UM:Dvo Effects Dvo Zoom
|From Release :||2015.1|
2017.1 Major Update
DVO Zoom is an upscaling tool with excellent accuracy.
The Enable button enables the entire effect :
If your source material is interlaced, enable Interlaced mode so the processing is done in field mode.
This chapter will use some shortcuts describing various aspect ratio terms :
|SAR||Storage Aspect Ratio||The pixel dimension ratio of media e.g. 1920x1080 has a SAR of 16/9 (dividing gives 1.77).|
|PAR||Pixel Aspect Ratio||Usually 1:1 (square pixels)|
|DAR||Display Aspect Ratio||Aspect of picture as displayed (SAR x DAR)|
Auto Zoom will scale the image accordingly based upon the SAR, PAR and DAR (see terminology) and Zoom selection.
|Disable||No auto zoom|
|Stretch||Stretch the edges of sources to edges of target. No AR preservation.|
|AR Adjust||No zoom. Adjust AR.|
|Fill Inside (Fit)||Zoom image to fit picture in output frame. AR aware. DEFAULT.|
|Fill Full (Crop)||Zoom image to fill output frame. AR aware|
Border Mode defines the edge processing of the image.
|Soft||A smooth scaling throughout the image but will make a soft edge.|
|Hard||A sharper edge with less smooth scaling. DEFAULT|
|Soft outside||A smooth scaling but forcing the soft edge to be outside of the intended scaling size.|
Set specific zoom parameters.
- If Auto Zoom is disabled, set zoom freely
- If Auto Zoom is enabled, append to current zoom settings
|Range||0.1 - 8.0|
You can choose to zoom in any direction :
- Zoom - Scale X and Y
- Zoom X - Scale in X (horizontally) only
- Zoom Y - Scale in Y (vertically) only
Anti-Alias will smooth alias artifacts on result.
|Range||0.0 - 1.0|
Display Aspect Ratio sets the scaling used when Auto Zoom is set to AR. We can set both Src (input) and Dst (output).
|Custom||Sets DAR using custom slider|
|From Custom PAR||Sets PAR using custom slider (DAR = SAR x PAR)|
|As Stored (SAR)||Sets DAR = SAR (PAR is square pixels 1:1). DEFAULT|
|4:3||DAR set as 4:3|
|16:9||DAR set as 16:9|
|2:1||DAR set as 2:1|
|2.35:1||DAR set as 2.35:1|
As long as the PAR is square you can always use default setting As Stored (SAR).
Set a custom value for Src and/or Dst DAR and PAR.
|Range||0.1 - 8.0|
Shift the result horizontally (X) and/or vertically (Y) :
- Source - before scaling
- Destination - after scaling
- Final Frame - place offset as very last process including the blanking
|Values||Source, Destination, Final Frame|
|Default||Destination / 0.0 / 0.0|
If enabled, add a Region of Interest on the source media if it is in a letterbox or pillar format. This to avoid edge ringing between actual image and blanking data.
Any data outside the ROI will be blanking data.
If the blanking data is digital then Auto Detect can be used to automatically find the source ROI in letterbox/pillar media.
Add blanking to target image with either a sharp or soft edge.
|Values||Disable, Enable (Sharp), Enable (Soft)|