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is_SetHdrKneepoints |
uEye Camera Manual Version 3.80
is_SetHdrKneepoints
USB 2.0 GigE |
USB 2.0 GigE |
Syntax
INT is_SetHdrKneepoints (HIDS hCam,
KNEEPOINTARRAY* KneepointArray,
INT KneepointArraySize)
Description
Using is_SetHdrKneepoints(), you can define settings for the HDR mode (High Dynamic Range) which is supported by some sensors. You can enable / disable HDR mode by calling is_EnableHdr().
For further information on HDR mode, please refer to the HDR Sensor Principles chapter.
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Input Parameters
hCam |
Camera handle |
KneepointArray |
Pointer to a field (see below). |
Contents of the KNEEPOINTARRAY Field
INT NumberOfUsedKneepoints |
Number of knee points used. |
KNEEPOINT Kneepoint[10] |
Knee point |
Contents of the KNEEPOINT Structure
double x |
Knee point x value |
double y |
Knee point y value |
The x value of a knee point indicates the first phase of the currently set exposure time (in %). The y value indicates the proportion of maximum pixel intensity in percent. If two knee points are used, you can set two phases in which the images will not be exposed. This means that two corresponding times will be set on the x-axis.
For instance, the effects of setting x = 60, y = 80 would be as follows: The first exposure phase takes up 60% of the set exposure time. In this first exposure phase, all pixels are exposed up to a maximum of 80% of the maximum pixel intensity and remain at 80% until this phase is over. In the second exposure phase, they are exposed again and may reach the full pixel intensity.
Return Values
IS_SUCCESS |
Function executed successfully |
IS_NO_SUCCESS |
General error message |
IS_NOT_SUPPORTED |
Unsupported sensor |
Related Functions
Sample Programs
• | uEyeC# Hdr Demo (C#) |