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View Full Version : Question about Subtitle command in AviSynth


HighInBC
9th May 2005, 22:19
When I create a subtitle with avisynth, the subtitle is not interlaced. Meaning that the even and odd lines represent physical distance, not temporal distance.

Becuase of this, when I use the Subtitle command on an interlaced clip, the resulting subtitle shimmers when viewed on a TV.

Am I missing something fundemental? Or am I imagining the effect? If an image is not moving, like a subtitle, then the even and odd lines should be identical. I looked in the Subtitle documentation and saw nothing about interlacing.

Does anyone know how to take just the subtitle image and deinterlace it by duplicating fields?

I know I can do it with the ColorKeyMask command by putting the subtitles on a colored background, but I assume the anti-aliasing in the font will result in artifacts around the edges. Also, this would be very slow and an overly complicated solution.

Any help would be appreciated. Mabye there is a 3rd party plugin to do this?

Thanks,

HighInBC