diff --git a/openbr/plugins/crop.cpp b/openbr/plugins/crop.cpp
index 456cc50..a4df76a 100644
--- a/openbr/plugins/crop.cpp
+++ b/openbr/plugins/crop.cpp
@@ -90,6 +90,25 @@ BR_REGISTER(Transform, LimitSizeTransform)
 
 /*!
  * \ingroup transforms
+ * \brief Enforce a multiple of \em n columns.
+ * \author Josh Klontz \cite jklontz
+ */
+class ModTransform : public UntrainableTransform
+{
+    Q_OBJECT
+    Q_PROPERTY(int n READ get_n WRITE set_n RESET reset_n STORED false)
+    BR_PROPERTY(int, n, 1)
+
+    void project(const Template &src, Template &dst) const
+    {
+        dst = Mat(src, Rect(0,0,n*(src.m().cols/n),src.m().rows));
+    }
+};
+
+BR_REGISTER(Transform, ModTransform)
+
+/*!
+ * \ingroup transforms
  * \brief Crop out black borders
  * \author Josh Klontz \cite jklontz
  */