public void executePreProcessingStep4(bool student)
{
if (VisionDLL.executePreProcessingStep4(task, student))
{
IntPtr image = VisionDLL.getResultPreProcessingStep4(task);
preProcessing4 = VisionDLL.getBitmapFromRGBImage(image);
VisionDLL.imageFreeRGB(image);
return;
}
throw new FaceRecognitionTask.FaceRecognitionException("Pre-Processing step 4: failed!");
}