from tester import * from PIL import Image def test_sanity(): def convert(im, mode): out = im.convert(mode) assert_equal(out.mode, mode) assert_equal(out.size, im.size) modes = "1", "L", "I", "F", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr" for mode in modes: im = lena(mode) for mode in modes: yield_test(convert, im, mode) def test_default(): im = lena("P") assert_image(im, "P", im.size) im = im.convert() assert_image(im, "RGB", im.size) im = im.convert() assert_image(im, "RGB", im.size) # ref https://github.com/python-imaging/Pillow/issues/274 def _test_float_conversion(im): orig = im.getpixel((5,5)) converted = im.convert('F').getpixel((5,5)) assert_equal(orig, converted) def test_8bit(): im = Image.open('Images/lena.jpg') _test_float_conversion(im.convert('L')) def test_16bit(): im = Image.open('Tests/images/16bit.cropped.tif') _test_float_conversion(im) def test_16bit_workaround(): im = Image.open('Tests/images/16bit.cropped.tif') _test_float_conversion(im.convert('I'))