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Contrast / Brightness Feature Descriptions
The following table describes these features along with their view attribute.
Table 21: Contrast / Brightness Feature Descriptions
Display Name
Feature & Values
Contrast Mode
contrastMode
Dynamic Adaptive
Static
Fixed Adaptive
Contrast
contrast
Brightness
brightness
Contrast zone x1
contrastZoneX1
Contrast zone x2
contrastZoneX2
Contrast zone y1
contrastZoneY1
Contrast zone y2
contrastZoneY2
Maximum
Gain
contrastMaxGainEnable
Enable
Maximum
Gain
contrastMaxGainValue
Value
Minimum
Input
contrastMinValue
Value
Maximum
Input
contrastMaxValue
Value
Calibir GXM640 IR Camera User's Manual
Description
Determines how images are remapped from
16-bits to 8-bits.
AdaptiveDynamic
Remapping depends on the contrast feature
setting. The algorithm will attempt to
provide a well contrasted image by adapting
to the dynamic range of the scene.
Remapping
Static
contrastMinValue
feature settings.
Remapping
AdaptiveFixed
temperature
brightness features settings.
When the output pixel format is 8-bits, the
range
determines the range of values in the 16-bit
image that are mapped to 8-bit output. The
higher the contrast, the more the values are
stretched across the 8-bit range. When
contrast is set to the maximum value (255),
the image is effectively almost binarized.
Sets the brightness value. A brightness
setting greater than 128 make the image
lighter (shifts pixel values up); lower than
128 makes the image darker (shifts pixel
values down). This feature is only available
when the Contrast Mode (contrastMode)
feature
(AdaptiveFixed).
Horizontal coordinate of the top-left corner
of the contrast zone.
Horizontal coordinate of the bottom-right
corner of the contrast zone.
Vertical coordinate of the top-left corner of
the contrast zone.
Vertical coordinate of the bottom-right
corner of the contrast zone.
Sets the enable state of the gain limit
feature. When enabled, and the scene
contains very little contrast, the amount of
contrast stretching applied to the input
image is limited by the maximum gain. This
reduces
This feature is available when the Contrast
Mode (contrastMode) is set to Dynamic
Adaptive (AdaptiveDynamic).
Sets the maximum gain to use for contrast
stretching the input image. Higher values
result in more contrast stretching. This
feature is only available when the Maximum
Gain (contrastMaxGainEnable) feature is
enabled.
Sets the minimum input 16-bit pixel value
when the Contrast Mode (contrastMode) is
set to Fixed Adaptive (AdaptiveFixed).
Maximum input value for static contrast
depends
on
and
contrastMaxValue
depends
on
the
and
the
contrast
compression
contrast
is
set
to
Fixed
noise
amplification.
Operational Reference 91
View
Beginner
DFNC
the
camera
and
Beginner
setting
DFNC
Beginner
DFNC
Adaptive
Expert
DFNC
Expert
DFNC
Expert
DFNC
Expert
DFNC
Beginner
DFNC
Beginner
DFNC
Beginner
DFNC
Beginner
DFNC
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