ML.NET for similar patterns recognition

Hello,
I'm new in Machine Learning world; I see some example in github.
I've an application that draw a 2d chart from binary data, and search for something as 5000 patterns(recorded in a db) into those files (10MB).
I use a Boyer Moore algo to find exactly match, but something this patterns are not matching because some anomalies so the users can manually recognize theme from 2d shape similarity. I'd like to that by software; can i do that by ML.net? can I search for this patterns in a file ? I'm developing in vb.net. Any advice?
Regards