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

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

17       --help Print help message
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19       -v     Verbose status messages
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21       -q     Quiet (minimal messages)
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23       -a     Compare all subimages/miplevels
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25Thresholding and comparison options
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27       -fail %g
28              Failure threshold difference (0.000001)
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30       -failpercent %g
31              Allow this percentage of failures (0)
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33       -hardfail %g
34              Fail if any one pixel exceeds this error (infinity)
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36       -warn %g
37              Warning threshold difference (0.00001)
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39       -warnpercent %g
40              Allow this percentage of warnings (0)
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42       -hardwarn %g
43              Warn if any one pixel exceeds this error (infinity)
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45       -p     Perform perceptual (rather than numeric) comparison
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47Difference image options
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49       -o %s  Output difference image
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51       -od    Output image only if nonzero difference
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53       -abs   Output image of absolute value, not signed difference
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55       -scale %g
56              Scale the output image by this factor
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60                                 23 April 2020                        idiff(1)