UM:Dvo Effects Dvo Scratch
|From Release :||2018.1 Updated|
Was DVO Scratch
DVO Scratch Target processes vertical/continuous scratches.
These are typically those not being detected by dust/dirt removers, which are looking for random defects in the picture. The process is fully automatic and has an advanced detection algorithm with a fill-in result far superior to the normal process of hiding the defect using information from both sides of the scratch.
The DVO Scratch Target tool is an enhanced version of the original DVO Scratch. It has the same controls and can be used in place of the original.
New options allow the user to add and remove columns to the image and then specify whether processing should be forced or bypassed on a per column basis. This will allow scratches that are not detected by the Auto setting to be removed. A paint tool can also be used for shorter scratches and a frame duration can be specified for each column.
Enable or disable the tool.
Set the mode expected in the image data.
|Default||From project setting.|
It is very important to use the correct Data Mode or the processing will be incorrect.
Attempt to automatically determine best settings for shot.
You can use Auto Detect and Manual Regions (below) at the same time.
This determines the image channels used for the detection.
R , G , B
|Y||Luminance detection only. This is the fastest.|
|R+G+B||Separate detection in R, G and B channels.|
Processing of each channel is based on the combined result from the detection.
|R , G , B||Separate detection in R, G and B channels.|
Each detection channel affects the corresponding processing channel.
First stage detector aggressiveness, which determines what columns (and pixels) are selected as scratch candidates to be processed. The higher the setting, the more aggressive we are.
|Range||0 - 1.0|
Second stage detector aggressiveness. This is a modifier for pixel selection within the selected columns (from the first stage). The higher the setting, the more aggressive.
|Range||0 - 1.0|
This is used to describe scratch characteristics. For moderate scratches, typically choose the specific scratch type evident in the material. In case of very heavy scratches, with emphasised edges, it can be advantageous to select Positive+Negative.
|Positive (White)||For brighter (white) scratches|
|Negative (Black)||For darker (black) scratches)|
|Positive+Negative (White+Black)||For a mix of bright and dark scratches.|
Do not use Positive+Negative as a default setting as it will sometimes process too much in the picture.
Sets the width-profile for scratches.
|Values||Thin , Normal , Wide|
If detection/processing is insufficient in areas which have many close scratches, a Wide setting is recommended.
Characterises the level of noise in the image. Image noise will affect the accuracy of detection.
|Range||0 - 1.0|
This determines the colour mode of scratches we detect and process.
|Values||RGB , YUV|
- RGB - used for colour scratches
- YUV - used for monochrome
YUV processing mode can not be used when using detector mode R,G,B.
Determines the base strength of the processing. This affects properties such as smoothness (as might be noticed in wide scratches).
Determines the strength of processing the "residuals" e.g. a very jagged scratch may need additional processing.
|Range||0 - 1.0|
|From Release :||2018.1|
The Regions tool lets you define areas manually for specific processing requirements. You can manually define processing regions to augment the Auto Detect function or use them as an alternative.
Until a region is chosen, the right-hand side of the interface element will be empty.
Regions can be defined using :
- Columns - Use Columns button active
- Painted Areas - Use Paint button active
Column mode is active by default when left-clicking and dragging.
To create a region using a brush, use the keys :
|Paint||ALT + Left-Click|
|Size Brush||SHIFT + ALT + Drag|
|Constrain stroke to vertical||CTRL + ALT + Drag|
To make defined regions visible, enable the Select Region button.
You cannot create regions when Select Region is active, only edit or delete them. See below.
- You can click and drag the outline of a selected region to edit it.
- Press the delete key to remove it
Selected regions can be setup in different ways :
With a region selected, selecting this option on will process only the selected frame. You can also move to a different frame and, by selecting Frames Active a second time, will set a range for processing. Regions that are shown as dotted lines are not active at the current frame.
The active range is shown in the keyframe bar.
By default, the whole clip is processed.
Applied to the selected region, this slects the sensitivity of the scratch detection tool for that region.
Detection can also be :
- Force - Always process this area
- Safe Force - Always process this area but be more cautious
- Deselected - Do not process the area
Regions are colour coded per detection setting used :
Select the scratch type to use (see Type above).
Default : As Effect
Choose components to process.
To enable this, set Colour Mode to R,G,B in the Detection Parameters (see Colour Mode above).