From 4ab76492b01a7913533ae4ff1f58022b24307c8c Mon Sep 17 00:00:00 2001
From: YadiraF <sheldol.f@live.com>
Date: Sat, 28 Apr 2018 22:26:06 +0800
Subject: [PATCH] add front func

---
 utils/rotate_vertices.py | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 utils/rotate_vertices.py

diff --git a/utils/rotate_vertices.py b/utils/rotate_vertices.py
new file mode 100644
index 0000000..73c42ee
--- /dev/null
+++ b/utils/rotate_vertices.py
@@ -0,0 +1,11 @@
+import numpy as np
+
+# import scipy.io as 
+def frontalize(vertices):
+    canonical_vertices = np.load('Data/uv-data/canonical_vertices.npy')
+
+    vertices_homo = np.hstack((vertices, np.ones([vertices.shape[0],1]))) #n x 4
+    P = np.linalg.lstsq(vertices_homo, canonical_vertices)[0].T # Affine matrix. 3 x 4
+    front_vertices = vertices_homo.dot(P.T)
+
+    return front_vertices