Create white pixel above all single white pixels

[wineismine]

I need to create white pixel above the solitary white pixels so as to fill the gap made by line removal.Please help

[fmw42]

Would it be sufficient to just remove single white pixels or whatever is the minimum area of white? If so, you can do that with -connected-components. Filling in would likely result in thickening your characters where you do not want them thicker or filling in closed parts of the characters.