Indian Journal Of Natural Sciences www.tnsroindia.org. © IJONS Vol.5 / Issue 28/ February 2015 International Bimonthly ISSN: 0976 – 0997 RESEARCH ARTICLE The Application of Image Processing Technique to Separate the Rock Salt with Impurity Mohsen Naseri Tanha1*, Ali Mohammadi Sani2 and Maryam Tavakoli Fadiheh3 1,2Department of Food Science and Technology, Quchan Branch, Islamic Azad University, Quchan, Iran. 3Young Researchers and Elite Club, Quchan Branch, Islamic Azad University, Quchan, Iran. Received: 22 Dec 2014 Revised: 11 Jan 2015 Accepted: 18 Jan 2015 *Address for correspondence Mohsen Naseri Tanha Department of Food Science and Technology, Quchan Branch, Islamic Azad University, Quchan, Iran. E-mail:
[email protected] This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. ABSTRACT With the increasing awareness of consumers and complexity of the application, the application of modern methods of quality control is inevitable. Long traditional methods of identification and separation of impurities have been used in the production of food products. However, after increasing the production, these methods appearing to be cheap are not responsive to the needs of industries. In contrast to traditional methods, the computer inspection of food products is affordable, sustainable and more effective. With respect to the consumer demand, in order to have access to safe and high quality food products and also due to dramatic advances in image processing in recent decades from both theoretical and practical aspects, in this paper, a machine vision system based on image processing is proposed to separate the gross rock salt based on calibration.