Multidimensional Scaling MATLAB implement

A MATLAB implement of Multidimensional Scaling For Matching Low-Resolution Face Images[1].
The input features used in this implement is PCA features.
The dataset for testing the performance is ORL face database.
Simply run MDS_main.m and PCA_only.m to compare the result.

[1]S. Biswas, K. W. Bowyer, and P. J. Flynn, “Multidimensional scaling for matching low-resolution face images,”IEEE transactions on pattern analysis and machine intelligence, vol. 34, no. 10, pp. 2019–2030,2012.