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mlib_imagelookup(3mlib) [sunos man page]

mlib_ImageLookUp(3MLIB) 				    mediaLib Library Functions					   mlib_ImageLookUp(3MLIB)

NAME

       mlib_ImageLookUp - table lookup

SYNOPSIS

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

       mlib_status mlib_ImageLookUp(mlib_image *dst, const mlib_image *src, const void **table);

DESCRIPTION

       The mlib_ImageLookUp() function maps the source image to the destination image by using the user-specified lookup table.

       The  source and destination images must have the same width and height. The source image can be a single channel image or can have the same
       number of channels as the destination image. One of the following equations is used accordingly:

       dst[x][y][i] = table[i][src[x][y][0]]
       dst[x][y][i] = table[i][src[x][y][i]]

       The source and destination images can have different data types. See the following table for available variations of the table lookup func-
       tion on image types:

       Type [*]        BYTE	 SHORT	   USHORT	INT	 FLOAT	   DOUBLE
       MLIB_BIT 	Y
       MLIB_BYTE	Y	   Y	      Y 	 Y	   Y	      Y
       MLIB_SHORT	Y	   Y	      Y 	 Y	   Y	      Y
       MLIB_USHORT	Y	   Y	      Y 	 Y	   Y	      Y
       MLIB_INT 	Y	   Y	      Y 	 Y	   Y	      Y

       [*] Each row represents a source data type. Each column represents a destination data type.

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       table	       Pointer	to  lookup table. The data type of the lookup table is the same as the destination image. The number of entries in
		       the lookup table is determined by the type of the input image. The format of the lookup table is:

		       table[channel][index]

		       The MLIB_BIT type entries are indexed from 0 to 1. The MLIB_BYTE type entries are indexed from 0  to  255.  The	MLIB_SHORT
		       type entries are indexed from -32768 to -1, then from 0 to 32767. The MLIB_USHORT type entries are indexed from 0 to 65535.
		       The MLIB_INT type entries are indexed from -2147483648 to -1, and then from 0 to 2147483647.

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_ImageLookUp_Inp(3MLIB), mlib_ImageLookUp2(3MLIB), mlib_ImageLookUpMask(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 					   mlib_ImageLookUp(3MLIB)

Check Out this Related Man Page

mlib_ImageColorTrue2Index(3MLIB)			    mediaLib Library Functions				  mlib_ImageColorTrue2Index(3MLIB)

NAME

       mlib_ImageColorTrue2Index - true color to indexed color using nearest matched LUT entries

SYNOPSIS

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

       mlib_status mlib_ImageColorTrue2Index(mlib_image *dst, const mlib_image *src, const void *colormap);

DESCRIPTION

       The mlib_ImageColorTrue2Index() function converts a true color image to a pseudo color image with the method of finding the nearest matched
       lookup table entry for each pixel. The source image can be an MLIB_BYTE or MLIB_SHORT image with three or four  channels.  The  destination
       must be a single-channel MLIB_BYTE or MLIB_SHORT image.

       The last parameter, colormap, is an internal data structure (which includes the lookup table) for inverse color mapping. Create it by call-
       ing the mlib_ImageColorTrue2IndexInit() function.

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination or destination image.

       src	       Pointer to source or source image.

       colormap        Internal data structure for inverse color mapping.

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_ImageColorErrorDiffusion3x3(3MLIB),   mlib_ImageColorOrderedDither8x8(3MLIB),   mlib_ImageColorTrue2IndexFree(3MLIB),   mlib_ImageCol-
       orTrue2IndexInit(3MLIB), attributes(5)

SunOS 5.10							    9 Nov 2004					  mlib_ImageColorTrue2Index(3MLIB)
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