opencv/cxcore.go
func AbsDiff(src1, src2, dst *IplImage) {
	C.cvAbsDiff(
		unsafe.Pointer(src1),
		unsafe.Pointer(src2),
		unsafe.Pointer(dst),
	)
}
func AbsDiff(src1, src2, dst *IplImage) {
	C.cvAbsDiff(
		unsafe.Pointer(src1),
		unsafe.Pointer(src2),
		unsafe.Pointer(dst),
	)
}
// Calculates the per-element absolute difference between two arrays.