diff --git a/app/Algorithms/Pyramid.cpp b/app/Algorithms/Pyramid.cpp
index fb2a39f32af658a31219ba8e746bfdbfa3d9ef68..72b7e49a8f34757ceb5ea25e379739625eab73f7 100644
--- a/app/Algorithms/Pyramid.cpp
+++ b/app/Algorithms/Pyramid.cpp
@@ -18,6 +18,7 @@
 */
 
 #include "Pyramid.h"
+#include "../Tools.h"
 #include <Algorithm/Filtering.h>
 #include <cstdio>
 #include <cstring>
@@ -658,7 +659,7 @@ string Pyramid::entropie_p(const uint8_t *pyra,int etage_f,int nbc,int nbl)
         j=j+taille_c*taille_l;
         taille_c=taille_c/2;
         taille_l=taille_l/2;
-        sprintf(buffer, "L'entropie de l'etage %d est %1f\n",i,h);
+        sprintf(buffer, QString(qApp->translate("Operations","L'entropie de l'etage %d est %1f\n")).toUtf8(),i,h);
         returnval = returnval + buffer;
     }
    return returnval;
diff --git a/app/Operations/Huffman.cpp b/app/Operations/Huffman.cpp
index 95c36ca655a6ecb25294ee96bf8eb56ad8295ec2..c1109803d80506b7a9ec8335aed6eb7fcccd2c08 100644
--- a/app/Operations/Huffman.cpp
+++ b/app/Operations/Huffman.cpp
@@ -18,6 +18,7 @@
 */
 
 #include "Huffman.h"
+#include "../Tools.h"
 #include <cstring>
 #include <cstdio>
 #include <cmath>
@@ -94,7 +95,7 @@ string Huffman::execute( const GrayscaleImage *im ) {
         sprintf(buffer, "--->%2d bits      Pi[%3d] = %7.5f\n",*(ilon+i),*(indicePi+i)-1,*(Pi+i));
         returnval = returnval + buffer;
     }
-    sprintf(buffer, "\n debit(huffman) = %.4f\n",nbbit);
+    sprintf(buffer, QString(qApp->translate("Operations","\n debit(huffman) = %.4f\n")).toUtf8(),nbbit);
     returnval = returnval + buffer;
 
     return returnval;
diff --git a/app/Operations/PyramidDialog.cpp b/app/Operations/PyramidDialog.cpp
index 0c04fc26f1c5924601a5afcee002a3edb9979ef2..79f6a42f5e4a582a256913e671363e2a3b7af7a5 100644
--- a/app/Operations/PyramidDialog.cpp
+++ b/app/Operations/PyramidDialog.cpp
@@ -38,23 +38,23 @@ Pyramid::Filtre PyramidDialog::getFilter(std::string &to_print) const {
     bool notFoundError = false;
     switch(ui->filterBox->currentIndex()) {
         case 1: notFoundError = !filters.getFromName("gaussien", filter); 
-                to_print = "Decomposition pyramidale avec filtre gaussien : \n";
+                to_print = QString(qApp->translate("PyramidDialog","Decomposition pyramidale avec filtre gaussien :\n")).toStdString();
                 break;
         case 2: notFoundError = !filters.getFromName("trimodal", filter); 
-                to_print = "Decomposition pyramidale avec filtre trimodal : \n";
+                to_print = QString(qApp->translate("PyramidDialog","Decomposition pyramidale avec filtre trimodal :\n")).toStdString();
                 break;
         case 3: notFoundError = !filters.getFromName("rectangulaire", filter); 
-                to_print = "Decomposition pyramidale avec filtre rectangulaire : \n";
+                to_print = QString(qApp->translate("PyramidDialog","Decomposition pyramidale avec filtre rectangulaire :\n")).toStdString();
                 break;
         case 4: notFoundError = !filters.getFromName("qmf", filter); 
-                to_print = "Decomposition pyramidale avec filtre qmf : \n";
+                to_print = QString(qApp->translate("PyramidDialog","Decomposition pyramidale avec filtre qmf :\n")).toStdString();
                 break;
         default: notFoundError = !filters.getFromName("triangulaire", filter); 
-                to_print = "Decomposition pyramidale avec filtre triangulaire : \n";
+                to_print = QString(qApp->translate("PyramidDialog","Decomposition pyramidale avec filtre triangulaire :\n")).toStdString();
                 break;
     }
     if(notFoundError){
-        to_print = "Filtre non trouvé. Décomposition avec filtre gaussien par défaut. \n";
+        to_print = QString(qApp->translate("PyramidDialog","Filtre non trouvé. Décomposition avec filtre gaussien par défaut. \n")).toStdString();
     }
     return filter;
 }
diff --git a/app/Operations/PyramidOp.cpp b/app/Operations/PyramidOp.cpp
index a2f0dbf193b8d6bdd8c243ed1ac761811921ee6d..79392e729b55c1b2500fc291f63b420271e7ab3e 100644
--- a/app/Operations/PyramidOp.cpp
+++ b/app/Operations/PyramidOp.cpp
@@ -61,33 +61,26 @@ void PyramidOp::operator()(const imagein::Image* img, const std::map<const image
     string e;
     Pyramid::Filtre filtre = dialog->getFilter(e);
     QString titleFilter;
-    QString titleType;
-
-    if(e=="Decomposition pyramidale avec filtre gaussien : \n") titleType = QString(qApp->translate("Operations","Gaussian filter"));
-    else if(e=="Decomposition pyramidale avec filtre trimodal : \n") titleType = QString(qApp->translate("Operations","Trimodal filter"));
-    else if(e=="Decomposition pyramidale avec filtre rectangulaire : \n") titleType = QString(qApp->translate("Operations","Rectangular filter"));
-    else if(e=="Decomposition pyramidale avec filtre qmf : \n") titleType = QString(qApp->translate("Operations","QMF filter"));
-    else if(e=="Decomposition pyramidale avec filtre triangulaire : \n") titleType = QString(qApp->translate("Operations","Triangular filter"));
 
     try {
         if(dialog->onlyOneStep()) {
             if(dialog->isGaussian()) {
                 resImg = Pyramid::n_pyram_g(image, dialog->onlyStep(), filtre);
-                titleFilter = QString(qApp->translate("Operations","Gaussian pyramidal decomposition"));
+                titleFilter = QString(qApp->translate("Operations","Gaussian"));
             }
             else {
                 resImg = Pyramid::n_pyram_l(image, dialog->onlyStep(), filtre);
-                titleFilter = QString(qApp->translate("Operations","Laplacian pyramidal decomposition"));
+                titleFilter = QString(qApp->translate("Operations","Laplacian"));
             }
         }
         else {
             if(dialog->isGaussian()) {
                 resImg = Pyramid::pyram_g(image, dialog->getNbStep(), filtre, s);
-                titleFilter = QString(qApp->translate("Operations","Gaussian pyramidal decomposition"));
+                titleFilter = QString(qApp->translate("Operations","Gaussian"));
             }
             else {
                 resImg = Pyramid::pyram_l(image, dialog->getNbStep(), filtre, s);
-                titleFilter = QString(qApp->translate("Operations","Laplacian pyramidal decomposition"));
+                titleFilter = QString(qApp->translate("Operations","Laplacian"));
             }
         }
     }
@@ -95,7 +88,9 @@ void PyramidOp::operator()(const imagein::Image* img, const std::map<const image
         QMessageBox::critical(NULL, "Error", QString(e));
         return;
     }
-    outImage(resImg, titleFilter.toStdString() + " - " + titleType.toStdString());
+
+    string winTitle = e;
+    outImage(resImg, titleFilter.toStdString() + " - " + winTitle.erase(e.length()-3, e.length()));
     outText(e);
     outText(s);
 }
diff --git a/app/imageinsa_en.ts b/app/imageinsa_en.ts
index b637bd437e57e250e800e77553e67b4eb6d1de35..a07a6758c83c4c1cbf4fce7ee421728aa355b54f 100644
--- a/app/imageinsa_en.ts
+++ b/app/imageinsa_en.ts
@@ -1364,41 +1364,44 @@ Channel %d :
         <translation>The image width must equal the image height.</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="66"/>
+        <location filename="Operations/PyramidOp.cpp" line="69"/>
+        <location filename="Operations/PyramidOp.cpp" line="79"/>
+        <source>Gaussian</source>
+        <translation>Gaussian</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidOp.cpp" line="73"/>
+        <location filename="Operations/PyramidOp.cpp" line="83"/>
+        <source>Laplacian</source>
+        <translation>Laplacian</translation>
+    </message>
+    <message>
         <source>Gaussian filter</source>
-        <translation>Gaussian filter</translation>
+        <translation type="vanished">Gaussian filter</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="67"/>
         <source>Trimodal filter</source>
-        <translation>Trimodal filter</translation>
+        <translation type="vanished">Trimodal filter</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="68"/>
         <source>Rectangular filter</source>
-        <translation>Rectangular filter</translation>
+        <translation type="vanished">Rectangular filter</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="69"/>
         <source>QMF filter</source>
-        <translation>QMF filter</translation>
+        <translation type="vanished">QMF filter</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="70"/>
         <source>Triangular filter</source>
-        <translation>Triangular filter</translation>
+        <translation type="vanished">Triangular filter</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="76"/>
-        <location filename="Operations/PyramidOp.cpp" line="86"/>
         <source>Gaussian pyramidal decomposition</source>
-        <translation>Gaussian pyramidal decomposition</translation>
+        <translation type="vanished">Gaussian pyramidal decomposition</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="80"/>
-        <location filename="Operations/PyramidOp.cpp" line="90"/>
         <source>Laplacian pyramidal decomposition</source>
-        <translation>Laplacian pyramidal decomposition</translation>
+        <translation type="vanished">Laplacian pyramidal decomposition</translation>
     </message>
     <message>
         <location filename="Operations/ClassResultOp.cpp" line="37"/>
@@ -1430,6 +1433,21 @@ Channel %d :
         <source>DPCM Encoding</source>
         <translation>DPCM Encoding</translation>
     </message>
+    <message>
+        <location filename="Operations/Huffman.cpp" line="98"/>
+        <source>
+ debit(huffman) = %.4f
+</source>
+        <translation>
+ Flow(Huffman) = %.4f</translation>
+    </message>
+    <message>
+        <location filename="Algorithms/Pyramid.cpp" line="662"/>
+        <source>L&apos;entropie de l&apos;etage %d est %1f
+</source>
+        <translation>The stage %d entropy is %1f
+</translation>
+    </message>
     <message>
         <location filename="Operations/MedianOp.cpp" line="12"/>
         <location filename="Operations/MedianOp.cpp" line="36"/>
@@ -1606,6 +1624,48 @@ Channel %d :
         <source>Create only one step :</source>
         <translation>Create only one step :</translation>
     </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="41"/>
+        <source>Decomposition pyramidale avec filtre gaussien :
+</source>
+        <translation>Pyramidal decomposition with gaussian filter :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="44"/>
+        <source>Decomposition pyramidale avec filtre trimodal :
+</source>
+        <translation>Pyramidal decomposition with trimodal filter :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="47"/>
+        <source>Decomposition pyramidale avec filtre rectangulaire :
+</source>
+        <translation>Pyramidal decomposition with rectangular filter :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="50"/>
+        <source>Decomposition pyramidale avec filtre qmf :
+</source>
+        <translation>Pyramidal decomposition with QMF filter :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="53"/>
+        <source>Decomposition pyramidale avec filtre triangulaire :
+</source>
+        <translation>Pyramidal decomposition with triangular filter :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="57"/>
+        <source>Filtre non trouvé. Décomposition avec filtre gaussien par défaut. 
+</source>
+        <translation>Filter not found. Default decomposition with gaussian filter.
+</translation>
+    </message>
 </context>
 <context>
     <name>QuantificationDialog</name>
@@ -1642,7 +1702,7 @@ Channel %d :
     <message>
         <location filename="Operations/QuantificationDialog.cpp" line="59"/>
         <source>LloydMax</source>
-        <translation></translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="Operations/QuantificationDialog.cpp" line="61"/>
diff --git a/app/imageinsa_fr.ts b/app/imageinsa_fr.ts
index 64a4b47ab884f8f76388ce5d8f3255dde4a24daa..ae4ecc8263d02fd0485b98e8c832f3680c87284f 100644
--- a/app/imageinsa_fr.ts
+++ b/app/imageinsa_fr.ts
@@ -1352,41 +1352,44 @@ Canal %d :
         <translation>La largeur de l&apos;image doit être égale à sa hauteur.</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="66"/>
+        <location filename="Operations/PyramidOp.cpp" line="69"/>
+        <location filename="Operations/PyramidOp.cpp" line="79"/>
+        <source>Gaussian</source>
+        <translation>Gaussien</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidOp.cpp" line="73"/>
+        <location filename="Operations/PyramidOp.cpp" line="83"/>
+        <source>Laplacian</source>
+        <translation>Laplacien</translation>
+    </message>
+    <message>
         <source>Gaussian filter</source>
-        <translation>Filtre gaussien</translation>
+        <translation type="vanished">Filtre gaussien</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="67"/>
         <source>Trimodal filter</source>
-        <translation>Filtre trimodal</translation>
+        <translation type="vanished">Filtre trimodal</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="68"/>
         <source>Rectangular filter</source>
-        <translation>Filtre rectangulaire</translation>
+        <translation type="vanished">Filtre rectangulaire</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="69"/>
         <source>QMF filter</source>
-        <translation>QMF Filter</translation>
+        <translation type="vanished">QMF Filter</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="70"/>
         <source>Triangular filter</source>
-        <translation>Filtre triangulaire</translation>
+        <translation type="vanished">Filtre triangulaire</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="76"/>
-        <location filename="Operations/PyramidOp.cpp" line="86"/>
         <source>Gaussian pyramidal decomposition</source>
-        <translation>Décomposition pyramidale gaussienne</translation>
+        <translation type="vanished">Décomposition pyramidale gaussienne</translation>
     </message>
     <message>
-        <location filename="Operations/PyramidOp.cpp" line="80"/>
-        <location filename="Operations/PyramidOp.cpp" line="90"/>
         <source>Laplacian pyramidal decomposition</source>
-        <translation>Décomposition pyamidale laplacienne</translation>
+        <translation type="vanished">Décomposition pyamidale laplacienne</translation>
     </message>
     <message>
         <location filename="Operations/ClassResultOp.cpp" line="37"/>
@@ -1418,6 +1421,21 @@ Canal %d :
         <source>DPCM Encoding</source>
         <translation>Encodage MICD</translation>
     </message>
+    <message>
+        <location filename="Operations/Huffman.cpp" line="98"/>
+        <source>
+ debit(huffman) = %.4f
+</source>
+        <translation>
+ Débit(Huffman) = %.4f</translation>
+    </message>
+    <message>
+        <location filename="Algorithms/Pyramid.cpp" line="662"/>
+        <source>L&apos;entropie de l&apos;etage %d est %1f
+</source>
+        <translation>L&apos;entropie de l&apos;étage %d est %1f
+</translation>
+    </message>
     <message>
         <location filename="Operations/EntropyOp.cpp" line="35"/>
         <source>Calcul d&apos;entropie (image standard)</source>
@@ -1594,6 +1612,48 @@ Canal %d :
         <source>Create only one step :</source>
         <translation>Créer unique l&apos;étage : </translation>
     </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="41"/>
+        <source>Decomposition pyramidale avec filtre gaussien :
+</source>
+        <translation>Décomposition pyramidale avec filtre gaussien :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="44"/>
+        <source>Decomposition pyramidale avec filtre trimodal :
+</source>
+        <translation>Décomposition pyramidale avec filtre trimodal :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="47"/>
+        <source>Decomposition pyramidale avec filtre rectangulaire :
+</source>
+        <translation>Décomposition pyramidale avec filtre rectangulaire :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="50"/>
+        <source>Decomposition pyramidale avec filtre qmf :
+</source>
+        <translation>Décomposition pyramidale avec filtre QMF :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="53"/>
+        <source>Decomposition pyramidale avec filtre triangulaire :
+</source>
+        <translation>Décomposition pyramidale avec filtre rectangulaire :
+</translation>
+    </message>
+    <message>
+        <location filename="Operations/PyramidDialog.cpp" line="57"/>
+        <source>Filtre non trouvé. Décomposition avec filtre gaussien par défaut. 
+</source>
+        <translation>Filtre non trouvé. Décomposition avec filtre gaussien par défaut. 
+</translation>
+    </message>
 </context>
 <context>
     <name>QuantificationDialog</name>
@@ -1630,7 +1690,7 @@ Canal %d :
     <message>
         <location filename="Operations/QuantificationDialog.cpp" line="59"/>
         <source>LloydMax</source>
-        <translation></translation>
+        <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="Operations/QuantificationDialog.cpp" line="61"/>