Add script to download DIV2K dataset

[arisliang]

I couldn't find any download script for DIV2K dataset at the moment. Is it manual download at the moment? If possible, a download script would save a lot of time.

[scotthuang1989]

I try to download the DIV2K dataset from official website, but the competition is ended, So I don't get a chance to download the pictures, but I check the terms of this dataset, it says this dataset can be used for research and educational purpose for free. So I think share the dataset is ok if provided the license file with it. Can some one kindly do it?. I want to use the pre-trained the model to check the result and then do transfer learning, it would be huge helpful if I have this dataset.

[William-Mou]

@scotthuang1989 Hello, There is an another website which save the DIV2K dataset. Although it doesn't share the test dataset of the contest like ReadME, but it share the photo what you need to train this model. https://data.vision.ee.ethz.ch/cvl/DIV2K/

And, there is a link included some dataset for running this code. https://drive.google.com/drive/folders/19LNkrgZDxtYQWNoaONAzbqmgK9fBEc_I?usp=sharing

[scotthuang1989]

@William-Mou Thanks. I can download dataset from this link.