From ea277717021694b104c0022110a98f6f28663aae Mon Sep 17 00:00:00 2001
From: eleweiz <47460581+eleweiz@users.noreply.github.com>
Date: Sun, 12 Jan 2020 21:05:47 -0500
Subject: [PATCH] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index e670fe6..bee20fd 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 This Matlab code is used to solve inverse scattering problem with convolutional neural network by BPS.
 Copyright © 2019, National University of Singapore, Zhun Wei. weizhun1010@gmail.com
 
+Please first download matconvnet: http://www.vlfeat.org/matconvnet/  remember to upzip it.
+
 (1) The Matlab code is used to implement back-propagation scheme (BPS) in
 Z. Wei and X. Chen, “Deep learning schemes for full-wave nonlinear inverse scattering problems,” IEEE Transactions on Geoscience and Remote Sensing, 57 (4), pp. 1849-1860, 2019. 
  This Matlab code is used to solve inverse scattering problem with convolutional neural network by BPS, which is written by Zhun WEI (weizhun1010@gmail. com).