A Novel Tuning Based Contrast Adjustment Algorithm for Grayscale Fingerprint Image

Saudi Journal of Engineering and Technology (SJEAT), 3(1), 15-23.

9 Pages Posted: 22 Feb 2018

See all articles by Krishna Prasad K

Krishna Prasad K

Srinivas University - College of Computer & Information Sciences

P. S. Aithal

Srinivas Institute of Management Studies

Date Written: February 11, 2018

Abstract

In Filtering contrast, brightness and normalization of the image are performed with an ultimate goal to remove or reduce the noise to a maximum extent.Contrast and Brightness are two major factors, which affect the superiority of an image for easy or stainless or pleasant viewing. Equalization through Histogram (HE) is a very famous approach for image contrast adjustment or enhancement in image processing. In general, the histogram equalization distributes pixel values consistently and produces an outcome in a superior image with the linear increasing histogram. Contrast adjustment is the part of image preprocessing and specifically filtering noise. In this paper, the new algorithm is discussed for a Grayscale Fingerprint image. The algorithm tunes pixel intensity value to a higher intensity value based on a constant value τ. In this paper, we compare the new algorithm with Histogram Equalization and try to find its advantages and disadvantages. This method is effectively used in Fingerprint Identification/verification purpose as an alternative for image filtering. The algorithm is implemented using MATLAB2015a.

Keywords: Contrast Adjustment, Fingerprint recognition, Grayscale Image, Histogram Equalization, Image filtering, MATLAB2015a

Suggested Citation

K, Krishna Prasad and Aithal, P. S., A Novel Tuning Based Contrast Adjustment Algorithm for Grayscale Fingerprint Image (February 11, 2018). Saudi Journal of Engineering and Technology (SJEAT), 3(1), 15-23.. Available at SSRN: https://ssrn.com/abstract=3122151

Krishna Prasad K (Contact Author)

Srinivas University - College of Computer & Information Sciences ( email )

Mangalore
India

P. S. Aithal

Srinivas Institute of Management Studies ( email )

Srinivas Campus
Pandeshwar
Mangalore, Mangalore 575001
India
9343348392 (Phone)

HOME PAGE: http://www.srinivasuniversity.ac.in

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