xiJ - Technical Manual Version 0.06
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4.2.
API Features
Host-assisted image processing features available in xiAPI.
4.2.1.
Auto Exposure
–
Auto Gain
When AEAG is used, every captured image is evaluated for its mean intensity. Based on the result, the exposure and gain values
are modified with the objective to achieve a target intensity level for the following image. Further, the maximum applicable
exposure and gain values can be defined. Since both, exposure and gain, have an influence on the intensity, the ratio between
those two parameters in their contribution to the algorithm can also be set (exposure priority).
4.2.2.
Sensor Defect Correction
During the manufacturing process, every camera is tested for various type of defects and a list of the measured defect pixels is
created and stored in the camera’s non
-volatile memory. This list is then used for the correction of acquired images during
operation. The correction is inactive by default but can be turned on by the user if a non-processed output is required.
