This repository includes the implementation of the objective quality metric described in the paper: L. Krasula, K. Fliegel and P. Le Callet, "FFTMI: Features Fusion for Natural Tone-Mapped Images Quality Evaluation," in IEEE Transactions on Multimedia, vol. 22, no. 8, pp. 2038-2047, Aug. 2020, doi: 10.1109/TMM.2019.2952256.