Dynamic histogram equalization for high dynamic range images

Details Dynamic histogram equalization for high dynamic range images Dynamic histogram equalization for high dynamic range images

2005-02-01

2005-02-01

Couso, Yon J. (Department: 2625)

Image analysis

Histogram processing

With a gray-level transformation

C382S298000

Reexamination Certificate

active

06850642

ABSTRACT:
Dynamic range equalization by histogram modification. A histogram is analyzed to determine locations of peaks. A mapping function is formed which relates to the locations of the peaks in a histogram. That mapping function may have areas of highest slope near the peaks. The mapping function is used to form a compressed histogram, which has the required number of levels to display on a display device.

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Yu et al. Histogram-shape preserving algorithm for image enchancement, IEEE Int'l Symposium on Circuits and Systems, May 03-06, 1993, vol. 1, p 407-410.

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