Can OpenCV do these processing?

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/examples/automatically-detect-and-recognize-text-in-natural-images.html 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.