From 6dfab4168a40b43e3fc4d879e75ee5d465b3855b Mon Sep 17 00:00:00 2001
From: Oskar Dahlberg <oskar.dahlberg@gmail.com>
Date: Mon, 22 Sep 2014 23:45:07 +0200
Subject: [PATCH] Fixes split, prefills vector with empty matrices

---
 src/Matrix.cc | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/Matrix.cc b/src/Matrix.cc
index 3a3fce0..ec62f3c 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -1658,9 +1658,16 @@ Matrix::Split(const v8::Arguments& args) {
 
     Matrix * self = ObjectWrap::Unwrap<Matrix>(args.This());
 
+    unsigned int size = self->mat.channels();
     vector<cv::Mat> channels;
+
+    // Split doesn't seem to work on empty vectors
+    for (int i = 0; i < size; i++) {
+      channels.push_back(cv::Mat());
+    }
+
     cv::split(self->mat, channels);
-    unsigned int size = channels.size();
+
     v8::Local<v8::Array> arrChannels = v8::Array::New(size);
     for (unsigned int i = 0; i < size; i++) {
         Local<Object> matObject = Matrix::constructor->GetFunction()->NewInstance();
@@ -1672,7 +1679,6 @@ Matrix::Split(const v8::Arguments& args) {
     return scope.Close(arrChannels);
 }
 
-
 // @author SergeMv
 // img.merge(arrChannels);
 Handle<Value>