UM:Dvo Effects Dvo Brickwall
|From Release :||2014.2 Updated|
Older Versions :
DVO Brickwall helps reduce signal entropy making compression easier. It provides an extremely sharp cut-off beyond a user defined frequency, enabling you to create an accurately defined spectral content of material for various types of compression pre-processing.
This means that compression artefacts can be reduced and the quality of the compressed image can usually be greatly improved.
The Enable button enables the entire effect :
The DVO Brickwall effect can work in both Log and Linear space.
It is important to set the Data Mode correctly for your source media.
Enable Interlaced for field based input media.
Cutoff lets you control the horizontal and vertical filtering of the luminance, as a percentage of the maximum bandwidth.
A setting of 100% equals a full bypass.
Control horizontal and vertical independently. Each has :
|Range||0 - 100%|
DVO brickwall has four different filter cores, each with a different characteristic.
|Values||Rectangular (Sharp), Rectangular, Circular, Diagonal|
Diagonal is very efficient when mastering for DCT compression algorithms like MPEG.
The Rectangular (Sharp) filter has a very sharp cut off. This can be fine-tuned using the Sharpness cutoff and a different Size of the core filter.
|Values||Small, Normal, Large|
|Range||0 - 15|