Abstract
This paper introduces a powerful image contrast enhancement algorithm that is developed based on the energy curve equalization technique. Instead of the histogram, an energy curve is used for considering spatial contextual information in the image. This is Improved Image Enhancement of natural images with median mean-based sub-image clipped histogram equalization. The algorithm consists of the following steps, first, obtaining the energy curve, secondly, calculating median and mean intensity values of the image, third, the energy curve is clipped using a threshold level which is its mean occupancy, and fourth, the clipped energy curve is divided into two halves based on median and then further partitioned into four subparts based on mean intensity values, all these four portions are equalized and then combined to form an enhanced image. This promotes natural enhancement and levies control over the rate of enhancement. The simulation conveys that the proposed method shows supremacy over the other previously existing methods. This shows an increase in entropy which is the information content held in the resultant image.
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Srikanth, R., Sowmya, K.L., Anjana, S., Vamshi, G., Reddy, A.R.M. (2022). Improved Image Enhancement of Natural Images with Median Mean-Based Sub-Image Clipped Histogram Equalization. In: Ranganathan, G., Fernando, X., Shi, F., El Allioui, Y. (eds) Soft Computing for Security Applications . Advances in Intelligent Systems and Computing, vol 1397. Springer, Singapore. https://doi.org/10.1007/978-981-16-5301-8_61
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DOI: https://doi.org/10.1007/978-981-16-5301-8_61
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