R2-2

What's Changed

• Allow for detecting multiple instances of the same qr codes at the same time. by @jwlodek in #31

Full Changelog: R2-1...R2-2

R2-1

R2-1 (8-May-2019)

• Features Added:
  • Threading has been added (similar to NDPluginDmtx) for much faster performance, and no lost frames
• Bug Fixes
  • Threading for improved performance removes issues with dropped frames when image size was too large
  • Y-coordinate for corner PVs now indicates from the bottom up rather than from the top down
• Future Plans
  • Possible integration with ADPluginDmtx
  • Image autosaving when barcode detected
  • Database integration

R2-0

R2-0 (4-January-2018)

• Features Added:
  • Corners can now be displayed for any of the 5 barcodes via a PV toggle
  • Number Codes now lists the number of codes in the image not the total number of codes
  • Passing the ADPluginBar Array Port to an EPICS Viewer allows for live display of detected barcodes and QR codes
  • Support for both 8 bit and 16 bit images
  • Added support for input of RGB images as opposed to only Mono images
  • Barcode Message PVs changed to waveforms to increase max character count to 256
• Bug Fixes/Code Refactoring:
  • Fixed issue where plugin would freeze in certain situations where codes were repeated.
  • Removed redundant functions, split up large functions into more compact pieces
  • Improved documentation for all functions
• Future Plans:
  • Add support for automatic image saving when barcodes detected
  • Support for databases like MySQL and MongoDB

R1-1

R1-1 (27-June-2018)

• Several key features added and bugs fixed:
  • Support added for reading up to 5 codes in one image (Corner data stored in PV for first code)
  • Support added for reading inverted bar codes i.e. white code on black background
  • Fixed issue where number of barcodes would continue to increment when seeing the same bar code
  • Fixed issuse where seeing the same barcode would cause an infinite loop of asyn messages in the IOC shell
• Future plans:
  • Add ability to save image file with detected barcodes marked.
  • Add ability to pipe information into an NDArray and display it in CSS

R1-0

R1-0 (22-June-2018)

• Original release. Some issues that can be resolved with future releases:
  • Only mono images supported
  • stringin record used for barcode message, so limit of 40 characters currently