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Testing default pil implemented compressions with libtiff

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wiredfool 2013-11-21 22:13:57 -08:00
parent 94e3c75179
commit 60c93ce1b1
1 changed files with 15 additions and 3 deletions
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18
Tests/test_file_libtiff.py
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@ -220,13 +220,25 @@ def test_blur():
assert_image_equal(im, im2) assert_image_equal(im, im2)
def test_packbits(): def test_compressions():
im = lena('RGB') im = lena('RGB')
out = tempfile('temp.tif') out = tempfile('temp.tif')
im.save(out, compression='packbits') #TiffImagePlugin.READ_LIBTIFF = True
#TiffImagePlugin.WRITE_LIBTIFF = True
for compression in ('packbits', 'tiff_lzw'):
im.save(out, compression=compression)
im2 = Image.open(out)
assert_image_equal(im, im2)
im.save(out, compression='jpeg')
im2 = Image.open(out) im2 = Image.open(out)
assert_image_equal(im, im2) assert_image_similar(im, im2, 30)
TiffImagePlugin.READ_LIBTIFF = False
TiffImagePlugin.WRITE_LIBTIFF = False