Allow ImageOps.contain() to create zero dimension images

Tests/test_imageops.py

@@ -128,6 +128,16 @@ def test_contain_round() -> None:
     assert new_im.height == 5
 
 
+def test_contain_zero() -> None:
+    im = Image.new("1", (1, 10))
+    new_im = ImageOps.contain(im, (5, 5))
+    assert new_im.width == 0
+
+    im = Image.new("1", (10, 1))
+    new_im = ImageOps.contain(im, (5, 5))
+    assert new_im.height == 0
+
+
 @pytest.mark.parametrize(
     "image_name, expected_size",
     (

src/PIL/ImageOps.py

@@ -297,6 +297,8 @@ def contain(
             new_width = round(image.width / image.height * size[1])
             if new_width != size[0]:
                 size = (new_width, size[1])
+    if min(size) == 0:
+        return Image.new(image.mode, size)
     return image.resize(size, resample=method)