Removing the background noise of a captcha image by replicating the chopping filter of TesserCap

Question

I have a captcha image that looks like this:

Using a utility called TesserCap from McAfee, I could app

Answer 1

Try something like this (pseudocode):

for each row of pixels:
    if there is a group of about 3 or more pixels in a row, leave them
    else remove the pixels

Then simply repeat the same thing for the columns. Seems like it might work at least a little. Going both horizontally and vertically like this will remove horizontal/vertical lines as well.