Previously, I referred to the technique that sets the black-and-white points of an image to their respective maximum values as “histogram equalization.” That was incorrect. This technique should be called “histogram stretching” or “normalization.”
I’ve corrected all the articles and documentation references to use either “histogram stretching” or “normalization” when talking about this topic.
“Histogram normalization” is a wrong term for what I’ve been explaining, but it is also a (different) image processing technique. You can learn more about both terms on Wikipedia.
Thank you reader, who pointed this out! Feedback like this helps me improve the quality of this website and its content. I appreciate it.
Dmitri Apr 11, ‘25