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Resize error with tiff about sharp HOT 3 CLOSED

lovell avatar lovell commented on May 9, 2024
Resize error with tiff

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Comments (3)

lovell avatar lovell commented on May 9, 2024

Thanks @pierreinglebert, I can reproduce this for TIFF inputs. Forcing the input file through both the libmagick and libtiff input paths within libvips produces the same error too. Let me investigate.

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lovell avatar lovell commented on May 9, 2024

I spotted that the value used for the affine transformation needs to be recalculated if a shrink operation is used, otherwise rounding errors can creep in.

@pierreinglebert I've added your sample that broke it as a unit test. Are you able to test against master and confirm this problem has now gone away? Thank you!

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pierreinglebert avatar pierreinglebert commented on May 9, 2024

Way better, thanks !

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