Reproduction of Dark
Areas (Black Stretch/
Compress Function)
Process the dark areas according to the balance of bright and dark areas in the image to adjust the overall balance of contrast.
1 Adjust [Black Toe] in the [Camera Process...] menu according to the captured video signals.
2 Set the luminance point (Point Level) for AStretchB or ACompressB.
●Decide the luminance point (Point Level) at which the dark areas in the image are to be stretched or compressed.
●The luminance point (Point Level) can be set within the range of A5% to 15%B.
3 Adjust the amount of AStretchB or ACompressB.
●Set the amount to stretch or compress the dark areas in the image using [Stretch Level] or [Compress Level].
●The amount of stretch or compression increases when a larger value is specified.
ExampleTo increase the area of 10% level (Point A in the figure below) in the image under normal condition ([Black Toe] is ANormalB)
ASet [Black Toe] to AStretchB.
BSet [Point Level] to A10%B.
CSet the amount to increase using [Stretch Level] (ALevel 1 to Level 5B).
The reproduction of dark areas improves as the 10% level point A stretches toward point B. (See figure below)
OUTPUT
When [Black Toe] is |
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AStretchB |
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| When [Black Toe] is |
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| ANormalB |
B | Increasing the 10% area | ||
A | [Point Level] set at A10%B | ||
0
0 |
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| INPUT |
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5% | 10% | 15% | |||
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