im_Lab2UCS3
Derived colour space conversion functions
Usage
#include <vips/vips.h>
int im_Lab2UCS(in, out)
IMAGE *in, *out;
int im_LabQ2XYZ(in, out)
IMAGE *in, *out;
int im_UCS2Lab(in, out)
IMAGE *in, *out;
int im_Lab2disp(in, out, display)
IMAGE *in, *out;
struct im_col_display *display;
int im_disp2Lab(in, out, display)
IMAGE *in, *out;
struct im_col_display *display;
int im_UCS2XYZ(in, out)
IMAGE *in, *out;
int im_XYZ2UCS(in, out)
IMAGE *in, *out;
Overview
These functions are built on the basic VIPS colour space transformations as a convenience for the programmer. See im_Lab2XYZ(3) for an explanation of the colour spaces and the basic conversion functions.
im_Lab2UCS(3), for example, is defined as:
int
im_Lab2UCS( IMAGE *in, IMAGE *out )
{
IMAGE *t1 = im_open_local( out,
"im_Lab2UCS intermediate", "p" );
if( !t1 ||
im_Lab2LCh( in, t1 ) ||
im_LCh2UCS( t1, out ) )
return( -1 );
return( 0 );
}
Return value
The functions return 0 on success and -1 on error.
Releases
4 releases since Debian 3.1 (Sarge); the text changed 1 time.