If you're looking at a die, and see a 1, the opposite side will be a 6. If you're looking at a 2, the opposite side is a 5, and so on with 3 and 4.
So the back side of that portrait would have sixes in place of ones, and so on - generating a negative, with black taking the place of white, and white taking the place of black.
Comments
Wonder what the reverse side looks like. Come to think of it it would be cool to slice the dice, to save weight and numbers.
The opposite sides of a die add up to seven. So the opposite side of the picture just looks like the negative of the image.
I am not following your train of thought. Care to elaborate a little?
If you're looking at a die, and see a 1, the opposite side will be a 6. If you're looking at a 2, the opposite side is a 5, and so on with 3 and 4.
So the back side of that portrait would have sixes in place of ones, and so on - generating a negative, with black taking the place of white, and white taking the place of black.