Update app.py

app.py

@@ -224,6 +224,10 @@ def cellpose_segment(filepath, resize = 1000,max_iter = 250):
     flows = flows.resize((Lx, Ly), resample  = Image.BICUBIC)
 
     fname_out  = os.path.splitext(filepath[-1])[0]+"_outlines.png"
+    try:
+        os.remove(fname_out)
+    except:
+        continue
     outpix.save(fname_out) #"outlines.png")
     print(fname_out)