From 0e1d890a0ee8a66d7ec7d7499e4cf68f1ee05a1c Mon Sep 17 00:00:00 2001
From: Brendan K <bklare@gmail.com>
Date: Tue, 3 Nov 2015 10:32:17 -0500
Subject: [PATCH] Transform to randomly sample a gallery

---
 openbr/plugins/metadata/randomtemplates.cpp | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+), 0 deletions(-)
 create mode 100644 openbr/plugins/metadata/randomtemplates.cpp

diff --git a/openbr/plugins/metadata/randomtemplates.cpp b/openbr/plugins/metadata/randomtemplates.cpp
new file mode 100644
index 0000000..466a3a4
--- /dev/null
+++ b/openbr/plugins/metadata/randomtemplates.cpp
@@ -0,0 +1,34 @@
+#include <openbr/plugins/openbr_internal.h>
+
+namespace br
+{
+
+/*!
+ * \ingroup transforms
+ * \author Brendan Klare \cite bklare
+ * \brief Randomly sample templates from a gallery
+ */
+class RandomTemplatesTransform : public UntrainableMetaTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(float percent READ get_percent WRITE set_percent RESET reset_percent)
+    BR_PROPERTY(float, percent, .01)
+
+    void project(const Template &src, Template &dst) const {
+		qFatal("Not supported in RandomTemplates.");
+    }
+
+    void project(const TemplateList &src, TemplateList &dst) const {
+		for (int i = 0; i < src.size(); i++) {
+			const float r = static_cast <float> (rand()) / static_cast <float> (RAND_MAX);
+			if (r <= percent)
+				dst.append(src[i]);
+		}
+    }
+};
+BR_REGISTER(Transform, RandomTemplatesTransform)
+
+} // namespace br
+
+#include "imgproc/randomtemplates.moc"
+
--
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