mlib_imagezoomtranslate_fp(3mlib) [sunos man page]

mlib_ImageZoomTranslate_Fp(3MLIB)			    mediaLib Library Functions				 mlib_ImageZoomTranslate_Fp(3MLIB)

NAME

       mlib_ImageZoomTranslate_Fp - zoom, with translation

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status  mlib_ImageZoomTranslate_Fp(mlib_image  *dst,  const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy, mlib_d64 tx, mlib_d64 ty,
       mlib_filter filter, mlib_edge edge);

DESCRIPTION

       The mlib_ImageZoomTranslate_Fp() function will enlarge or minify the floating-point source image by the X and Y zoom factors, with transla-
       tion. It uses the interpolation method as described by the resampling filter.

       It uses the following equation for coordinate mapping:

       xd = zoomx*xs + tx
       yd = zoomy*ys + ty

       where a point with coordinates (xs, ys) in the source image is mapped to a point with coordinates (xd, yd) in the destination image.

       The data type of the images can be MLIB_FLOAT or MLIB_DOUBLE.

       The width and height of the destination image can be different from the width and height of the source image.

       The center of the upper-left corner pixel of an image is located at (0.5, 0.5).

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       zoomx	       X zoom factor.  zoomx > 0.

       zoomy	       Y zoom factor.  zoomy > 0.

       tx	       X translation.

       ty	       Y translation.

       filter	       Type of resampling filter. It can be one of the following:

		       MLIB_NEAREST
		       MLIB_BILINEAR
		       MLIB_BICUBIC
		       MLIB_BICUBIC2

       edge	       Type of edge condition. It can be one of the following:

		       MLIB_EDGE_DST_NO_WRITE
		       MLIB_EDGE_DST_FILL_ZERO
		       MLIB_EDGE_OP_NEAREST
		       MLIB_EDGE_SRC_EXTEND
		       MLIB_EDGE_SRC_EXTEND_INDEF
		       MLIB_EDGE_SRC_PADDED

RETURN VALUES

       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageZoomTranslate(3MLIB), mlib_ImageAffine(3MLIB), mlib_ImageAffine_Fp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				 mlib_ImageZoomTranslate_Fp(3MLIB)

mlib_ImageZoomTranslateTable(3MLIB)			    mediaLib Library Functions			       mlib_ImageZoomTranslateTable(3MLIB)

NAME

       mlib_ImageZoomTranslateTable - zoom, with translation, with table-driven interpolation

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status  mlib_ImageZoomTranslateTable(mlib_image *dst, const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy, mlib_d64 tx, mlib_d64 ty,
       const void *interp_table, mlib_edge edge);

DESCRIPTION

       The mlib_ImageZoomTranslateTable() function will enlarge or minify the source image by the X and Y zoom factors, with translation. It  uses
       a table, interp_table, to do interpolation.

       It uses the following equation for coordinate mapping:

       xd = zoomx*xs + tx
       yd = zoomy*ys + ty

       where a point with coordinates (xs, ys) in the source image is mapped to a point with coordinates (xd, yd) in the destination image.

       The data type of the images can be MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT.

       The width and height of the destination image can be different from the width and height of the source image.

       The center of the upper-left corner pixel of an image is located at (0.5, 0.5).

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       zoomx	       X zoom factor.  zoomx > 0.

       zoomy	       Y zoom factor.  zoomy > 0.

       tx	       X translation.

       ty	       Y translation.

       interp_table    Pointer to an interpolation table. The table is created by the mlib_ImageInterpTableCreate() function.

       edge	       Type of edge condition. It can be one of the following:

		       MLIB_EDGE_DST_NO_WRITE
		       MLIB_EDGE_DST_FILL_ZERO
		       MLIB_EDGE_OP_NEAREST
		       MLIB_EDGE_SRC_EXTEND
		       MLIB_EDGE_SRC_EXTEND_INDEF
		       MLIB_EDGE_SRC_PADDED

RETURN VALUES

       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageInterpTableCreate(3MLIB),    mlib_ImageInterpTableDelete(3MLIB),   mlib_ImageZoomTranslateTable_Fp(3MLIB),   mlib_ImageZoomTrans-
       late(3MLIB), mlib_ImageZoomTranslate_Fp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 			       mlib_ImageZoomTranslateTable(3MLIB)