[FFmpeg-devel] [PATCH v2 1/2] avfilter/interlace: change lowpass_line function

Thomas Mundt loudmax at yahoo.de
Tue Mar 21 13:58:52 EET 2017


>>Thomas Mundt <loudmax-at-yahoo.de at ffmpeg.org> schrieb am Mo, 13.3.2017:
> Hi,
> 
> this patch set
> 1) changes the lowpass_line function prototype in vf_interlace and vf_tinterlace as suggested by James Almer.
> 2) adds a complex (-1 2 6 2 -1) vertical low-pass filter to vf_interlace and vf_tinterlace.
> This one slightly less reduces interlace 'twitter' but better retains detail and subjective sharpness impression compared to the linear (1 2 1) filter.
> The (-1 2 6 2 -1) filter gave best results tested with several CRT, TFT and OLED monitors, hardware and software deinterlacers.
> 
Ping


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