type cast

app.py

@@ -17,14 +17,17 @@ def create_fractal_noise(input_seed,input_size,res,n_octaves,persistence):
     n3=np.repeat(n[:,:,np.newaxis],3,axis=2)
     #change from [-1,1] to [0,255]
     n3=(n3+1)/2*255
+    #change type to int64
+    n3=n3.astype(np.int64)
     return n3
 
 demo = gr.Blocks()
 
 with demo:
-  gr.Markdown("<h1><center>LiteDungeon</center></h1>")
+  gr.Markdown("<h1><center>fractalNoise</center></h1>")
   gr.Markdown(
         "<div>Create fractal-like noise (useful for map generation and such)</div>"
+        "<div>Using pvigier's <a href=https://github.com/pvigier/perlin-numpy>perlin-numpy</a></div>"
     )