fixed a common problem that plagued earlier releases. NIH Image is an image processing and analysis program developed by the National Institute of Health (NIH). NIH features include image editing and analyzing, compatibility with scanning and publishing programs, and support of functions such as density profiling and median filtering. NIH Image can be enhanced through macro languages, plug-in modules, and source code. The manual, some examples, a tutorial, and other documentation are available.