Programowanie w systemie UNIX/obrazy: Różnice pomiędzy wersjami
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== perceptualdiff ==
Instalacja :
sudo apt install perceptualdiff
Użycie
<pre>
Usage: perceptualdiff [options] image1 image2
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
</pre>
=Źródła=
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