How do I read symbols from an image

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C#

image

Alright, so what I am trying to achieve is to read certain symbols from an image and then converting that to a normal string.

The program right now is creating a bitmap from the window, it now needs to go over the created bitmap and find the symbols I am looking for, I've got another bitmap that has all said symbols.

I don't know where to go exactly, I could change the bitmap to only make an image of where those symbols would be at, as they are always on the same position just in a different order.
Any lead on where to go would be appreciated.

What I have tried:

I don't know what to do exactly, but I figured to chop the created bitmap up on blocks, as each symbol is a block of 6x11 pixels in a row, and then doing the same to the bitmap with all symbols that it could find. After doing that I would just have to use a switch statement for comparing.