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Performance metrics for image contrast

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3 Author(s)
Tripathi, A.K. ; Dept. of Electron. & Electr., Commun. Engineeringline, Indian Inst. of Technol., Kharagpur, India ; Mukhopadhyay, S. ; Dhara, A.K.

In this paper, contrast level of the images are quantified by the two proposed metrics. These metrics are Histogram Flatness Measure (HFM) and Histogram Spread (HS). Computation of these metrics is based on the shape of the histogram. Extensive simulation results reveal that HS is more meaningful than HFM. Low contrast images have low HS value, while high contrast images have higher value of HS. Thus HS metric can be used to distinguish between the images having different contrast level. Accuracy of the metric is also verified for natural and medical images. This metric has broad applications in image retrieval, image database management, visualization, rendering and image classification.

Published in:

Image Information Processing (ICIIP), 2011 International Conference on

Date of Conference:

3-5 Nov. 2011