1. GIMP - GNU image manipulation program.
https://www.gimp.org/
2. OpenMP.
http://www.openmp.org/
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4. Ashlock, D., Karthikeyan, B., Bryden, K.M.: Non-photorealistic rendering of images as evolutionary stained glass. In: Proceedings of IEEE International Conference on Evolutionary Computation, pp. 2087–2094, July 2006
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