User Manual

5 Right-click the node in the Node Editor and choose “Use OFX Alpha” to enable the
Object Removal plug-in to use whatever key has been created within that node to
do its work.
6 Click the Scene Analysis button, and wait for the analysis to finish. If the object you’re
removing is moving but the camera is locked, you can turn on the “Assume No Motion”
checkbox to improve your results in this case.
If your footage is ideal for object removal, the object will disappear once analysis is
complete, replaced by a seamless background derived from detail found on
neighboring frames.
The result after object removal analysis is complete
The Object Removal plug-in is highly footage dependent, and you won’t always get this good a
result this easily. Problems with the result are shown via gray, either gray fringing or solid gray
filling the replacement window. Gray shows you where the current settings are failing to find
background content with which to fill in the patch you’re removing. If this happens, there are two
things you can try.
 If you notice while playing through the analyzed result that the object removal mask
has gray fringing on some frames, you can try adjusting the “Search Range” slider,
which is the distance, in frames, from the current frame that the Object Removal plug-in
is searching for replacement image detail. For example, if the Search Range is 20, it
searches +/-20 frames from the current location, or 40 frames total. The allowance of 10
frames means we look at every 4th frame. You will generally get the best results for the
smallest range that gives an acceptable result.
 If you’re noticing that the object removal mask is filled entirely with gray on some
frames, this means that background fill couldn’t be easily generated for those frames. In
this case, you can try clicking the “Build Clean Plate” button, which takes a “best guess”
approach to generating a background with which to fill the frame and integrates this
with frames that could be successfully filled in.
 If the patch is successfully filled, but the result isn’t blending well with the background,
you can try changing the Blend mode. The default is Linear, which is a simple cloning
operation, but you can also choose Adaptive Blend, which can provide better results
except in certain situations where the edges of the replacement patch have a different
color or brightness than the background.
Chapter – 143 ResolveFX Revival 3069