User guide

7-19
Timeline Element Properties
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With the Aperture items to the right of the Filter combo box you can
sharpen or blur the image. The slider and its entry field to the right find
their main usage when Moiré effects occur in your images. Moiré ef-
fects are interferences in your video output signal usually caused by fine
black and white image details in your video clip such as striped or
checked patterns. If such interferences in your output occur, use the
Bilinear (real
time)
This setting applies a bilinear filtering to the
zoomed image and may be appropriate for
greater scaling factors. If this filter is select-
ed, all alterations will be performed in real
time, but sharpness cannot be controlled
manually.
Adaptive Filter
(real time)
The ’Adaptive Filter’ is the default setting for
the ’Zoom + Pan’ operator. It provides an
optimized filtering for every scaling factor
which will result in high-end quality pictures.
This filter is real-time capable, i.e. all chang-
es to sharpness or a zooming can be played
out immediately.
Adaptive+ Filter
(real time)
This filter doubles the precision and quality
of the ’Adaptive Filter’ by using hardware re-
sources that are normally used to calculate
transitions in real time. When the ’Adap-
tive+ Filter’ is selected for clips and the clips
are zoomed, transitions on these clips may
require a prerendering (see section “Preren-
dering of Timeline Elements” on page 6-46).
A prerendering can be avoided either by re-
moving a scaling or setting the clips to the
default ’Adaptive Filter’.
Software Filter
(rendering)
With this setting the best possible filter is se-
lected. It provides a software based sophisti-
cated algorithm for all settings on the
operator ’Zoom + Pan’. However, if this fil-
ter is used, the clip has to be prerendered
prior to a play-out (see section “Prerender-
ing of Timeline Elements” on page 6-46).
Filter Meaning