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Finds candidates for Data Matrix codes in the input image.

Name Type Description
inImage Image Input image
inRoi Region* Range of pixels to be processed
inAllowRectangular Bool Enables detecting rectangular Data Matrices
outDataMatrixPositions Rectangle2DArray Array of possible positions of Data Matrices


Usually followed by a RecognizeDataMatrix filter.


Supported code types: ECC 200 and ECC 000-140.

Around datamatrix must be quiet zone. The minimum quiet zone is equal to the width of a module on all four sides. For applications with moderate to excessive reflected noise in close proximity to the symbol, a quiet zone of 2 to 4 module widths is recommended.


DataMatrices detection.

Complexity Level

This filter is available on Advanced Complexity Level.

See Also

  • ReadSingleQRCode – Detects and recognizes a single QR code on the input image.
  • RecognizeBarcode – Extracts information from a barcode located on the input image at a given position.