from tester import * from PIL import Image def test_sanity(): file = tempfile("temp.tif") lena("RGB").save(file) im = Image.open(file) im.load() assert_equal(im.mode, "RGB") assert_equal(im.size, (128, 128)) assert_equal(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(): # Read RGBa images from Mac OS X [@PIL136] file = "Tests/images/pil136.tiff" im = Image.open(file) assert_equal(im.mode, "RGBA") assert_equal(im.size, (55, 43)) assert_equal(im.tile, [('raw', (0, 0, 55, 43), 8, ('RGBa', 0, 1))]) assert_no_exception(lambda: im.load()) def test_gimp_tiff(): # Read TIFF JPEG images from GIMP [@PIL168] codecs = dir(Image.core) if "jpeg_decoder" not in codecs: skip("jpeg support not available") file = "Tests/images/pil168.tif" im = Image.open(file) assert_equal(im.mode, "RGB") assert_equal(im.size, (256, 256)) assert_equal(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', '')), ]) assert_no_exception(lambda: im.load()) def test_xyres_tiff(): 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() assert_equal(im.info['dpi'], (72., 72.)) def test_little_endian(): im = Image.open('Tests/images/16bit.cropped.tif') assert_equal(im.getpixel((0,0)), 480) assert_equal(im.mode, 'I;16') b = im.tobytes() # Bytes are in image native order (little endian) if py3: assert_equal(b[0], ord(b'\xe0')) assert_equal(b[1], ord(b'\x01')) else: assert_equal(b[0], b'\xe0') assert_equal(b[1], b'\x01') def test_big_endian(): im = Image.open('Tests/images/16bit.MM.cropped.tif') assert_equal(im.getpixel((0,0)), 480) assert_equal(im.mode, 'I;16B') b = im.tobytes() # Bytes are in image native order (big endian) if py3: assert_equal(b[0], ord(b'\x01')) assert_equal(b[1], ord(b'\xe0')) else: assert_equal(b[0], b'\x01') assert_equal(b[1], b'\xe0') def test_12bit_rawmode(): """ 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))) assert_image_equal(im, im2)