Simplified Teaching And Understanding Of Histogram Equalization In Digital Image Processing
Shanmugalingam Easwaran · 2020
Histogram equalization is a widely used contrast-enhancement technique in image processing.This subtopic is included in almost all image-processing courses and textbooks.It is however one of the difficult image processing techniques to fully understand, especially for those encountering it for the first time.This is because of the complex nature of the mathematics used in standard and other textbooks in introducing histogram equalization.To alleviate these problems and to provide to those wanting to understand this topic with an insight into the process and operations involved, the author developed a simpler teaching/ learning framework and background (methodology), a simple and clear theory and the necessary derived equations, a clear histogram equalization process, and a MATLAB GUIDE ® based GUI tool for visual demonstrations.Because of these developments, it was possible to easily explain and teach histogram equalization clearly at a very high level of rigor than was otherwise possible.