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Shift Fields
You can change the dominant field for interlaced output formats using the Shift Fields
pulldown menu.
Up — shifts both interlaced fields up one line.
Down — shifts both interlaced fields down one line.
Both choices change the field dominance of the interlaced output.
Telecine
If you have material that is 24 fps, such as that shot on film, and want to change the frame rate
up to 29.97 fps for NTSC video output, the telecine filter can perform this conversion by adding
pulldown frames.
To change to 29.97 frame rate:
In the Image tab, click the Telecine check box to activate it.
1.
In the Encode tab, select 29.97 fps.
2.
This filter uses the standard 3:2 pulldown sequence.
Blur
Applying a mild blur to a noisy source video used to be a common practice in digital video
production to remove the noise and enhance encoding. However, the Cleaner Adaptive Noise
Reduction filter generally produces superior results to those achieved with the Blur filter.
Avoid using the Blur filter except in special cases.
The Blur filter offers three preset blur settings and a Custom option. The Custom option enables
you to control the radius and amount of the blur. The higher the Radius slider is set, the more
extreme the blur. The Amount slider controls how much of the blurred image is overlaid onto
the original image. Setting this slider to 100% produces an image that is entirely the result of
the blur, while 50% blends the original sharp image with the blurred image at half opacity.
Using these two controls together gives you a fine level of control over the blurring, and gives
some interesting soft-focus effects.
The preset blurs are specially optimized and faster than the Custom option.
Note:
Sharpen
Sharpening the video does not usually improve encoding per se, but sometimes improves the
subjective image quality of video that has been scaled up by making it look more in focus.
However, excessive sharpening of a noisy video source that is being scaled up from the original
degrades encoding, so use this filter sparingly.
The Image Tab
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