R-2G image-magick
4 x AMD Opteron 6128 testing with a and on CentOS 5.3 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1111305-LI-R2GIMAGEM86.
GraphicsMagick
Operation: HWB Color Space
GraphicsMagick
Operation: Blur
GraphicsMagick
Operation: Local Adaptive Thresholding
GraphicsMagick
Operation: Resizing
GraphicsMagick
Operation: Sharpen
Phoronix Test Suite v10.8.4