Color image enhancement using correlated intensity and saturation adjustments

Publication Type:
Journal Article
Citation:
Journal of Modern Optics, 2015, 62 (13), pp. 1037 - 1047
Issue Date:
2015-07-29
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© 2015 Taylor & Francis. The enhancement of digital color images needs to be performed in accordance with human perception in terms of hue, saturation, and intensity attributes instead of improving only the contrast. Two approaches were developed in this work, which use a correlated adjustment mechanism incorporating intensity and saturation attributes and provide contrast and saturation enhancements together with brightness consistency. In these algorithms, object edges are emphasized for contrast, and image saturation is increased by boosting the salient regions. Furthermore, intensity and saturation enhancements are carried out in a lattice structure where adjustments are made inter-related for better performance. Experiments were conducted with benchmark and real-world images. Results had shown improvements in image qualities both qualitatively and quantitatively.
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