PAULINE & HARRIS Wedding B/W and Colour Photo

ANGEL & DOMINIC Wedding B/W and Colour Photo

FRANCIS & SIMON Wedding B/W and Colour Photo

SALLY & DAMIEN Wedding Portrait B/W Photo

RAIN & JASON Wedding B/W and Colour Photo

MAY & JIMMY Wedding B/W Photo

MANDY & HIM Wedding B/W and Colour Photo

REBECCA & STEVEN Wedding Portrait B/W and Colour Photo

HELEN & ANDY Wedding Colour Photo

REBECCA & BENNY Wedding B/W and Colour Photo

For best result, you should be able to differentiate 10 shades in the below scale.

If not, adjust brightness / contrast / gamma. (100% - 90% in particular)