DataMatrixDetectionParams

Description

Specifies how data matrix codes are being detected.

Structure fields and default values (if defined) are described below:

• int ContrastThreshold = 10 - Guaranteed gray level difference between dark and bright modules
• int ContrastHysteresis = 0 - A value dynamically subtracted from ContrastThreshold to improve local segmentation
• int ContrastPerturbations = 0 - Number of perturbations applied to ContrastThreshold for improving possibility of detection when lighting conditions are highly variable
• int DynamicSNRatio - Signal-to-Noise Ratio that dynamically increases ContrastThreshold; use with low values of ContrastThreshold
• Bool NonBinarySegmentation - Assumes that there might be pixels significantly brighter or darker than the foreground or the background modules in near proximity of the quiet zone; use with DetectionMethod=FinderPattern
• Bool ForceIsotropy - Switches to image preprocessing methods that give more stable results for different code rotations
• DataMatrixDetectionMethod DetectionMethod = QuietZone - Specifies which feature is used for code detection: the shape of the finder pattern or the blob of the quiet zone
• DataMatrixPyramidStrategy PyramidStrategy = Fast - Specifies the step of image downsampling used for finding codes at different scales
• DataMatrixOutlineStrategy OutlineStrategy = Fast - Specifies precision of outline detection