Hi ,I am looking for coin recognition or detection source code in matlab.please help me where i can find it.

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Recognition of forms of research and applications try to install
in computers some of the cognitive abilities in humans
where one of the features of human pattern recognition
system is its extreme flexibility. How the Visual system represents
the appearance of objects to allow these recognition
capacity has not yet been resolved [1]. However, we are able
to simulate our perception of objects and forms recognition
in the intelligent machines using mathematical representation and
acquisition patterns or objects by the neural network mechanisms.
identification of coins using these mathematical representation
with the acquisition phase to the pattern recognition system
an advantage over the conventional methods of identification
are commonly used in slot machines. Most coin testers
in slot machines, work by testing the physical properties of the coins
such as the size, weight and materials using sized slots,
doors and electromagnets. However, if physical similarities
exist between parts of different currencies, then the traditional
testers of coins fail to distinguish the different parts. One
this case is the identification of 2 Euro (EURO) and the
new Turkish 1 Lira (TL) of coins [2]. 1 TL piece looks very
much the 2 EURO in weight and size coin and two coins
seem to be recognized and accepted by slot machines being
a € 2 coin, which is roughly 4 times more value a 1
TL piece [3], [4].