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Detect Number/Letter using Aspose.OMR for .NET

I need a solution to read forms that contain:

  • checkboxes (ticks or crosses, not bubbles that have to be coloured in)
  • number fields (can be separated into boxes, i.e. DOB: [ ] [ ] / [ ] [ ] / [ ] [ ] [ ] [ ])
  • text fields (cab be separated into boxes, like date)

Looks like OMR cannot do this, is this correct? I looked at Aspose OCR and the examples are all machine generated text not handwritten numbers / block letters.

Happy to work with OMR templates to give bounding boxes, etc to help the engine but I do need the flexibility for numbers / letters / checkboxes…


Could you kindly share an image on which you need to detect the mentioned symbols. We will further proceed to assist you accordingly.

Sure, I’d like to recognise a form like this:
scan_1.jpg (118 KB)


We have logged an investigation ticket as OMRNET-44 in our issue tracking system. We will further investigate the feasibility of required support and keep you informed with the status of ticket resolution. Please be patient and spare us little time.


It is possible to recognize ticks and crosses using Aspose.OMR, and the quality will be further improved with upcoming versions. Unfortunately, for the moment we do not provide numbers or text recognition functionality.

We suggest trying out Aspose.OCR, it has the functionality to specify area of interests and with some tuning you should be able to recognize letters and numbers. Take a look at GitHub samples for examples of specified recognition blocks: