1School of ICT, G06, 1.17, Griffith University, Gold Coast Campus,
Queensland 4222, Australia.
Email: {nabin.sharma, ranju.mandal}@griffithuni.edu.au
2Head of School, School of Information and Communication Technology,
Gold Coast campus, Griffith University, Queensland 4222, Australia.
Email : M.Blumenstein@griffith.edu.au
3Computer Vision and Pattern Recognition Unit, Indian Statistical Institute,
203 B. T. Road, Kolkata-700108, India
Email: umapada@isical.ac.in