@@ -510,25 +510,16 @@ def _make_image(self, A, in_bbox, out_bbox, clip_bbox, magnification=1.0,
                         A = np.dstack([A, np.full(A.shape[:2], alpha, np.float32)])
                     else:  # or apply scalar alpha to existing alpha channel
                         post_apply_alpha = True
-                # Premultiply alpha only if the alpha channel is not constant
-                if np.any(A[..., 3:] != A[0, 0, 3]):
-                    # Resample in premultiplied alpha space.  (TODO: Consider
-                    # implementing premultiplied-space resampling in
-                    # span_image_resample_rgba_affine::generate?)
-                    if float_rgba_in and np.ndim(alpha) == 0 and np.any(A[..., 3] < 1):
-                        # Do not modify original RGBA input
-                        A = A.copy()
-                    A[..., :3] *= A[..., 3:]
-                    res = _resample(self, A, out_shape, t)
-                    # This division may distort colors at the edges of the image
-                    np.divide(res[..., :3], res[..., 3:], out=res[..., :3],
-                              where=res[..., 3:] != 0)
-                else:
-                    # Even though the input alpha channel is constant,
-                    # be aware that the output alpha channel may not be constant
-                    # because the resampler may adjust the alpha to antialias
-                    # the image edges
-                    res = _resample(self, A, out_shape, t)
+                # Resample in premultiplied alpha space.  (TODO: Consider
+                # implementing premultiplied-space resampling in
+                # span_image_resample_rgba_affine::generate?)
+                if float_rgba_in and np.ndim(alpha) == 0 and np.any(A[..., 3] < 1):
+                    # Do not modify original RGBA input
+                    A = A.copy()
+                A[..., :3] *= A[..., 3:]
+                res = _resample(self, A, out_shape, t)
+                np.divide(res[..., :3], res[..., 3:], out=res[..., :3],
+                            where=res[..., 3:] != 0)
                 if post_apply_alpha:
                     res[..., 3] *= alpha