Deoldify Vapoursynth filter

[Dan64]

Hello Selur,

   I hope you feel better.
   I updated the ddeoldify filter and added another merge method: Luma Masked Merge
   Probably this is the more effective method to fight against ddcolor psychedelic effect.

   With this method the clips are combined using a luma masked merge, the pixels of ddcolor with luma < luma_mask_limit will be filled with the pixels of deoldify, moreover if the parameter ddcolor_weight > 0, the final clip obtained using the luma mask will be merged again with deoldify. This last merge is necessary to blend the effects of masked merge.

  This is an example of image obtained using Luma Masked Merge,  with luma_mask_limit = 0.6 and ddcolor_weight = 0.4

 

   I made some small change to the parameters in input to ddeoldify.

   Given that "clipb_weight" was used by all the merged methods I removed it from "dd_method_params" list and renamed in "ddcolor_weight".
   I removed "luma_temp_stab" and added "luma_mask_limit" which is used by the new method.  

   Unless are found bugs I'm not planning to add others changes, so I hope that this is the last 2.0 version.

   Thanks again for the nice GUI in Hybrid for this filter.

Dan