A simple implementation of the Mean Structural Similarity (MSSIM) algorithm as described in the paper: Zhou Wang et al. "Image quality assessment: From error visibility to structural similarity". In: Image Processing, IEEE Transactions on 13.4 (2004), pp. 600–612.

To run the code, you need to have SciPy library and Python Imaging Library (PIL). If you use Python 3, which is not supported by the PIL, please install one of PIL's forks, for example Pillow.

Usage: ./mssim.py REFERENCE_IMAGE OTHER_IMAGES...