catch opencv import error to fail gracefully without opencv-contrib

import_error_install.bat

@@ -7,13 +7,13 @@ echo installing requirements...
 
 if exist "%python_exec%" (
     echo Installing with ComfyUI Portable
-	%python_exec% -s -m pip uninstall opencv-python opencv-contrib-python opencv-python-headless opencv-contrib-python-headless
+	%python_exec% -s -m pip uninstall -y opencv-python opencv-contrib-python opencv-python-headless opencv-contrib-python-headless
     for /f "delims=" %%i in (%requirements_txt%) do (
         %python_exec% -s -m pip install "%%i"
     )
 ) else (
     echo Installing with system Python
-	pip uninstall opencv-python opencv-contrib-python opencv-python-headless opencv-contrib-python-headless
+	pip uninstall -y opencv-python opencv-contrib-python opencv-python-headless opencv-contrib-python-headless
     for /f "delims=" %%i in (%requirements_txt%) do (
         pip install "%%i"
     )

nodes.py

@@ -5,9 +5,13 @@ import torch
 import torchvision.transforms
 import numpy as np
 import cv2
-from cv2.ximgproc import guidedFilter
 from pymatting import *
 
+try:
+    from cv2.ximgproc import guidedFilter
+except ImportError:
+    print("\033[33mUnable to import guidedFilter, make sure you have only opencv-contrib-python or run the import_error_install.bat script\033[m")
+
 
 class AlphaClean:
     def __init__(self):