Microscope slides have labels. In many instances, these slides have barcodes printed on them. In complex scenarios, a single label can even have multiple barcodes.

These barcodes are available in several different industry-standard formats.

Through the technique of Optical Character Recognition (OCR), many times it is possible for computer software to automatically recognize a barcode and reverse engineer it back to its original textual representation (which can then be a LIMS Accession ID or other internal identifier).

PMA.core uses two open source libraries to try to interpret printed-on barcodes as good as it can.

https://github.com/zxing/zxing

The following formats are supported by ZXing (check the website for latest updates):

https://products.aspose.com/barcode/net/

Here is the list of barcode formats supported by Aspose:

Supported linear types:

• EAN-13
• EAN-8
• UPC-A
• UPC-E
• Interleaved 2-of-5
• Standard 2-of-5
• MSI
• Code 11
• Codabar
• EAN-14
• SSCC-18
• ITF-14
• Matrix 2-of-5
• PZN
• Code 128
• Code 39 Extended
• Code 93 Extended
• Code 93 Standard
• IATA 2-of-5
• OPC
• GS1 Code 128
• ISBN
• ISMN
• ISSN
• ITF-6
• VIN
• Pharmacode
• GS1 Databar Family: Databar Omnidirectional, Databar Truncated, Databar Limited, Databar Expanded, Databar Stacked, Databar Expanded Stacked, Databar Stacked Omnidirectional
• PatchCode
• Supplement

2D types:

• PDF417
• Macro PDF417
• Micro PDF417
• Aztec Code
• Data Matrix
• Compact PDF417
• QR Code
• Micro QR Code
• DotCode
• MaxiCode
• GS1 Data Matrix
• Italian Post 25
• Code16K

Postal types:

• Postnet
• Planet
• Australia Post
• USPS OneCode
• Deutsche Post Identcode
• Royal Mailmark
• RM4SCC
• Deutsche Post Leticode
• SingaporePost
• AustralianPost eParcel
• SwissPost Parcel

See image endpoints.