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Abbreviated Journal Title

J. Electron. Imaging

Keywords

Engineering; Electrical & Electronic; Optics; Imaging Science; Photographic Technology

Abstract

We describe a method of enhancing color images by applying histogram equalization to the saturation component in the color difference (C-Y) color space. When histogram equalization is applied to the saturation component of a 24-bit image, the transform often leads to red, green, and blue components that exceed the realizable RGB intensities. The histogram equalization algorithm presented reduces this problem by taking into account the relationship that exists between luminance and saturation and how the luminance value limits the range of possible saturations. This method also retains a more uniform distribution of color saturation once the components are transformed back into the RGB space. This is important for images that contain high-luminance, low-saturation features.

Journal Title

Journal of Electronic Imaging

Volume

4

Issue/Number

1

Publication Date

1-1-1995

Document Type

Article

Language

English

First Page

15

Last Page

22

WOS Identifier

WOS:A1995QV37600003

ISSN

1017-9909

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