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.

Note: This tool is legacy and are replaced with the free STC-0006 Barcode and STC-0009 DataMatrix.

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.