diff --git a/android/src/main/java/com/documentscanner/views/OpenNoteCameraView.java b/android/src/main/java/com/documentscanner/views/OpenNoteCameraView.java
index 3420014..1ee8ee2 100755
--- a/android/src/main/java/com/documentscanner/views/OpenNoteCameraView.java
+++ b/android/src/main/java/com/documentscanner/views/OpenNoteCameraView.java
@@ -135,6 +135,9 @@ public void setSaveOnDevice(Boolean saveOnDevice) {
 
     public void setDetectionCountBeforeCapture(int numberOfRectangles) {
         this.numberOfRectangles = numberOfRectangles;
+                if (mImageProcessor != null) {
+            mImageProcessor.setNumOfRectangles(numberOfRectangles);
+        }
     }
 
     public void setDurationBetweenCaptures(double durationBetweenCaptures) {