mask map M in Extending Degrading Model

[leeqiaogithub]

In the image degradation process, we use a mask map M. I want to know how this mask is generated, the code needs to directly provide the path of the mask.

[wzhouxiff]

Our extending degrading model is implemented at RestoreFormer/data/ffhq_uneven_degradation_dataset.py, including the synthesis of the mask.