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Optical Character Recognition (OCR) First Example

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Signal Processing Resource Center » Vision Development Module Image Processing Examples » Optical Character Recognition (OCR) First Example

This example shows how to use the optical character recognition (OCR) VIs in NI Vision. OCR is the process by which a machine vision application reads text and/or characters in inspection images. First, use the OCR Training Interface to teach your application the characters you want to read. The OCR Training Interface creates an OCR session file, which you then use to read characters that you have learned.

Learn more about common image processing algorithms, vision systems and see case studies at Analysis in Machine Vision Applications

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This example requires LabVIEW and is included with the Vision Development Module. Download the LabVIEW Evaluation and the Vision Development Module Evaluation to try this example. After installing the software, open LabVIEW and navigate to Help » Find Examples... » Toolkits and Modules.


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This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).