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This is just a quick little test I did to show how well the resynthesizer plugin resizes an image as compared to the standard gimp scaling tool.
Notice how the Resynthesizer seemed to eliminate the jpeg artifacts. However, also notice how it picked the wrong texture at some points and gave the quail the appearance of white lint.
The algorithm must have been improved, because it ran much faster than I remember. However it may just be my machine is faster. The other two machines I tried it with were only 100 and 500 MHz computers and memory to match. Today's test ran many many times faster than tests on the other machines. Tests run on a 1.5GHz AMD Athlon XP. Each smart enlarge took a few minutes. If I had tried our quail image on the others, I am certain the test would have taken at least an hour with heavy swapping. Not fun.
The original image:
Image scaled with GIMP's scaling algorithm using bicubic interpolation:
Image scaled with the Resynthesizer's smart enlarge feature:
Image scaled with CImg lib's greycstoration:
(options: -g 1065x780 -q 75 -resize)
greycstoration with 10 passes:
