Regarding findchessboardcorners
I write some codes for chessboard detection. It is running very perfect. If chessboard is empty, then it is running perfect. If chesspieces are on chessboard, then is cannot detect chessboard, returning FALSE. So, is this findchessboardcorners function running just when chessboard is empty ?
the answer of your question is YES.and what's more,we get the cam params by using findchessboardcorners function (when chessboard is empty ),and use the params when we processing other images (not chessboard image)