update caffe.io to remove warnings

1. /u/relauto/.TOOLS_ROOT/ToolsCommon/SynopsysCaffe/S-2021.06-rc1-nocuda/Linux/lib/python3.6/site-packages/skimage/io/_io.py:49: UserWarning: `as_grey` has been deprecated in favor of `as_gray`
  warn('`as_grey` has been deprecated in favor of `as_gray`')
2. /u/relauto/.TOOLS_ROOT/ToolsCommon/SynopsysCaffe/S-2021.06-rc1-nocuda/Linux/lib/python3.6/site-packages/skimage/transform/_warps.py:110: UserWarning: Anti-aliasing will be enabled by default in skimage 0.15 to avoid aliasing artifacts when down-sampling images.
  warn("Anti-aliasing will be enabled by default in skimage 0.15 to "

Author: minglu2019

python/caffe/io.py

@@ -299,7 +299,7 @@ def load_image(filename, color=True):
         of size (H x W x 3) in RGB or
         of size (H x W x 1) in grayscale.
     """
-    img = skimage.img_as_float(skimage.io.imread(filename, as_grey=not color)).astype(np.float32)
+    img = skimage.img_as_float(skimage.io.imread(filename, as_gray=not color)).astype(np.float32)
     if img.ndim == 2:
         img = img[:, :, np.newaxis]
         if color:
@@ -329,7 +329,7 @@ def resize_image(im, new_dims, interp_order=1):
             # skimage is fast but only understands {1,3} channel images
             # in [0, 1].
             im_std = (im - im_min) / (im_max - im_min)
-            resized_std = resize(im_std, new_dims, order=interp_order, mode='constant')
+            resized_std = resize(im_std, new_dims, order=interp_order, mode='constant', anti_aliasing=None)
             resized_im = resized_std * (im_max - im_min) + im_min
         else:
             # the image is a constant -- avoid divide by 0