+}
+@article{tid2008a,
+ title={Tid2008-a database for evaluation of full-reference visual quality assessment metrics},
+ author={Ponomarenko, Nikolay and Lukin, Vladimir and Zelensky, Alexander and Egiazarian, Karen and Carli, M and Battisti, F},
+ journal={Advances of Modern Radioelectronics},
+ volume={10},
+ number={4},
+ pages={30--45},
+ year={2009}
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+ journal={IEEE transactions on image processing: a publication of the IEEE Signal Processing Society},
+ year={2013}
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+@inproceedings{psnrhvsm,
+ title={On between-coefficient contrast masking of DCT basis functions},
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+ volume={4},
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+@incollection{medianggems5,
+ author = {Paeth, Alan W.},
+ title = {Median Finding on a 3-by-3 Grid},
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+ isbn = {9780125434553},
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+@incollection{perrotbookgpu,
+ booktitle={Designing Scientific Applications on GPUs},
+ title = {Image Processing},
+ author={Perrot, Gilles},
+ pages = {28,70},
+ isbn = {9781466571624},
+ year={2013},
+ publisher={CRC Press}
+}
+@article{perrotlniv,
+year={2013},
+issn={1861-8200},
+journal={Journal of Real-Time Image Processing},
+doi={10.1007/s11554-013-0381-y},
+title={Fast GPU-based denoising filter using isoline levels},
+url={http://dx.doi.org/10.1007/s11554-013-0381-y},
+publisher={Springer Berlin Heidelberg},
+keywords={GPU; Denoising; Filter; Isoline; Level line},
+author={Perrot, Gilles and Domas, Stéphane and Couturier, Raphaël and Bertaux, Nicolas},
+pages={1-12},
+language={English}