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Added reading of CMYK;16L TIFF images

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This commit is contained in:
Andrew Murray 2019-05-01 00:42:30 +10:00
parent 6d5b8926be
commit ca0d28eae5
4 changed files with 9 additions and 0 deletions
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Tests/images/tiff_strip_cmyk_16l_jpeg.tif Normal file
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6
Tests/test_file_libtiff.py
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@ -687,6 +687,12 @@ class TestFileLibTiff(LibTiffTestCase):
self.assert_image_similar_tofile(im, "Tests/images/pil_sample_cmyk.jpg", 0.5)
def test_strip_cmyk_16l_jpeg(self):
infile = "Tests/images/tiff_strip_cmyk_16l_jpeg.tif"
im = Image.open(infile)
self.assert_image_similar_tofile(im, "Tests/images/pil_sample_cmyk.jpg", 0.5)
def test_strip_ycbcr_jpeg_2x2_sampling(self):
infile = "Tests/images/tiff_strip_ycbcr_jpeg_2x2_sampling.tif"
im = Image.open(infile)

2
src/PIL/TiffImagePlugin.py
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@ -263,6 +263,8 @@ OPEN_INFO = {
(II, 5, (1,), 1, (8, 8, 8, 8, 8, 8), (0, 0)): ("CMYK", "CMYKXX"),
(MM, 5, (1,), 1, (8, 8, 8, 8, 8, 8), (0, 0)): ("CMYK", "CMYKXX"),
(II, 5, (1,), 1, (16, 16, 16, 16), ()): ("CMYK", "CMYK;16L"),
# JPEG compressed images handled by LibTiff and auto-converted to RGBX
# Minimal Baseline TIFF requires YCbCr images to have 3 SamplesPerPixel
(II, 6, (1,), 1, (8, 8, 8), ()): ("RGB", "RGBX"),

1
src/libImaging/Unpack.c
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@ -1417,6 +1417,7 @@ static struct {
{"CMYK", "CMYKXX", 48, copy4skip2},
{"CMYK", "CMYK;I", 32, unpackCMYKI},
{"CMYK", "CMYK;L", 32, unpackRGBAL},
{"CMYK", "CMYK;16L", 64, unpackRGBA16L},
{"CMYK", "C", 8, band0},
{"CMYK", "M", 8, band1},
{"CMYK", "Y", 8, band2},