Abstract
In this paper the different salient features of the old and new version of Indian paper currency notes have been studied and compared. The list of security features of Indian currencies have been mentioned and discussed. Various kinds of conventional methods that are used to detect
authenticity and to recognize a note has been explained. It has been
observed that each technique has its own objective and significance.
There are many conventional tools that can be used to recognize different
features of a note. To classify different techniques, the detection method
comprises of two parts i.e., the first line detection method and the second
line detection method. Physical dimensions of a paper note along with
its thickness have pointed out a new parameter which is the diagonal of
a genuine currency note that has been calculated to obtain a proposed
standardization and each value differs from different denominations.
The classification of different Indian banknotes giving emphasis on its
characteristics, both salient and security features, dimensions and detection
methods has been mentioned and briefly explained. For validation of
the paper currencies two methods have been discussed emphasizing on
fuzzy logic framework by taking into consideration a 3-point likert scale
and another validation methodology using digital image processing.
