This article aims to study the guidelines, the application of the bar code to check the halal certification mark because of a case of consumer products that have been certified halal mark numbered days more. But the check products that receive such marks, which are placed on the various packaging. Can not do easily, such as the size of the halal certification marks, depending on the size of packaging, etc. With such restrictions. So researchers have studied the guidelines applied to join the bar code to check the marked halal certificate. By developing a prototype mobile apps application running on phopli operating system Android. To activate the camera features a mobile phone (Smart phone). To read the bar code on the position and value of product packaging according to the theory, image processing that results after processing is able to read the value of the bar code, and display the details of the halal accreditation mark is correct.
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