IPlimage

IplImage

IPL image header

typedef struct _IplImage

{

    int nSize;                       /* sizeof(IplImage) */

    int ID;                            /* version (=0)*/

    int nChannels;                /* Most of OpenCV functions support 1,2,3 or 4 channels */

    int alphaChannel;            /* ignored by OpenCV */

/* pixel depth in bits: IPL_DEPTH_8U, IPL_DEPTH_8S, DEPTH_16U, IPL_DEPTH_16S, IPL_DEPTH_32S, IPL_DEPTH_32F and IPL_DEPTH_64F are supported */

    int depth;                       

    char colorModel[4];        /* ignored by OpenCV */

    char channelSeq[4];       /* ditto */

    int dataOrder;                 /* 0 - interleaved color channels, 1 - separate color channels.

                                            cvCreateImage can only create interleaved images */

    int origin;                       /* 0 - top-left origin,

                                            1 - bottom-left origin (Windows bitmaps style) */

    int align;                        /* Alignment of image rows (4 or 8).

                                            OpenCV ignores it and uses widthStep instead */

    int width;                       /* image width in pixels */

    int height;                      /* image height in pixels */

    struct _IplROI *roi;          /* image ROI. when it is not NULL, this specifies image region to

                                            process */

    struct _IplImage *maskROI; /* must be NULL in OpenCV */

    void *imageId;                   /* ditto */

    struct _IplTileInfo *tileInfo;   /* ditto */

    int imageSize;                   /* image data size in bytes

                                               (=image->height*image->widthStep

                                               in case of interleaved data)*/

    char *imageData;               /* pointer to aligned image data */

    int widthStep;                    /* size of aligned image row in bytes */

    int BorderMode[4];            /* border completion mode, ignored by OpenCV */

    int BorderConst[4];            /* ditto */ 

    char *imageDataOrigin;       /* pointer to a very origin of image data

                                               (not necessarily aligned) -

                                               it is needed for correct image deallocation */

} IplImage;