Thresholding is the simplest way to segment objects from a background. If that background is relatively uniform, then you should leave this setting to null or set its Enabled property to false (which is the default behaviour) and a global threshold value will be used to binarize the image by pixel-intensity. If there’s large variation in the background intensity (like a camera image), however, adaptive thresholding (a.k.a. local or dynamic thresholding) may produce better results.

public TesseractOcrImageAdaptiveThresholdingSettings LocalAdaptiveThresholding { get; set; }

Public Property LocalAdaptiveThresholding As TesseractOcrImageAdaptiveThresholdingSettings
	Get
	Set

public:
property TesseractOcrImageAdaptiveThresholdingSettings^ LocalAdaptiveThresholding {
	TesseractOcrImageAdaptiveThresholdingSettings^ get ();
	void set (TesseractOcrImageAdaptiveThresholdingSettings^ value);
}