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Color Calibration Method for Improvement of Reliability on Image Analysis of Rock  

장윤섭 (서울대학교 지구환경시스템공학부)
박형동 (서울대학교 지구환경시스템공학부)
Publication Information
Tunnel and Underground Space / v.12, no.1, 2002 , pp. 1-9 More about this Journal
Abstract
Recently, the use of image analysis methods and commercial equipments has been extensively increased in the field of rock engineering. However the problem of errors involved in the image acquisition and subsequent analysis procedure has been frequently neglected. In addition there has been few studies dealing with this problem. So proper color calibration method is needed to be developed for the objectivity and improvement of reliability on image analysis of rock. Color calibration method using standard color rendition chart was adopted on this study. Color calibration and error analysis were carried out for the image acquired from granite rock samples. As a result, comparison among other rock images and improvement of reliability on whole analysis were possible.
Keywords
rock image; image analysis; color calibration; standard color chart;
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