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This paper presents a novel method for edge detection of optical character images based on a variant of cellular automata, called non-linear cellular automata. The method consists of three stages and each stage is simple to understand and implement. A standard binarization technique is applied to a grayscale image and boundary conditions are added to the resultant image. Finally, non-linear cellular automata rules are designed and applied simultaneously to all pixels of the image. The suggested scheme has been validated on optical characters (handwritten as well as printed) of different languages. Furthermore, results are compared with standard edge detection techniques in terms of different performance parameters like entropy, kappa values, true positives, false negatives, etc. It is observed that the suggested scheme is superior to other standard schemes. Hence, the scheme has the potential application for character recognition. <\/jats:p>","DOI":"10.1177\/0037549716665156","type":"journal-article","created":{"date-parts":[[2016,8,26]],"date-time":"2016-08-26T02:19:08Z","timestamp":1472177948000},"page":"849-859","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Non-linear cellular automata based edge detector for optical character images"],"prefix":"10.1177","volume":"92","author":[{"given":"Deepak R","family":"Nayak","sequence":"first","affiliation":[{"name":"Department of Computer Science and Engineering, National Institute of Technology, India"}]},{"given":"Ratnakar","family":"Dash","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Engineering, National Institute of Technology, India"}]},{"given":"Banshidhar","family":"Majhi","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Engineering, National Institute of Technology, India"}]},{"given":"Jahangir","family":"Mohammed","sequence":"additional","affiliation":[{"name":"Department of Physics, Utkal University, India"}]}],"member":"179","published-online":{"date-parts":[[2016,8,25]]},"reference":[{"volume-title":"Feature extraction and image processing","year":"2008","author":"Nixon M.","key":"bibr1-0037549716665156"},{"doi-asserted-by":"publisher","key":"bibr2-0037549716665156","DOI":"10.1016\/0146-664X(82)90070-3"},{"doi-asserted-by":"publisher","key":"bibr3-0037549716665156","DOI":"10.3390\/e17085711"},{"key":"bibr4-0037549716665156","first-page":"1","author":"Wang S","year":"2015","journal-title":"Comput Math Methods Med"},{"doi-asserted-by":"publisher","key":"bibr5-0037549716665156","DOI":"10.1186\/s40064-015-1523-4"},{"volume-title":"Outstanding dissertations in the computer sciences","year":"1963","author":"Roberts LG.","key":"bibr6-0037549716665156"},{"doi-asserted-by":"publisher","key":"bibr7-0037549716665156","DOI":"10.1109\/TPAMI.1986.4767851"},{"doi-asserted-by":"publisher","key":"bibr8-0037549716665156","DOI":"10.1098\/rspb.1980.0020"},{"doi-asserted-by":"publisher","key":"bibr9-0037549716665156","DOI":"10.1016\/0031-3203(94)90084-1"},{"doi-asserted-by":"publisher","key":"bibr10-0037549716665156","DOI":"10.1016\/S0031-3203(03)00083-9"},{"doi-asserted-by":"publisher","key":"bibr11-0037549716665156","DOI":"10.1007\/s11432-008-0124-z"},{"doi-asserted-by":"publisher","key":"bibr12-0037549716665156","DOI":"10.3390\/app6060169"},{"volume-title":"IEEE proceedings on Machine Learning and Cybernetics","author":"Chang C","first-page":"3830","key":"bibr13-0037549716665156"},{"volume-title":"IEEE proceedings on information communication and embedded systems","author":"Mohammed J","first-page":"1","key":"bibr14-0037549716665156"},{"doi-asserted-by":"publisher","key":"bibr15-0037549716665156","DOI":"10.1007\/978-3-319-06431-4"},{"volume-title":"Theory and applications of cellular automata","year":"1986","author":"Wolfram S.","key":"bibr16-0037549716665156"},{"volume-title":"Proceedings of 3rd international conference on advanced computing, networking and informatics","author":"Nayak DR","first-page":"427","key":"bibr17-0037549716665156"},{"doi-asserted-by":"publisher","key":"bibr18-0037549716665156","DOI":"10.1109\/12.338094"},{"key":"bibr19-0037549716665156","first-page":"59","volume":"9","author":"Sahoo S","year":"2014","journal-title":"J Cell Autom"},{"doi-asserted-by":"publisher","key":"bibr20-0037549716665156","DOI":"10.1016\/j.camwa.2008.11.012"},{"key":"bibr21-0037549716665156","first-page":"2011: 1","author":"Choudhury PP","year":"2011","journal-title":"Internat J Math Math Sci"},{"doi-asserted-by":"publisher","key":"bibr22-0037549716665156","DOI":"10.2528\/PIER15040602"},{"doi-asserted-by":"crossref","unstructured":"Shannon CE. 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