Added support for opening WhiteIsZero 16-bit integer TIFF images

[JayWiz]

just added a line to support 16 bit integer TIFFs. is kinda unusual, but this this is needed for custom generated TIFFs, e.g. if you're working with holograms or interferograms.

What did i do?

added a line in TiffImagePlugin.py to support 16 bit integer TIFFs

What did i expect to happen?

that Pillow is able to work with 16 bit integer TIFFs

What did actually happen?

Pillow is able to work with 16 bit integer TIFFs

What versions of Pillow and Python am i using?

Python 3.9 and Pillow 9.2.0

[radarhere]

#3335 didn't add any TIFF-specific tests, so I don't think tests are needed here.

Feel free to say no, but would you be able to upload a copy of one such TIFF here, just in case we want to refer back to it in the future?

[JayWiz]

#3335 didn't add any TIFF-specific tests, so I don't think tests are needed here.

Feel free to say no, but would you be able to upload a copy of one such TIFF here, just in case we want to refer back to it in the future?

yes of course, i'm fine with that. where should i upload it?

[radarhere]

Just attach it to a comment here. I understand that GitHub won't let you attach a TIFF, so compress it into a zip first.

[JayWiz]

image_raw.zip

in case you're interested: this is a multipage tiff with 6 frames generated by two lasers, which can be reconstructed to this 3d point cloud. had to find a smaller tiff, usually one tiff is around 800 mb)

[radarhere]

Thanks