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Frustrated because you want to output a high-quality image from your C++ program but haven't found an easy, direct and fast way? Try PNGwriter. Written with scientific simulations in mind, PNGwriter allows you to plot to a PNG image pixel by pixel.
* * *README* * *
This is the last PNGwriter release that will be hosted on SourceForge.net. Please use the following site:
https://github.com/pngwriter/pngwriter/releases
to find all versions of PNGwriter including and later than 0.5.5.
...
Improla == IMage PROcessing LAb.
It is meant for image processing research and teaching. From ImprolaLib-0.0.2, it supports reading and writing PNG images. It uses PNGwriter(pngwriter.sourceforge.net) for this purpose.