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This thesis applies the image processing technique to develop
algorithms for recognition of the real coin. I hope we can
implement hardware based on the ideal algorithms for public
phones and vending machines to avoid to get the tokens from the
TV Games in order to make better profit.Those algorithms are
categorized in two parts. The first one uses the characteristic
values to analyses the head or tail of the coins. The second one
uses the cycle contrast to recognize the rims of the coins. This
thesis includes all algorithms forcoin recognition, the
detailsand the result of the experiment. Besides the algorithms
mention above, we also focuses on the low error rate algorithm.
Itmay become the trend for the future development of hardware.
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