Function apriltag_sys::matd_subtract

pub unsafe extern "C" fn matd_subtract(
    a: *const matd_t,
    b: *const matd_t
) -> *mut matd_t

Subtracts matrix ‘b’ from matrix ‘a’, cell-by-cell, and returns the results as a new matrix of the same dimensions. The supplied matrices must have identical dimensions. It is the caller’s responsibility to call matd_destroy() on the returned matrix.