idiff man page

Title

idiff -- compare two images

Synopsis

Usage:  idiff [options] image1 image2

Description

This program is part of the OpenImageIO (http://www.openimageio.org) tool suite. Detailed documentation is avaliable in pdf format with the OpenImageIO distribution.

Options

--help
Print help message
-v
Verbose status messages
-q
Quiet (minimal messages)
-a
Compare all subimages/miplevels

Thresholding and comparison options

-fail %g
Failure threshold difference (0.000001)
-failpercent %g
Allow this percentage of failures (0)
-hardfail %g
Fail if any one pixel exceeds this error (infinity)
-warn %g
Warning threshold difference (0.00001)
-warnpercent %g
Allow this percentage of warnings (0)
-hardwarn %g
Warn if any one pixel exceeds this error (infinity)
-p
Perform perceptual (rather than numeric) comparison

Difference image options

-o %s
Output difference image
-od
Output image only if nonzero difference
-abs
Output image of absolute value, not signed difference
-scale %g
Scale the output image by this factor

Info

03 October 2016 OpenImageIO