1idiff(1)                          OpenImageIO                         idiff(1)
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NAME

6       idiff -- compare two images
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SYNOPSIS

9       Usage: idiff [options] image1 image2
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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.
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OPTIONS

18       --help Print help message
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20       -v     Verbose status messages
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22       -q     Quiet (minimal messages)
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24       -a     Compare all subimages/miplevels
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26       Thresholding and comparison options
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28              -fail VAL
29                     Failure threshold difference (default: 1e-06)
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31              -failpercent PERCENT
32                     Allow this percentage of failures (default: 0)
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34              -hardfail VAL
35                     Fail if any one pixel exceeds this error (default: inf)
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37              -warn VAL
38                     Warning threshold difference (default: 1e-06)
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40              -warnpercent PERCENT
41                     Allow this percentage of warnings (default: 0)
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43              -hardwarn VAL
44                     Warn if any one pixel exceeds this error (default: inf)
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46              -p     Perform perceptual (rather than numeric) comparison
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48       Difference image options
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50              -o FILENAME
51                     Output difference image
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53              -od    Output image only if nonzero difference
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55              -abs   Output image of absolute value, not signed difference
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57              -scale FACTOR
58                     Scale the output image by this factor (default: 1)
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62                                  02 May 2021                         idiff(1)