func SubScalarRev(value Scalar, src, dst *IplImage) {
	SubScalarWithMaskRev(value, src, dst, nil)
}
func SubScalarRev(value Scalar, src, dst *IplImage) {
	SubScalarWithMaskRev(value, src, dst, nil)
}
func SubScalarRev ( value Scalar , src , dst * IplImage ) { SubScalarWithMaskRev ( value , src , dst , nil ) }
// Calculates the per-element difference between a scalar and an array.
//   dst = value - src
Calculates the per - element difference between a scalar and an array . dst = value - src