How can I take an image and convert it to text? I have not done this yet, but I intend to do the following:

- Take a screen capture somewhere (which is text).
- Possibly change all the color of the non-text (which I will know the color of the true text) to some other color if this helps any.
- convert the image text into a real text string so I can move the data around etc.

I think I can figure out the screen capture grab of an image and probably the pixel conversion too. But I can't even think of how I would begin to convert from the image to the string text and couldn't find anything by searching. Is there some kind of OCR module that can just be used?

any ideas would be helpful, thanks.