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Figure 12
Illustration of histogram equalization. An underexposed night photograph (top) and its histogram-equalized version (bottom) (the pictures were taken by the first author). Although the HE picture is unrealistic (i.e. it gives a false impression that it is daytime) it does shows significantly more detail than the original image.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
Volume 71| Part 3| February 2015| Pages 646-666
doi:10.1107/S1399004714028132
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