diff --git a/imageviewer-qt4.cpp b/imageviewer-qt4.cpp
index afe63ba..efe81e7 100644
--- a/imageviewer-qt4.cpp
+++ b/imageviewer-qt4.cpp
@@ -374,6 +374,14 @@ void ImageViewer::partialLinearHistogrammAdaption() {
   
   // TODO
   
+  // Get cumulative histogramm from reference image
+  // Split [0,255] into n parts (slider)
+  // fetch the values for the n parts, do some math and create the histogramm map
+  
+  // Apply the histogramm map (see succeeding Histogramm Adaption)
+  
+  
+  
   logFile << "done." << std::endl;
   renewLogging();
 }