To illustrate the effect of the samplers when ROTATING images, I put
together a comparative test. It shows the results of rotating a quite
sharp image of astronauts near the space station---if I remember
correctly---by 6.5 degrees with four GIMP methods, three GEGL methods
and three candidate GEGL methods for which patches are provided in

(The image is very sharp: I actually wonder if NASA sharpened it.)

The results, named one.png to nin.png, are found in the tar archive

To know which method was used to produce each image (and get runtimes
for the GEGL methods), read the KEY text file.

Nicolas Robidoux
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