So this is a section of a sudoku puzzle as the code sees it:
It’s a screen cap of some debug output put into GEdit with a small font. It’s just 1’s and 0’s. A few interesting things here apart from the noise around the lower left of 8 is that it’s clearly obvious which numbers were the ones printed in the paper, the 2 and 3, along with the fact that the perfect horizontal lines are visibly distorted compared to the verticals. This is entirely down to the angle that I suspect most people will photograph things from unless they try for an exactly overhead shot. Now to test my detection routines.