This paper encloses
the information regarding the ‘IMAGE PROCESSING’. And discussed one of the
major application of image processing ‘BIOMETRICS’. Biometrics technology
allows determination and verification of ones identity through physical
characteristics. To put it simply, it turns your body in to your password. We
discussed various biometric techniques like finger scan, retina scan, facial
scan, hand scan etc. Two algorithms have been proposed by taking biometric
techniques to authenticate an ATM account holder , enabling a secure ATM
by image processing. Biometrics is now
applied in various public and private sectors. No doubt, biometrics is going to
be next generation’s powerful security tool…!
What is Digital Image
Processing?
An
Image may be defined as a two dimensional function f (x,y) where x and y are
spatial(plane) coordinates x, y is called intensity or gray level of the image
at that point. When x, y and the amplitude values of f are all finite, discrete
quantities, we call the image a digital image.
Interest in digital image areas:
improvement of pictorial information for human interpretation: and
representation for autonomous machine perception.
The entire process of Image
Processing and starting from the receiving of visual information to the giving
out of description of the scene, may be divided into three major stages which
are also considered as major sub areas, and are given below
(i) Discretization
and representation: Converting visual information into a discrete form:
suitable for computer processing: approximating visual information to save
storage space as well as time requirement in subsequent processing.
(ii) Processing :Improving image
quality by filtering etc ; compressing data to save storage and channel
capacity during transmission.
(iii) Analysis: Extracting image
features; qualifying shapes, registration and recognition.
We concentrated on human
interpretation application and developed two algorithms which can make the ATM
secure by image processing.
0 comments: