Image Access Bookeye Color, Руководство по эксплуатации

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9.4.6 Exposure
Picture 40: Exposure and Gamma settings
Value range from 0 (zero) to 100.
Sets the threshold value for the black cut function or for the auto exposure function.
No Function disabled.
Black Cut Sets the threshold for black . All pixel values found in the image below the
selected value are set to black.
Result: The image contrast is improved.
Auto Sets the threshold for black and activates the automatic exposure control.
These function searches the image for the highest and the lowest pixel value.
The highest pixel value is defined as “white”. Is the lowest pixel value higher
than the threshold it is defined as “black”. Otherwise all values below the
threshold are defined as “black”.
Result: Automatic contrast control and the image contrast is improved.
9.4.7 Gamma
Only with color modes True Color and Grayscale .
Value range from 1 to 2.5.
9.4.7.1 Preselection
Selects predefined settings for gamma.
Page 50 Operation Manual