Correction Of Object Edges And Sharpness - Datavideo DVK-300HD Instruction Manual

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If the slider is moved to the extremes, the other objects will lose their properties and become
non-transparent; this is why the function should be applied sparingly so that small
differences are still discernible in the distribution of the black background.
The successive step is to obtain a uniform distribution of white on objects which will remain
fully non-transparent. This uneven distribution may arise from the fact that the colours of the
object may have colour components close to the keying colour. In this case an adjustment can
be made using the function known as White level.
The White level slider
By moving the slider from the maximum value to the left, you can obtain a perfect
distribution of white on a given object.
A view after a White level adjustment
In many cases, the option White level will be used in conjunction with the option Black level
in order to obtain the most possible effective settings of the black background, with no losses
on white objects and vice versa.
Picture from a camera will always contain some noise; the DVK 300 enables automatic
correction of interference by means of the Denoise option, which has two settings: standard
and high.
The Denoise buttons

7.3 Correction of Object Edges and Sharpness

As seen in the view after a White level adjustment, an extension of the range by means of the
White level function usually results in the restoration of a uniformly black surface to slight
grays.
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