Restoring details on small images.

[My12123]

• Restoring details on small images for better scaling.
• Removing fuzziness.
  The results are not very good now, we need to improve.
  Add clarity to the photo.
  Processed using the code python -m waifu2x.cli --style art_scan -g 0 -r -m noise_scale4x -n 2 -i -o
  
  
  
  
  
  
  
  
  
  
  
  
  
  

[nagadomi]

basically same as #55

Removing fuzziness.

For outlines, I may address it at some point.
For debuler, at the moment, I will not deal with debler. This is because there are two types of blur: blur intended by the artist(e.g., gradation, depth of field) and blur not intended by the artist(e.g., resize degradation). Removing all blur would ruin the artwork. However, it is difficult to achieve this without negative side effects with tiled processing.