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Strange indeed, but only in some random (?) patches. Overall I'd say it's looking fine.Testing the new version (4) of Topaz AI Gigapixel. Scaled up this Sony A7Rm CV 40/1.2 shot to 53 MP. Click image for full size. Looks a bit strange in the OOF areas, but otherwise OK.
Thanks for sharing Carl, the sharp areas look to be upsampled very nice with good detail, it's just some zones in the oof areas that suddenly seem to be struck by their new "Topaz Sharpen AI". But I really can't make out what triggers this, since there seem to be similar large oof areas that are unaffected.Testing the new version (4) of Topaz AI Gigapixel. Scaled up this Sony A7Rm CV 40/1.2 shot to 53 MP. Click image for full size. Looks a bit strange in the OOF areas, but otherwise OK.
I did the conversion again. First time the TIFF exported to Topaz AI Gigapixel had been sharpened first and the artifacts were already present before it was upsampled. This time I exported the TIFF file directly from the raw in LR with no sharpening. No more artifacts.
True, and I did not say that I expected more detail. I wanted to see if it gave a reasonably clean (no or few artifacts) large file, which it does.Up-sampling turns a black pixel into four black pixels (2x2).
It does not and cannot add detail. No software can do that.