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28 lines
790 B
Python
28 lines
790 B
Python
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from tester import *
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from PIL import Image, TiffImagePlugin, TiffTags
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tag_ids = dict(zip(TiffTags.TAGS.values(), TiffTags.TAGS.keys()))
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# Test writing arbitray metadata into the tiff image directory
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# Use case is ImageJ private tags, one numeric, one arbitrary data.
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# https://github.com/python-imaging/Pillow/issues/291
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def test_rt_metadata():
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img = lena()
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textdata = "This is some arbitrary metadata for a text field"
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info = TiffImagePlugin.ImageFileDirectory()
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info[tag_ids['ImageJMetaDataByteCounts']] = len(textdata)
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info[tag_ids['ImageJMetaData']] = textdata
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f = tempfile("temp.tif")
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img.save(f, tiffinfo=info)
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loaded = Image.open(f)
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assert_equal(loaded.tag[50838], (len(textdata),))
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assert_equal(loaded.tag[50839], textdata)
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