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The purpose of this study is to develop an algorithm for real-time measurement of aggregate size by means of image processing. The tested materials were rock fragments for construction, which were sorted into five size categories by sieving. The average sizes of the categories were 7.14mm, 14.3mm, 25.4mm, 34.9mm, and 44.5mm. Surface images of the fragments were captured by a digital video camera under...
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