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It seems that Loris does not fully support PTIFF, in the sense that it does not give sizes and tiles in the info.json (which may mean that Loris does not read all the information in the image, i.e. widths/heights and tile width/height).
Looking at python-pillow/Pillow#3053 and #415, it sounds like the underlying image library (Pillow) has some support for pyramidal TIFF. I’m not sure if it exposes that information – I’ll need to do more digging.
(Although I’m about to go on leave for a week, so I won’t be looking at this for a while.)
It seems that Loris does not fully support PTIFF, in the sense that it does not give
sizes
andtiles
in the info.json (which may mean that Loris does not read all the information in the image, i.e. widths/heights and tile width/height).Below the info.json of a Pyramid TIFF in Loris:
The TIFF source image has been converted to a tiled pyramidal TIFF with vips:
vips tiffsave B721816101_RIA_062_1_0005.tif ptif/B721816101_RIA_062_1_0005.tif --compression=deflate --tile --tile-width=256 --tile-height=256 —pyramid
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