Update app.py

app.py

@@ -50,7 +50,7 @@ def predict_image(pic):
     emotion_analysis(custom[0])
 
     x = np.array(x, 'float32')
-    x = x.reshape([48, 48]);
+    x = x.reshape([48, 48,1]);
 
     plt.gray()
     plt.imshow(show_img)