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by lifthrasiir
872 days ago
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> Using the sCAL chunk (physical scale) would allow extremely large dimensions because it uses ASCII floating-point. AFAIK sCAL is more about the image's subject, not the image itself. A 1:10,000,000 scale world map would be < 10 m wide according to pHYs, but it will be ~40,000 km wide according to sCAL. |
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