Abstract
Multilevel segmentation in images clusters pixels depends on the total thresholds and intensity values. To find optimal thresholds and to maximize the objective function, entails a lot of computational power and memory. In this work gray-level segmentation is proposed by Otsu-based Harmonic Search Optimization Algorithm (HSOA) algorithm to resolve such drawbacks . The HS algorithm is employed to explore the optimum values of threshold by Otsu’s maximization objective function. Its effectiveness based on HS technique has been applied on 5 standard images with a size of 512 × 512. The images are associated with Gaussian (GN) and Salt-and-Pepper (SAP) noise. The measureable examination is performed with the parameters of between-class variance (Objective Function) value and quality measures, such as Root Mean Square Error (RMSE) and Peak Signal-to-Noise Ratio (PSNR). The experimental procedure is employed with MATLAB software. Experimental outcomes of Otsu-based harmony search offers an optimal solution to multilevel thresholding problem for the GN and SAP noise applied images with improved objective function and faster convergence.
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Suresh, K., Sakthi, U. (2018). Robust Multi-thresholding in Noisy Grayscale Images Using Otsu’s Function and Harmony Search Optimization Algorithm. In: Kalam, A., Das, S., Sharma, K. (eds) Advances in Electronics, Communication and Computing. Lecture Notes in Electrical Engineering, vol 443. Springer, Singapore. https://doi.org/10.1007/978-981-10-4765-7_52
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DOI: https://doi.org/10.1007/978-981-10-4765-7_52
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