Can OpenCV do these processing?

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I am working on an OCR project. I need to do some pre-processing similar to the link below: http://cn.mathworks.com/help/vision/e...

The steps are:

• Region detection (MSER)
• Edge detection (Canny)
• Connected Component Analysis (for character candidates filtering)

I am not familiar with OpenCV. I am wondering if OpenCV can do all of these.