idiff -- compare two images
Usage: idiff [options] image1 image2
This program is part of the OpenImageIO
(http://www.openimageio.org) tool suite. Detailed documentation is available
in pdf format with the OpenImageIO distribution.
- --help
- Print help message
- -v
- Verbose status messages
- -q
- Quiet (minimal messages)
- -a
- Compare all subimages/miplevels
Thresholding and comparison options
- -fail
VAL
- Failure threshold difference (default: 1e-06)
- -failpercent
PERCENT
- Allow this percentage of failures (default: 0)
- -hardfail
VAL
- Fail if any one pixel exceeds this error (default: inf)
- -warn
VAL
- Warning threshold difference (default: 1e-06)
- -warnpercent
PERCENT
- Allow this percentage of warnings (default: 0)
- -hardwarn
VAL
- Warn if any one pixel exceeds this error (default: inf)
- -p
- Perform perceptual (rather than numeric) comparison
Difference image options
- -o FILENAME
- Output difference image
- -od
- Output image only if nonzero difference
- -abs
- Output image of absolute value, not signed difference
- -scale
FACTOR
- Scale the output image by this factor (default: 1)