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Checking the quality of blasting is considered an essential matter in surface mining, and requires measuring objective parameters. One of these parameters is the results of the blasted product. Numerous fragmentation “measuring” systems have been developed and marketed, based on image-processing. In this study, the GoldSize system was used to determine the size distribution of rock fragments in Sarcheshmeh Copper complex mine, Iran. The effects of size of rock samples and imaging method on image analysis are i...