title: Delphi> Vertical scanline? (Get columns instead of rows?)
body: <p><img src="https://i.stack.imgur.com/xlZjX.jpg" alt="alt text"></p>
  
  <p>I'm trying to write an algorithm that will detect the space between 'RF' and 'WOOLF in the image below.
  I need something like Scanline for COLUMNS not rows.
  My algorithm will be scanning each column for the presence of black pixels, if it finds any it will store '1', else it will store '0', so for example the image above might be:
  000001111111111111111111100000000000000000000000011111111111111111111111111111111111111111111111111
  so I will know that the space starts on pixel 30.</p>