fix variable bug

app.py

@@ -20,11 +20,22 @@ def blur_pool2d_fn(file, blur_pool2d):
     img: Tensor = K.io.load_image(file.name, K.io.ImageLoadType.RGB32)
     img = img[None]  # 1xCxHxW / fp32 / [0, 1]
 
-    # apply tensor image enhancement
-    x_out: Tensor = K.filters.blur_pool2d(x_out, int(blur_pool2d))
+    x_out: Tensor = K.filters.blur_pool2d(img, int(blur_pool2d))
     
     return K.utils.tensor_to_image(x_out)
 
+def gaussian_blur_fn(file, gaussian_blur2d):      
+    # load the image using the rust backend          
+    img: Tensor = K.io.load_image(file.name, K.io.ImageLoadType.RGB32)
+    img = img[None]  # 1xCxHxW / fp32 / [0, 1]
+
+    x_out: Tensor = K.filters.gaussian_blur2d(img, 
+                                              (int(gaussian_blur2d), int(gaussian_blur2d)),
+                                              (float(gaussian_blur2d), float(gaussian_blur2d)))
+    
+    return K.utils.tensor_to_image(x_out)
+
+
 
 examples = [
     ["examples/monkey.jpg", 1, 1, 1, 1, 1],
@@ -59,10 +70,25 @@ blur_pool2d_fn_demo = gr.Interface(
     live=True
 )
 
+gaussian_blur_fn_demo = gr.Interface(
+    gaussian_blur_fn,
+    [
+        gr.inputs.Image(type="file"),
+        gr.inputs.Slider(minimum=1, maximum=21, step=2, default=1, label="Gaussian Blur")
+    ],
+    "image",
+    examples=examples,
+    # title=title,
+    # description=description,
+    # article=article,
+    live=True
+)
+
 demo = gr.TabbedInterface(
     [
       box_blur_fn_demo,
-      blur_pool2d_fn_demo
+      blur_pool2d_fn_demo,
+      gaussian_blur_fn_demo
     ], 
     [
       "Box Blur",