LiXueying0309/GAN_for_PorousMedia: GAN for quartz sand and soil

This release is partially borrowed from the package named PorousMediaGAN, which is developed by Lukas Mosser, Olivier Dubrule, and Martin J. Blunt from the department of Earth Science and Engineering, Imperial College London. (https://github.com/LukasMosser/PorousMediaGan). We use GAN to generate two kinds of real porous media structure, the quartz sand and the soil. GAN performs well when generating the structure of real porous media. The results are comparable with the XCT data.