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    Guild Adept acrosome's Avatar
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    Dec 2013
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    Default Convert a TIF to a PNG (or other Wilbur-friendly format)

    So, I finally got a lovely 7.5arcsec heightmap for North America churned through QGIS and spat out as a TIF. This monster is 6.4GB, 72k x 48k px. I'm pretty sure that Wilbur will choke to death on it, but I want to try anyway. (I want to generate some contour lines.)

    I can load the TIF into GIMP, which does not choke to death on it, but it looks awfully faint- it's much, much more faint than it looks on QGIS, for some damned reason. I'm assuming that it's because the scale range was only -79 to 5634 on the original in QGIS and the TIF file is now 16 bit or something?

    So, how do I fix that faint appearance? Then, I assume that I can just export it as a PNG from GIMP, which is easy. But I have to fix it first.

    Ideas?
    Last edited by acrosome; 05-10-2021 at 09:21 PM.

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