This is an updation on the code provided as a part of the paper:
F. Shi, J. Cheng, L. Wang, P.-T. Yap, and D. Shen, “LRTV: MR Image Super-Resolution With Low-Rank and Total Variation Regularizations,” IEEE Transactions on Medical Imaging, vol. 34, no. 12, pp. 2459–2466, 2015.