A small utility to compare the noise of renders to a ground truth.
This tool has not been thorughly tested, but any contributions are welcome.
Install a D compiler (https://dlang.org)
Run dub in this directory; the application should then be built.
run rendercmp --help to get usage info.
May be out of date
rendercmp (options) <ground truth image> <images to compare...>
Similarity is dervived through the similarity between the noise and the ground truth on the RGB channels, as well an CIE algorithm generated grayscale luminance channel.
Check the source to see the formular used.
The score is based on the average similarity across all the tests.
Notes:
It's recommended to compare bitmap (BMP) or Targa (TGA) images, as they have little to no compression artifacts.
Only 8-bit-per-channel image files are supported.
Options:
--help | Displays this help page
Supported image formats:
BMP
TGA
PNG
JPEG