When image format is YCbCr and uses 'Subsampling' (cropping of chroma data, all the digicam do that), defines the chroma sample point of subsampling pixel array.

public IOParams..::..EXIFYCbCrPositioning EXIF_YCbCrPositioning { get; set; }

Public Property EXIF_YCbCrPositioning As IOParams..::..EXIFYCbCrPositioning
	Get
	Set

public:
property IOParams..::..EXIFYCbCrPositioning EXIF_YCbCrPositioning {
	IOParams..::..EXIFYCbCrPositioning get ();
	void set (IOParams..::..EXIFYCbCrPositioning value);
}