im_dE_fromLab3
Calculate colour differences
Usage
#include <vips/vips.h>
int im_dE_fromLab(in1, in2, out)
IMAGE *in1, *in2, *out;
int im_dECMC_fromLab(in1, in2, out)
IMAGE *in1, *in2, *out;
int im_dE00_fromLab(in1, in2, out)
IMAGE *in1, *in2, *out;
Overview
Given a pair of images in Lab format, these functions calculate CIE76, CMC(1:1) and CIEDE2000 colour difference images. These are the basic colour difference calculators in VIPS --- other colour difference functions, such as im_dE_fromXYZ(3), are provided as a convenience to the programmer.
See im_Lab2XYZ(3) for an explanation of the various colour spaces VIPS supports and how to convert between them.
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.