Name: Ratnakirti Roy | Designation: Assistant Professor



MCA from University of North Bengal
Pursuing PhD from National Institute of Technology, Durgapur


Worked at Abacus Analytics (IMRB International)
Worked at North Bengal St. Xavier’s College

Subject Taught

Introduction to Programming Languages, Information and Coding Theory, Computer Graphics, Database Management Systems, Networking Fundamentals, Digital Electronics, Soft Computing, Data Structures


  • Ratnakirti Roy, Suvamoy Changder, “Object based Image Steganography with pixel polygon tracing”, Computational Intelligence in Data Mining – Volume 1,Smart Innovation, Systems and Technologies Volume 31, Lakshmi C Jain, Himansu Sekhar Behera, Jyotsna Kumar Mandal, Durga Prasad Mahapatra (Eds.),2015, pp 699-709.
  • Sabyasachi Kamila, Ratnakirti Roy, Suvamoy Changder, “A DWT based Steganography Scheme with Image Block Partitioning”, Proc. SPIN 2015, Amity School of Engineering and Technology, Amity University, Noida, UP, February 19-20, 2015 (Proceedings to appear in IEEE Xplore)
  • Avinash Tyagi, Ratnakirti Roy, Suvamoy Changder, “High Capacity Image Steganography based on Pixel Value Differencng and Pixel Value Sum”, Accepted for presentation in 2nd International Conference on Advances in Computing and Communication Engineering, Dehradun, 1-2 May, 2015.
  • Piyush Kumar Gupta, Ratnakirti Roy, Suvamoy Changder, “Moderately Higher Significant Bit Embedding (MHSBE) using Optimal Pixel Adjustment Process (OPAP) in RGB images”, 2014 International Conference on Computer Communication and Informatics
[IEEE], Coimbatore, January 3-5, 2014.
  • Ratnakirti Roy, Suvamoy Changder, “Image Steganography with Block Entropy based Segmentation and Variable Rate Embedding”, 2nd International Conference on Business and Information Management (ICBIM 2014) [IEEE], National Institute of Technology, Durgapur, pp. 75-80, 2014.
  • Ratnakirti Roy, Suvamoy Changder, “Image Realization Steganography with LCS based Mapping”, Proc. 2014 7th International Conference on Contemporary Computing (IC3 2014), JIIT, Noida, 7-9 August, 2014, pp. 218-223. [Proceedings available on IEEEXplore]