im_lab2disp(3) - Linux man page

Name

im_Lab2UCS, im_LabQ2XYZ, im_UCS2Lab, im_Lab2disp, im_disp2Lab, im_UCS2XYZ, im_XYZ2UCS - derived colour space conversion functions

Synopsis

#include <vips/vips.h>
#include <vips/colour.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;

Description

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.

See Also

im_col_xyz2rgb(3), im_de_fromlab(3), im_labq2lab(3), im_Lab2disp(3).

Copyright

National Gallery and Birkbeck College, 1990 - 1993

Author

K. Martinez - 2/12/1992
J. Cupitt - 21/7/93

Referenced By

im_de_fromxyz(3), im_disp2xyz(3)