NAME
perceptualdiff - perceptual image comparison tool
SYNOPSIS
perceptualdiff [options] image1 image2
DESCRIPTION
Compares image1 and image2 using a perceptually based image metric. Images can be in any FreeImage-supported format: TIF, PNG, etc.
OPTIONS
- --verbose
-
Turn on verbose mode
- --fov deg
-
Field of view in degrees [0.1, 89.9] (default: 45.0)
- --threshold p
-
Number of pixels p below which differences are ignored
- --gamma g
-
Value to convert rgb into linear space (default: 2.2)
- --luminance l
-
White luminance (default: 100.0 cdm^-2)
- --luminance-only
-
Only consider luminance; ignore chroma (color) in the comparison
- --color-factor
-
How much of color to use [0.0, 1.0] (default: 1.0)
- --down-sample
-
How many powers of two to down sample the image (default: 0)
- --scale
-
Scale images to match each other's dimensions
- --sum-errors
-
Print a sum of the luminance and color differences
- --output o
-
Write difference to the file o
- --version
-
Print version
OpenMP status: enabled