Update app.py

app.py

@@ -12,7 +12,7 @@ os.system("pip3 install collections")
 os.system("pip3 install torchvision")
 os.system("pip3 install einops")
 aaaa=0
-os.system("pip3 install git+https://github.com/lucasb-eyer/pydensecrf.git")
+os.system("pip3 install pydensecrf")
 #os.system("pip install argparse")
 import pydensecrf.densecrf as dcrf
 from PIL import Image