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Fix Telecined Fades

©2017 IFeelBloated, Fix Telecined Fades for VapourSynth

License

GPL v3.0

Description

The filter gives a mathematically perfect solution to such (fades were done AFTER telecine which made a picture perfect IVTC pretty much impossible) problem. Unlike vinverse which works as a dumb blurring + contra-sharpening combo and very harmful to artifacts-free frames, this filter works by matching the brightness of top and bottom fields with statistical methods, and also harmless to healthy frames.

Usage

clip = core.ftf.FixFades(clip, mode=0, threshold=0.002, color=[0.0, 0.0, 0.0], opt=True)

Options

  • clip: Clip to be processed.

  • mode: could be 0 (default), 1, or 2.

    • 0: Adjust the brightness of both fields to match the average brightness of 2 fields.
    • 1: Darken the brighter field to match the brightness of the darker field.
    • 2: Brighten the darker field to match the brightness of the brighter field.
  • threshold: Threshold for the average difference per pixel, on a scale of 0.0 - 1.0, but could go beyond 1.0, the frame will remain untouched if the average difference between 2 fields goes below this value.

  • color: Base color of the fade, default is [0.0, 0.0, 0.0](black).

  • opt: Call the fastest possible functions if opt=True, else call the C++ functions.

Building from sources

You need The Meson Build System installed.

$ cd /path/to/src/root && mkdir build && cd build && meson --buildtype release .. && ninja
# ninja install