Update app.py

app.py

@@ -1,7 +1,21 @@
-import gradio as gr
+import os
+os.system("""python -m pip install -i https://mirrors.aliyun.com/pypi/simple/ --upgrade pip setuptools
+pip install -i https://mirrors.aliyun.com/pypi/simple/ gradio
+pip install -i https://mirrors.aliyun.com/pypi/simple/ cv2
+""")
+
 
-def greet(name):
-    return "Hello " + name + "!!"
-    
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
-iface.launch()
+
+import numpy as np
+import gradio as gr
+import cv2 
+ 
+def gray(input_img):
+    grayImage = cv2.cvtColor(input_img, cv2.COLOR_BGR2GRAY)
+    return grayImage
+ 
+input = gr.Image(height=300, width=300, label="Upload Image") #label 代表输入框的标题
+output = gr.Image()
+ 
+demo = gr.Interface(fn=gray, inputs=input, outputs = output)
+demo.launch(share=True)