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Engineering  |  Image, Video, and Usability Lab




VBQUESTVisual Blur QUality Evaluation SofTware is an application for evaluating existing blur metrics. It provides a rich set of tools for blur metrics evaluation, test content generation, correlation analysis, and subjective score analysis. For documentation. help, and more details about VBQUEST, please refer to the index.html file in the help folder which comes with the VBQUEST Software Package.



Copyright (c) 2009-2010 Arizona Board of Regents.  All Rights Reserved.

Contact: Lina Karam ( and Adithya Murthy (

Image, Video, and Usabilty (IVU) Lab, , Arizona State University

This copyright statement may not be removed from any file containing it or from modifications to these files.
This copyright notice must also be included in any file or product that is derived from the source files.
Redistribution and use of this code in source and binary forms,  with or without modification, are permitted provided that the following conditions are met:

– Redistribution’s of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

– Redistribution’s in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

– The Image, Video, and Usability Laboratory (IVU Lab, is acknowledged in any publication that reports research results using this code, copies of this code, or modifications of this code.

The code and our papers are to be cited in the bibliography as:

A. V. Murthy and L. J. Karam, “VBQUEST- Visual Blur QUality Evaluation SofTware”,

A. V. Murthy and L. J. Karam, “MATLAB Based Framework For Image and Video Quality Evaluation,”
International Workshop on Quality of Multimedia Experience (QoMEX), pages 242-247, June 2010.

A. V. Murthy, “MATLAB Based Framework For Image and Video Quality Evaluation,” Master’s thesis, Arizona State University, May 2010.


This software is provided by the copyright holders and contributors “as is” and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed.

In no event shall the Arizona Board of Regents, Arizona State University, IVU Lab members, authors or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.




Note: The VBQUEST Software is available for download at the password-protected link below.  Please email us at and we will send you the needed login information. The VBQUEST Software is being continuously updated and you will be informed about new releases as they become available. If you would like to contribute a visual blur/sharpness quality metric to be added to the next release of the VBQUEST software, please contact us at

VBQUEST Software Package Release 1.0