IDS peak 2.8.0 / uEye+ firmware 3.33

Some image contents require to define a sub-region for automatic image adjustments.

Example 1: Difficult light conditions for ExposureAuto

Fig. 112: ExposureAuto algorithm fails due to difficult light conditions

Fig. 113: Define a sub-region for ExposureAuto

Fig. 114: Background excluded from ExposureAuto, target with correct brightness

Example 2: Large colored object for BalanceWhiteAuto

Fig. 115: BalanceWhiteAuto algorithm fails due to large colorful object in the background

Fig. 116: Define a neutral color sub-region for BalanceWhiteAuto 

Fig. 117: BalanceWhiteAuto on grayscale achieves correct colors

Configuration

You can define the two sub-regions independently. The sub-regions must lie within the image ROI.

Fig. 118: Relations between sensor, ROI and sub-region

Select the sub-region that you want to configure. "AutoFeatureBrightnessAuto" applies to ExposureAuto and GainAuto.

SubRegionSelector = AutoFeatureBrightnessAuto;

Disable SubRegionFollowSource to make the auto algorithm use a sub-region and not the complete image ROI.

SubRegionFollowSource = False;

Now define the sub-region relative to the current image ROI.

SubRegionWidth = 1200;
SubRegionHeight = 800;
SubRegionOffsetX = 360;
SubRegionOffsetY = 100;

Fig. 119: Dimensions of sensor, image ROI and sub-region

Fig. 120: Measurement annotation in IDS peak Cockpit

The measurement annotation helps to find a suitable vertical position for the white balance sub region.

Additional information