PHOTMTRICINTERP

typedef enum 
{
   PME_MINISWHITE      =0  ,/* Grayscale image, minimum value is white */
   PME_MINISBLACK      =1  ,/* Grayscale image, minimum value is black */
   PME_RGB             =2  ,/* RGB color model */
   PME_PALETTE         =3  ,/* color map indexed (palletized) */
   PME_MASK            =4  ,/* 1-bit transparency mask */
   PME_SEPARATED       =5  ,/* color separations (usually CMYK) */
   PME_YCBCR           =6  ,/* CCIR 601 YcbCr image */
   PME_CIELAB          =8   /* 1976 CIE L*a*b* image */
} PHOTMTRICINTERP, *pPHOTMTRICINTERP;

The PHOTMTRICINTERP enumerated type is used to indicate the photometric interpretation that should be saved in a file when saving TIFF files.