{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T20:53:31Z","timestamp":1771275211182,"version":"3.50.1"},"reference-count":22,"publisher":"World Scientific Pub Co Pte Ltd","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Image Grap."],"published-print":{"date-parts":[[2023,3]]},"abstract":"<jats:p> Image segmentation is imperative for image processing applications. Thresholding technique is the easiest way of partitioning an image into different regions. Mostly, entropy-based threshold selection methods are used for multilevel thresholding. However, these methods suffer from their dependencies on spatial distribution of gray values. To solve this issue, a novel segmentation error minimization (SEM)-based method for multilevel optimal threshold selection using opposition equilibrium optimizer (OEO) is suggested. In this contribution, a new segmentation score (SS) (objective function) is derived while minimizing the segmentation error function. Our proposal is explicitly free from gray level spatial distribution of an image. Optimal threshold values are achieved by maximizing the SS (fitness value) using OEO.\u00a0The key to success is the maximization of score among classes, ensuring the sharpening of the shred boundary between classes, leading to an improved threshold selection method. It is empirically demonstrated how the optimal threshold selection is made. Experimental results are presented using standard test images. Standard measures like PSNR, SSIM and FSIM are used for validation The results are compared with state-of-the-art entropy-based technique. Our method performs well both qualitatively and quantitatively. The suggested technique would be useful for biomedical image segmentation. <\/jats:p>","DOI":"10.1142\/s0219467823500213","type":"journal-article","created":{"date-parts":[[2022,4,5]],"date-time":"2022-04-05T10:44:40Z","timestamp":1649155480000},"source":"Crossref","is-referenced-by-count":6,"title":["A Novel Segmentation Error Minimization-Based Method for Multilevel Optimal Threshold Selection Using Opposition Equilibrium Optimizer"],"prefix":"10.1142","volume":"23","author":[{"given":"Gyanesh","family":"Das","sequence":"first","affiliation":[{"name":"Department of Electronics and Telecom. Engineering, VSS University of Technology, Burla 768018, Odisha, India"}]},{"given":"Rutuparna","family":"Panda","sequence":"additional","affiliation":[{"name":"Department of Electronics and Telecom. Engineering, VSS University of Technology, Burla 768018, Odisha, India"}]},{"given":"Leena","family":"Samantaray","sequence":"additional","affiliation":[{"name":"Department of Electronics and Communication Engineering, Ajaya Binaya Institute of Technology, Cuttack, Odisha, India"}]},{"given":"Sanjay","family":"Agrawal","sequence":"additional","affiliation":[{"name":"Department of Electronics and Telecom. 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