Difference between revisions of "UM:Dvo Effects Dvo Pixel"
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Revision as of 15:22, 18 April 2016
From Release : | 2015.3 R2 (TBA) |
DVO Pixel is used to find and conceal any stuck, dead or semi-dead pixels coming from a malfunctioning camera sensor.
If you have an "uncut" sequence that is several clips (with different dead pixels), you need to cut it (see the Scene Detect section).
Enable | Enable/Disable the tool. |
This parameter controls how sensitive we are when searching for problem pixels.
The main threshold for finding potential dead pixels (searching the RGB channels).
Range | 0.0 - 1.0 |
Default | 0.75 |
Secondary localised detection sensitivity - expands primary detection. As a compressed or debayered pixel have a tendency to grow to surrounding partners a need to process surrounding pixels might exist.
Range | 0.0 - 1.0 |
Default | 0.5 |
If enabled and a dead pixel is only detected in one (or two) colour channels, full RGB will be selected for detection. This will make DVO Pixel process all channels.
Default | Disabled |
The Safety setting determines how much risk is taken with detection. The higher the value, the more safe and the less risk of errors but the greater chance of less detection of actual problem pixels.
Reduces the possibility of mistaking spatial features for dead pixels.
Range | 0.0 - 1.0 |
Default | 0.5 |
Reduces possibility of mistaking temporally stationary features for dead pixels..
Range | 0.0 - 1.0 |
Default | 0.35 |
Spatial safety is for pixels that have extraordinary features but are not dead.
Stationary safety is for static objects.
These parameters help with visualising the effect DVO Pixel has and helps identify the detected result (because a single pixel can be hard to find). By default any detected pixel will be surrounded by a green marker which indicates that it will be processed. The pixel within will also be color coded to indicate the RGB channels to be processed.
A White pixel overlay indicate that processing will occur on all RGB channels. A Magenta pixel indicates the blue and red channel will be processed.
This visualisation is purely an on-screen aid and is not burnt into the output (exception: see Burn in Overlay below).
This enables the burn-in visualisation in the output result.
This is the most thorough analysis display method as all pixels will have their surrounding marker set in the color that processing will occur in.
Default | Disabled |
This option will burn in the overlay into final result.
Default | Enabled |
This enables the visualisation of the various overlays :
Markers will be indicated with green rectangles around a pixel cluster or painted pixel regions. A painted region of pixels will have a dotted frame in the Burn in Overlay and every pixel will have its own box in the corresponding colour.
Pixels will be coloured as in the processing/detection hit.
Exclude will draw the region included/excluded.
Tool is enabled but dead pixel processing is muted i.e. detection is performed and overlay can be enabled. This can be used to manually verify detection of dead pixels.
Default | Disabled |
If enabled the (muted) process will burn into final output result.
Regions can be used to include or exclude processing. The regions can be drawn interactively.
This region will not be processed.
To draw a region use ALT + Drag Mouse, displayed as red outline with red interior.
To resize a region drag a corner or edge of the marker or drag the center cross to move the region
This region will be processed and can be inside an excluded region.
To draw a region use SHIFT+ ALT + Drag Mouse, displayed as green outline. To resize a region drag a corner or edge of the marker or drag the center cross to move the region.
Hot Key “1” and”2” can alter the state of a selected region to be Included or Excluded.
Excluding can be very useful if there are burn in objects on the material e.g. a logo or timecode.
Manually create a processing mask by manually painting the pixels needed.
The definition of what channels should be processed is done using different colors :
Colour Selection | Processed Channels |
White | R+G+B |
Red | R |
Green | G |
Blue | B |
Yellow | RG |
Cyan | GB |
Magenta | RB |
To paint a pixel use Shift + Drag Mouse, displayed as pixel with the same colour as the selected one, pixel cluster will be indicated as a dotted green outline.
To remove a single paint stroke use CTRL + Shift + Mouse click. To select multiple regions, lasso using the mouse, selected regions will turn yellow.
To select multiple regions, lasso using the mouse. The selected regions will turn yellow.
This will delete all selected regions, marked as yellow.
Hotkey | Delete |
This will remove all painted pixels.
Hotkey | SHIFT + Delete |
This will remove all included and excluded regions.
Hotkey | ALT + Delete |
The overlay updates when changing parameters, but you can force it to update by :
Hotkey | Press "Regenerate Overlay" button |
Hotkey | 0 (zero) |