EasyMatrixCode is a Scorpion wrapper for the Euresys eVision EasyMatrixCode ActiveX control.

The control is licensed separately, see http://www.euresys.com/ and requires a Euresys usb-dongle to run.

Hint: An alternative to Euresys is the free BarCodeReader

When installing Scorpion it is required to select and install the EVision module in the Scorpion Setup. The tool was originally based on eVision Version 6.6. A compatible and complete set of files are installed when installing Scorpion.

The tool will detect and report (presently) a single Data Matrix code within the ROI.

• Impressive robustness to noise, blur and distortion
• Rotation and flipping invariant
• Scaling up to a minimum size (min. cell 3x3 pixels)
• Contrast invariant
• ECC200, ECC000, ECC050, ECC080, ECC100 and ECC140 are supported
• Automatic compensation for illumination changes
• Print quality verification

Data Matrix codes are widely used for parcel tracking and part identification in the semiconductor, pharmaceutical and mechanical industries.  EasyMatrixCode is a fully automatic reader of 2D Data Matrix codes. It recognizes a symbol of any size, contrast, location and orientation in a single operation. Error detection and correction algorithms are used to provide a faithful reading.

Robustness EasyMatrixCode is a library to be used in the more demanding situation. It has been improved to be able to answer the more difficult cases such as: Bad illumination conditions - Non uniform contrast - Under or over exposures   Bad images resulting from printing or optical defects - Blurred Data Matrix codes - Anisotropic and non uniform scaling - Noisy images - Skewed images   Codes hard to detect - Small sized Matrix Codes - Matrix Codes on a textured   background - Laser marked - Nailed - Rectangular Matrix Codest Print quality verification EasyMatrixCode inspects the quality of the Matrix Code printed. Indicators of the printing quality are defined and graded by the ANSI/AIM standard (International Symbology Specification – Data Matrix). EasyMatrixCode is fully compatible with the ANSI/AIM BC11-1997 standard.

Typical performance figures:

• Logical sizes:
  • 9x9, 11x11, 13x13, 15x15, 17x17, 19x19, 21x21, 23x23, 25x25, 27x27, 29x29, 31x31, 33x33, 35x35, 37x37, 39x39, 41x41, 43x43, 45x45, 47x47, 49x49,
  • 10x10, 12x12, 14x14, 16x16, 18x18, 20x20, 22x22, 24x24, 26x26, 32x32, 36x36, 40x40, 44x44, 48x48, 52x52, 64x64, 72x72, 80x80, 88x88, 96x96, 104x104, 120x120, 132x132,
  • 144x144, 8x18, 8x32, 12x26, 12x36, 16x36, 16x48
• Minimum quiet zone width: 1 module
• Minimum module size: 3 pixels
• Minimum contrast: 20%

Setup

Reference - Reference system selection

ROI (Region of interest)

• Use whole picture - only possible if the reference is trivial, i.e., with no calibrator, perspective, rotation or scaling. Position/size is ignored if this is checked.
• Center-X - x
• Center-Y - y
• dX - height
• dY - width
• Size - resampling of the incoming image to shrink/grow. Growing the image may in certaing cases improve the matrix code detection.