1idiff(1)                          OpenImageIO                         idiff(1)
2
3
4

NAME

6       idiff -- compare two images
7

SYNOPSIS

9       Usage: idiff [options] image1 image2
10
11

DESCRIPTION

13       This  program  is  part of the OpenImageIO (http://www.openimageio.org)
14       tool suite.  Detailed documentation is available in pdf format with the
15       OpenImageIO distribution.
16

OPTIONS

18       --help Print help message
19
20       --version
21              Print version and exit
22
23       -v     Verbose status messages
24
25       -q     Quiet (minimal messages)
26
27       -a     Compare all subimages/miplevels
28
29       Thresholding and comparison options
30
31              -fail VAL
32                     Failure absolute difference threshold (default: 1e-06)
33
34              -failrelative VAL
35                     Failure relative threshold (default: 0)
36
37              -failpercent PERCENT
38                     Allow this percentage of failures (default: 0)
39
40              -hardfail VAL
41                     Fail if any one pixel exceeds this error (default: inf)
42
43              -allowfailures N
44                     OK  for  this number of pixels to fail by any amount (de‐
45                     fault: 0)
46
47              -warn VAL
48                     Warning absolute difference threshold (default: 1e-06)
49
50              -warnrelative VAL
51                     Warning relative threshold (default: 0)
52
53              -warnpercent PERCENT
54                     Allow this percentage of warnings (default: 0)
55
56              -hardwarn VAL
57                     Warn if any one pixel exceeds this error (default: inf)
58
59              -p     Perform perceptual (rather than numeric) comparison
60
61       Difference image options
62
63              -o FILENAME
64                     Output difference image
65
66              -od    Output image only if nonzero difference
67
68              -abs   Output image of absolute value, not signed difference
69
70              -scale FACTOR
71                     Scale the output image by this factor (default: 1)
72
73
74
75                               09 November 2023                       idiff(1)
Impressum