from helper import unittest, PillowTestCase, lena, py3 from PIL import Image class TestFileTiff(PillowTestCase): def test_sanity(self): file = self.tempfile("temp.tif") lena("RGB").save(file) im = Image.open(file) im.load() self.assertEqual(im.mode, "RGB") self.assertEqual(im.size, (128, 128)) self.assertEqual(im.format, "TIFF") lena("1").save(file) im = Image.open(file) lena("L").save(file) im = Image.open(file) lena("P").save(file) im = Image.open(file) lena("RGB").save(file) im = Image.open(file) lena("I").save(file) im = Image.open(file) def test_mac_tiff(self): # Read RGBa images from Mac OS X [@PIL136] file = "Tests/images/pil136.tiff" im = Image.open(file) self.assertEqual(im.mode, "RGBA") self.assertEqual(im.size, (55, 43)) self.assertEqual(im.tile, [('raw', (0, 0, 55, 43), 8, ('RGBa', 0, 1))]) im.load() def test_gimp_tiff(self): # Read TIFF JPEG images from GIMP [@PIL168] codecs = dir(Image.core) if "jpeg_decoder" not in codecs: self.skipTest("jpeg support not available") file = "Tests/images/pil168.tif" im = Image.open(file) self.assertEqual(im.mode, "RGB") self.assertEqual(im.size, (256, 256)) self.assertEqual( im.tile, [ ('jpeg', (0, 0, 256, 64), 8, ('RGB', '')), ('jpeg', (0, 64, 256, 128), 1215, ('RGB', '')), ('jpeg', (0, 128, 256, 192), 2550, ('RGB', '')), ('jpeg', (0, 192, 256, 256), 3890, ('RGB', '')), ]) im.load() def test_xyres_tiff(self): from PIL.TiffImagePlugin import X_RESOLUTION, Y_RESOLUTION file = "Tests/images/pil168.tif" im = Image.open(file) assert isinstance(im.tag.tags[X_RESOLUTION][0], tuple) assert isinstance(im.tag.tags[Y_RESOLUTION][0], tuple) # Try to read a file where X,Y_RESOLUTION are ints im.tag.tags[X_RESOLUTION] = (72,) im.tag.tags[Y_RESOLUTION] = (72,) im._setup() self.assertEqual(im.info['dpi'], (72., 72.)) def test_little_endian(self): im = Image.open('Tests/images/16bit.cropped.tif') self.assertEqual(im.getpixel((0, 0)), 480) self.assertEqual(im.mode, 'I;16') b = im.tobytes() # Bytes are in image native order (little endian) if py3: self.assertEqual(b[0], ord(b'\xe0')) self.assertEqual(b[1], ord(b'\x01')) else: self.assertEqual(b[0], b'\xe0') self.assertEqual(b[1], b'\x01') def test_big_endian(self): im = Image.open('Tests/images/16bit.MM.cropped.tif') self.assertEqual(im.getpixel((0, 0)), 480) self.assertEqual(im.mode, 'I;16B') b = im.tobytes() # Bytes are in image native order (big endian) if py3: self.assertEqual(b[0], ord(b'\x01')) self.assertEqual(b[1], ord(b'\xe0')) else: self.assertEqual(b[0], b'\x01') self.assertEqual(b[1], b'\xe0') def test_12bit_rawmode(self): """ Are we generating the same interpretation of the image as Imagemagick is? """ # Image.DEBUG = True im = Image.open('Tests/images/12bit.cropped.tif') # to make the target -- # convert 12bit.cropped.tif -depth 16 tmp.tif # convert tmp.tif -evaluate RightShift 4 12in16bit2.tif # imagemagick will auto scale so that a 12bit FFF is 16bit FFF0, # so we need to unshift so that the integer values are the same. im2 = Image.open('Tests/images/12in16bit.tif') if Image.DEBUG: print (im.getpixel((0, 0))) print (im.getpixel((0, 1))) print (im.getpixel((0, 2))) print (im2.getpixel((0, 0))) print (im2.getpixel((0, 1))) print (im2.getpixel((0, 2))) self.assert_image_equal(im, im2) def test_32bit_float(self): # Issue 614, specific 32 bit float format path = 'Tests/images/10ct_32bit_128.tiff' im = Image.open(path) im.load() self.assertEqual(im.getpixel((0, 0)), -0.4526388943195343) self.assertEqual( im.getextrema(), (-3.140936851501465, 3.140684127807617)) if __name__ == '__main__': unittest.main() # End of file