NIH Image MLx Home | (buttons) |

NIH image is a widely used, public domain image processing program for the Macintosh platform. It is written and maintained by Wayne Rasband at NIH, Bethesda, MD.

NIH Image is a streamlined convenient package for numerical analysis and examination of images. Even short movies (higher performance than QuickTime) can be displayed conveniently. Morphological operations, convenient segmenting, image arithmetic, histograms, scaling and measurement are all provided. Image handles 8 bit images only. A macro capability is available for expanding the menus.

NIH Image has a large user base and an active e-mail forum: nih-image@soils.umn.edu. John Ladwig at the University of Minnesota runs this list: "...getting added to or dropped from the list should be handled by sending the appropriate commands (unsubscribe nih-image being most likely) in the body of a message to listproc@soils.umn.edu. If you have trouble with a command, send the word "help" as the body of a message to listproc@soils.umn.edu. If you *still* have trouble, send mail to nih-image-request@soils.umn.edu or owner-nih-image@soils.umn.edu and I'll help you out."

NIH Image supports a variety of functions:

NIH Image keeps its images as 8 bit bytes. This is a major difference from MacLispix, which supports a number of different data types.

Web sites for NIH Image:


By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to micro@nist.gov

  1. Tutorial Article (from MAS Journal)
  2. NIH Image Home Page
  3. Scion Image PC look-alike of NIH Image (No longer available.)

Older versions & Clones of NIH Image.