diff --git a/app/Operations/Quantification.cpp b/app/Operations/Quantification.cpp
index c9a084716baa359be1682c73725d3b9cc9e3daaf..e29730422654c474447f840b034ee4dd59614e7f 100644
--- a/app/Operations/Quantification.cpp
+++ b/app/Operations/Quantification.cpp
@@ -23,8 +23,8 @@
 using namespace std;
 using namespace imagein;
 
-Quantification::Quantification(int size_) {
-    this->size = size_;
+Quantification::Quantification(int size) {
+    this->size = size;
     threshold = new int[this->size - 1];
     values = new int[this->size];
 }
@@ -68,12 +68,6 @@ void Quantification::saveAs(std::string filename) {
     }
 }
 
-Quantifier::Quantifier(Quantification quant) {
-    for(int i = 0; i < N_MAX_THRESHOLD; ++i) {
-        values[i] = quant.valueOf(i);
-    }
-}
-
 Quantification Quantification::linearQuant(int size) {
 
     Quantification quant(size);
@@ -176,3 +170,9 @@ Quantification Quantification::nonLinearQuantOptimized(int size, const Image* im
     quant.values[size-1] = som_lum / nb_points + 0.5;
     return quant;
 }
+
+Quantifier::Quantifier(Quantification quant) {
+    for(int i = 0; i < N_MAX_THRESHOLD; ++i) {
+        values[i] = quant.valueOf(i);
+    }
+}
diff --git a/app/Operations/Quantification.h b/app/Operations/Quantification.h
index 67d71aad0399c4fc8c3861fea9d3dd4b5a82fc5a..a42d1958e5ee3c1a71f51c112a84374ada035367 100644
--- a/app/Operations/Quantification.h
+++ b/app/Operations/Quantification.h
@@ -24,17 +24,13 @@
 
 #define N_MAX_THRESHOLD 256
 
-struct Quantification {
-    static Quantification linearQuant(int size);
-    static Quantification nonLinearQuant(int size, const imagein::Image *image, unsigned int c);
-    static Quantification nonLinearQuantOptimized(int size, const imagein::Image *image, unsigned int c);
-
+class Quantification {
+public:
+    explicit Quantification(int size);
     explicit Quantification(std::string filename);
 
     void saveAs(std::string filename);
 
-    explicit Quantification(int size_);
-
     inline int valueOf(int value) const {
         for(int i = 0; i < this->size - 1; ++i) {
             if(value < this->threshold[i]) {
@@ -43,17 +39,23 @@ struct Quantification {
         }
         return this->values[this->size - 1];
     }
+
+    static Quantification linearQuant(int size);
+    static Quantification nonLinearQuant(int size, const imagein::Image *image, unsigned int c);
+    static Quantification nonLinearQuantOptimized(int size, const imagein::Image *image, unsigned int c);
+
     int size;
     int* threshold;
     int* values;
 };
 
-struct Quantifier {
+class Quantifier {
+public:
     Quantifier(Quantification quant);
     inline int valueOf(imagein::Image::depth_t value) {
         return this->values[value];
     }
-  private:
+private:
     int values[N_MAX_THRESHOLD];
 };