A Review of various Global Contrast Enhancement Techniques for still Images using Histogram Modification Framework
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International Journal of Engineering Trends and Technology (IJETT) | 
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| © 2013 by IJETT Journal | ||
| Volume-4 Issue-4 |
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| Year of Publication : 2013 | ||
| Authors : V. Rajamani , P.Babu , S. Jaiganesh |
Citation
V. Rajamani , P.Babu , S. Jaiganesh. "A Review of various Global Contrast Enhancement Techniques for still Images using Histogram Modification Framework". International Journal of Engineering Trends and Technology (IJETT). V4(4):1045-1048 Apr 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.
Abstract
This paper presents the evaluation and comparison of some popular image contrast enhancement algorithms using Histogram modificat ion framework. Histogram based techniques is one of the important digital image processing techniques which can be used for image enhancement. Histogram based techniques is mainly based on equalizing the histogram of the image and increasing the dynamic ra nge corresponding to the image. Histogram equalization is widely used in different ways to perform contrast enhancement in images. As a result, such image creates side - effects such as washed out appearance and false contouring due to the significant change in brightness. To overcome this weakness, we proposed a new method based on Histogram modification framework that works well with still images, and it enhances the images without making any loss in image details.
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Keywords
Contrast enhancement, Histogram equalization, Dynamic histogram specification, Histogram modification, Global Contrast enhancement