Apple Compressor (4.0) User Manual
Page 170
Chapter 7
Advanced functions
170
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Deinterlace: Choose a deinterlacing method from this pop-up menu. This decision is a trade-
off between faster processing and higher-quality deinterlacing of motion areas within the
frame. In all cases, each higher-quality deinterlacing option yields the same or better results
than the next lower-quality option. However, if downward resizing is also applied to the frame,
improvements in quality may not be noticeable. Under these circumstances, Fast or Better will
likely provide sufficiently high quality, depending on the amount of downward resizing.
For general information about deinterlacing, see
on page 172.
Important:
Using all Best settings may result in unexpectedly long processing times. If you’re
reducing the frame size in addition to deinterlacing the frame, Fast or Better will likely provide
sufficiently high quality, depending on the amount of downward resizing.
Note: Although the Deinterlace pop-up menu is always active, Compressor only deinterlaces
jobs that need it. (For example, if the source is interlaced and the Output Fields pop-up
menu is set to Progressive, Compressor will deinterlace. If the source media file is progressive,
Compressor will not deinterlace.)
The Deinterlace pop-up menu contains the following options:
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Fast (Line averaging): Averages adjacent lines in a frame.
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Better (Motion adaptive): Applies good-quality deinterlacing for areas of the image that are
in motion.
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Best (Motion compensated): Applies higher-quality deinterlacing for areas of the image that
are in motion.
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Reverse Telecine: Removes the extra fields added during the telecine process to convert the
film’s 24 fps to NTSC’s 29.97 fps. Selecting this item disables all other items in the Frame
Controls pane. For more information about 3:2 pulldown and using the Reverse Telecine
feature, see
on page 173.
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Adaptive Details: Applies advanced image analysis to distinguish between noise and edge areas.
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Anti-alias: Sets a softness level from 0 to 100. This parameter improves the quality of
conversions when you’re scaling media up. For example, when transcoding SD video to HD,
Anti-alias smooths out jagged edges that might appear in the image.
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Details Level: Sets a level (from 0 to 100) to preserve sharp edges. This is a sharpening control
that lets you add detail back to an image being enlarged. Unlike other sharpening operations,
the Details Level setting is able to distinguish between noise and feature details, and generally
doesn’t increase unwanted grain. Increasing this parameter value may introduce jagged edges,
however, which can be eliminated by increasing the Anti-alias level.
Note: Adaptive Details, Anti-alias, and Details Level pertain only to frame resizing (scaling),
not deinterlacing.