added app files

app.py

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+import gradio as gr
+import cv2
+
+def process_image(input_image):
+    # Convert the image to grayscale
+    gray_image = cv2.cvtColor(input_image, cv2.COLOR_BGR2GRAY)
+
+    return gray_image
+
+iface = gr.Interface(fn=process_image, inputs="image", outputs="image", 
+                     examples=[[cv2.imread('img.jpg')]])
+iface.launch()
+

requirements.txt

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+opencv-python
+numba
+numpy
+matplotlib
+