Gwyddion ‘phenomenal’ for philatelists

The Province of Canada’s 17-cent Jacques Cartier stamp, issued in 1859, features three-dimensional analyses produced by the freeware Gwyddion.

Since its 2004 launch, the free image data processing program Gwyddion has drawn the attention of philatelists for its powerful ability to uncover some of a stamp’s hidden elements. Czech researchers David Nečas and Petr Klapetek developed the program – free to download on gwyddion.net – which can transform engraved and embossed stamps into three-dimensional images. It... Continue reading →

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