Gray-level transformations for interactive image enhancement
Rafael C. Gonzalez, B. A. Fittes · NASA STI/Recon Technical Report A · 1975
A gray-level transformation method suitable for interactive image enhancement was presented. It is shown that the well-known histogram equalization approach is a special case of this method. A technique for improving the uniformity of a histogram is also developed. Experimental results which illustrate the capabilities of both algorithms are described. Two proposals for implementing gray-level transformations in a real-time interactive image enhancement system are also presented.