Dot Matrix OCR
Can I read dot matrix printouts/scans in IronOCR?
Yes - accuracy does depend on the quality of the input image. Some pre-processing of the image can also help improve results, so we suggest this article which offers suggestions - https://jeffreymorgan.io/articles/improve-dot-matrix-ocr-performance-tutorial/
For deeper processing to achieve reliable OCR results, we recommend ImageMagick for .NET as a free and very well documented tool with filters comparable to Photoshop - https://www.nuget.org/packages/Magick.NET-Q8-AnyCPU/
You may also try loading a dot matrix-specific language pack. We don't have this available but a great place to start is this project on GitHub - https://github.com/ameera3/OCR_Expiration_Date
For more information on adding a custom language pack in IronOCR - https://ironsoftware.com/csharp/ocr/languages/#custom-language-example