The datamatrix_detection package
This package aims to find and decode DataMatrix barcodes on a received image.
The datamatrix_detection package uses the existing open source dmtx library for DataMatrix decoding, which can be installed from Ubuntu repository by doing:
sudo apt-get install libdmtx-dev
Here is an example on how to use the datamatrix_detection package. Using the usb_cam_reader package as an image publisher: