SYNOPSIS

#include <vips/vips.h>

im_dE_fromdisp( in1, in2, out, display )
IMAGE *in1, *in2, *out;
struct im_col_display *display;

int im_dE_fromXYZ(in, out)
IMAGE *in, *out;

im_dECMC_fromdisp( in1, in2, out, display )
IMAGE *in1, *in2, *out;
struct im_col_display *display;

DESCRIPTION

These functions are built on the basic VIPS colour difference measurements as a convenience for the programmer. See im_dE_fromLab(3) for an explanation of the colour difference metrics and the basic comparision functions.

RETURN VALUE

The functions return 0 on success and -1 on error.

COPYRIGHT

National Gallery and Birkbeck College, 1990 - 1993

AUTHOR

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