diff --git a/openbr/core/boost.cpp b/openbr/core/boost.cpp
index 325cd21..ff06286 100644
--- a/openbr/core/boost.cpp
+++ b/openbr/core/boost.cpp
@@ -582,11 +582,9 @@ void CascadeBoostTrainData::get_ord_var_data( CvDTreeNode* n, int vi, float* ord
 
         // For this feature, have we precalculated all of the feature responses?
         if (vi < numPrecalcVal) {
-            for (int i = 0; i < nodeSampleCount; i++) {
-                int idx = (*sortedIndices)[i];
-                idx = sampleIndices[idx];
-                ordValuesBuf[i] = valCache.at<float>(vi, idx);
-            }
+            float *p = valCache.ptr<float>(vi);
+            for (int i = 0; i < nodeSampleCount; i++)
+                ordValuesBuf[i] = p[sampleIndices[(*sortedIndices)[i]]];
         } else {
             for (int i = 0; i < nodeSampleCount; i++) {
                 int idx = (*sortedIndices)[i];
@@ -762,7 +760,7 @@ void CascadeBoostTrainData::precalculate()
     parallel_for_(Range(minPrecalc, numPrecalcVal),
                   FeaturePrecalc(featureEvaluator, &valCache, sample_count));
 
-    cout << "Precalculation time (ms): " << time.elapsed() << endl;
+    cout << "Precalculation time (min): " << time.elapsed()/1000/60. <<  endl;
 }
 
 //-------------------------------- CascadeBoostTree ----------------------------------------
diff --git a/openbr/plugins/imgproc/if.cpp b/openbr/plugins/imgproc/if.cpp
index 229ab8c..800546b 100644
--- a/openbr/plugins/imgproc/if.cpp
+++ b/openbr/plugins/imgproc/if.cpp
@@ -22,12 +22,12 @@ class IfTransform : public MetaTransform
     BR_PROPERTY(QString, comparison, "e")
     BR_PROPERTY(bool, projectOnEmpty, false)
 
-    bool compare(const QString &metadata) const
+    bool compare(const QVariant &metadata) const
     {
         bool result, ok1 = true, ok2 = true;
 
-	if (comparison == "empty")
-	    result = metadata.isEmpty();
+        if (comparison == "empty")
+	    result = metadata.isNull() || (metadata.canConvert<QString>() && metadata.toString().isEmpty());
         else if (comparison == "e")
             result = metadata == value;
         else if (comparison == "ne")
@@ -41,7 +41,7 @@ class IfTransform : public MetaTransform
         else if (comparison == "ge")
             result = metadata.toFloat(&ok1) >= value.toFloat(&ok2);
         else if (comparison == "c") // contains
-            result = metadata.contains(value);
+            result = metadata.toString().contains(value);
         else
             qFatal("Unrecognized comparison string.");
 
@@ -57,14 +57,14 @@ public:
         if (transform->trainable) {
             TemplateList passed;
             for (int i=0; i<data.size(); i++)
-                if ((data[i].file.contains(key) || projectOnEmpty) && compare(data[i].file.get<QString>(key, QString())))
+                if ((data[i].file.contains(key) || projectOnEmpty) && compare(data[i].file.value(key)))
                     passed.append(data[i]);
             transform->train(passed);
         }
     }
 
     void project(const Template &src, Template &dst) const {
-        if ((src.file.contains(key) || projectOnEmpty) && compare(src.file.get<QString>(key, QString())))
+        if ((src.file.contains(key) || projectOnEmpty) && compare(src.file.value(key)))
             transform->project(src, dst);
         else
             dst = src;
@@ -73,7 +73,7 @@ public:
     void project(const TemplateList &src, TemplateList &dst) const {
         TemplateList ifTrue, ifFalse;
         foreach (const Template &t, src) {
-            if ((t.file.contains(key) || projectOnEmpty) && compare(t.file.get<QString>(key, QString())))
+            if ((t.file.contains(key) || projectOnEmpty) && compare(t.file.value(key)))
                 ifTrue.append(t);
             else
                 ifFalse.append(t);
diff --git a/openbr/plugins/imgproc/pad.cpp b/openbr/plugins/imgproc/pad.cpp
index 3ee7271..46e7a9e 100644
--- a/openbr/plugins/imgproc/pad.cpp
+++ b/openbr/plugins/imgproc/pad.cpp
@@ -36,7 +36,7 @@ private:
         int top, bottom, left, right;
         top = percent*src.m().rows; bottom = percent*src.m().rows;
         left = percent*src.m().cols; right = percent*src.m().cols;
-        OpenCVUtils::pad(src, dst, true, QMargins(top,bottom,left,right), true, true, border, value);
+        OpenCVUtils::pad(src, dst, true, QMargins(left, top, right, bottom), true, true, border, value);
     }
 };