Comments (2)
It worked - thank you so much for this!
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This is a new error to me, but my best guess is that ImageMagick is writing out the TIFFs using RGBA (i.e., with an alpha channel). The TIFF format supports alpha channels, but libtiff's JPEG compressor (which LibVips uses) does not.
Try adding -alpha off
to the convert
command when you compress the images.
Again, this is just a guess (both the cause and the suggested fix), so I can't guarantee the results, but it's a pretty low effort option to try and see if it works.
from serverless-iiif.
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