MAHEM: a multiprocessor engine for fast contrast-limited adaptive histogram equalization
James P. Ericksen, Stephen M. Pizer, John D. Austin · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1990
variant of AHE, theresult value of a pixel is computed as a weighted average of itsinitial value and its rank within its contextual region; the amount ofcontrast in that area of the image determines the weighting. CLAHEhas been found useful in enhancing images from a variety of imagingmodalities, including Computed Tomography (CT; see Figure 1), MagneticResonance Imaging (MRI) ,