diff --git a/src/android/AndroidManifest.xml b/src/android/AndroidManifest.xml
index 34fccf4..7c92807 100644
--- a/src/android/AndroidManifest.xml
+++ b/src/android/AndroidManifest.xml
@@ -30,4 +30,7 @@
         
     </application>
 	<uses-permission android:name="android.permission.CAMERA" />
+	<uses-feature android:name="android.hardware.camera"
+                  android:required="true" />
+	
 </manifest>
diff --git a/src/android/res/drawable-hdpi/colorise.jpg b/src/android/res/drawable-hdpi/colorise.jpg
new file mode 100644
index 0000000..6002eaf
Binary files /dev/null and b/src/android/res/drawable-hdpi/colorise.jpg differ
diff --git a/src/android/res/drawable-hdpi/couthenans.jpg b/src/android/res/drawable-hdpi/couthenans.jpg
new file mode 100644
index 0000000..6f297aa
Binary files /dev/null and b/src/android/res/drawable-hdpi/couthenans.jpg differ
diff --git a/src/android/res/drawable-hdpi/custom_opacity_bar.xml b/src/android/res/drawable-hdpi/custom_opacity_bar.xml
new file mode 100644
index 0000000..4a86a09
--- /dev/null
+++ b/src/android/res/drawable-hdpi/custom_opacity_bar.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:id="@android:id/background">
+	<shape>
+	   <corners android:radius="5dip" />
+	   <gradient
+		android:startColor="#ffffffff"
+		android:centerColor="#ffdddddd"
+		android:centerY="0.50"
+		android:endColor="#ffffffff"
+		android:angle="270" />
+	</shape>
+  </item>
+  <item android:id="@android:id/secondaryProgress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#FBFCFA"
+		     android:endColor="#FBFCFA"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+  <item android:id="@android:id/progress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#777777"
+		     android:endColor="#777777"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+</layer-list>
\ No newline at end of file
diff --git a/src/android/res/drawable-hdpi/hericourt.jpg b/src/android/res/drawable-hdpi/hericourt.jpg
new file mode 100644
index 0000000..d8cd591
Binary files /dev/null and b/src/android/res/drawable-hdpi/hericourt.jpg differ
diff --git a/src/android/res/drawable-hdpi/normal.jpg b/src/android/res/drawable-hdpi/normal.jpg
new file mode 100644
index 0000000..8e97385
Binary files /dev/null and b/src/android/res/drawable-hdpi/normal.jpg differ
diff --git a/src/android/res/drawable-hdpi/paysage.jpg b/src/android/res/drawable-hdpi/paysage.jpg
new file mode 100644
index 0000000..1b9ff16
Binary files /dev/null and b/src/android/res/drawable-hdpi/paysage.jpg differ
diff --git a/src/android/res/drawable-hdpi/thumb.xml b/src/android/res/drawable-hdpi/thumb.xml
new file mode 100644
index 0000000..5c01649
--- /dev/null
+++ b/src/android/res/drawable-hdpi/thumb.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval" >
+
+    <gradient
+        android:angle="270"
+        android:endColor="#e26760"
+        android:startColor="#e26760"
+    />
+
+    <size
+        android:height="40dp"
+        android:width="40dp" />
+
+</shape>
\ No newline at end of file
diff --git a/src/android/res/drawable-ldpi/custom_opacity_bar.xml b/src/android/res/drawable-ldpi/custom_opacity_bar.xml
new file mode 100644
index 0000000..6a987fc
--- /dev/null
+++ b/src/android/res/drawable-ldpi/custom_opacity_bar.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:id="@android:id/secondaryProgress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#80ffd300"
+		     android:centerColor="#80ffb600"
+		     android:centerY="0.75"
+		     android:endColor="#a0ffcb00"
+		     android:angle="270" />
+	   </shape>
+	</clip>
+  </item>
+  <item android:id="@android:id/progress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#ffffd300"
+		     android:centerColor="#ffffb600"
+		     android:centerY="0.75"
+		     android:endColor="#ffffcb00"
+		     android:angle="270" />
+	   </shape>
+	</clip>
+  </item>
+</layer-list>
\ No newline at end of file
diff --git a/src/android/res/drawable-mdpi/colorise.jpg b/src/android/res/drawable-mdpi/colorise.jpg
new file mode 100644
index 0000000..6002eaf
Binary files /dev/null and b/src/android/res/drawable-mdpi/colorise.jpg differ
diff --git a/src/android/res/drawable-mdpi/couthenans.jpg b/src/android/res/drawable-mdpi/couthenans.jpg
new file mode 100644
index 0000000..6f297aa
Binary files /dev/null and b/src/android/res/drawable-mdpi/couthenans.jpg differ
diff --git a/src/android/res/drawable-mdpi/custom_opacity_bar.xml b/src/android/res/drawable-mdpi/custom_opacity_bar.xml
new file mode 100644
index 0000000..4a86a09
--- /dev/null
+++ b/src/android/res/drawable-mdpi/custom_opacity_bar.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:id="@android:id/background">
+	<shape>
+	   <corners android:radius="5dip" />
+	   <gradient
+		android:startColor="#ffffffff"
+		android:centerColor="#ffdddddd"
+		android:centerY="0.50"
+		android:endColor="#ffffffff"
+		android:angle="270" />
+	</shape>
+  </item>
+  <item android:id="@android:id/secondaryProgress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#FBFCFA"
+		     android:endColor="#FBFCFA"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+  <item android:id="@android:id/progress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#777777"
+		     android:endColor="#777777"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+</layer-list>
\ No newline at end of file
diff --git a/src/android/res/drawable-mdpi/hericourt.jpg b/src/android/res/drawable-mdpi/hericourt.jpg
new file mode 100644
index 0000000..d8cd591
Binary files /dev/null and b/src/android/res/drawable-mdpi/hericourt.jpg differ
diff --git a/src/android/res/drawable-mdpi/normal.jpg b/src/android/res/drawable-mdpi/normal.jpg
new file mode 100644
index 0000000..8e97385
Binary files /dev/null and b/src/android/res/drawable-mdpi/normal.jpg differ
diff --git a/src/android/res/drawable-mdpi/paysage.jpg b/src/android/res/drawable-mdpi/paysage.jpg
new file mode 100644
index 0000000..1b9ff16
Binary files /dev/null and b/src/android/res/drawable-mdpi/paysage.jpg differ
diff --git a/src/android/res/drawable-mdpi/thumb.xml b/src/android/res/drawable-mdpi/thumb.xml
new file mode 100644
index 0000000..5c01649
--- /dev/null
+++ b/src/android/res/drawable-mdpi/thumb.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval" >
+
+    <gradient
+        android:angle="270"
+        android:endColor="#e26760"
+        android:startColor="#e26760"
+    />
+
+    <size
+        android:height="40dp"
+        android:width="40dp" />
+
+</shape>
\ No newline at end of file
diff --git a/src/android/res/drawable-xhdpi/colorise.jpg b/src/android/res/drawable-xhdpi/colorise.jpg
new file mode 100644
index 0000000..6002eaf
Binary files /dev/null and b/src/android/res/drawable-xhdpi/colorise.jpg differ
diff --git a/src/android/res/drawable-xhdpi/couthenans.jpg b/src/android/res/drawable-xhdpi/couthenans.jpg
new file mode 100644
index 0000000..6f297aa
Binary files /dev/null and b/src/android/res/drawable-xhdpi/couthenans.jpg differ
diff --git a/src/android/res/drawable-xhdpi/custom_opacity_bar.xml b/src/android/res/drawable-xhdpi/custom_opacity_bar.xml
new file mode 100644
index 0000000..4a86a09
--- /dev/null
+++ b/src/android/res/drawable-xhdpi/custom_opacity_bar.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:id="@android:id/background">
+	<shape>
+	   <corners android:radius="5dip" />
+	   <gradient
+		android:startColor="#ffffffff"
+		android:centerColor="#ffdddddd"
+		android:centerY="0.50"
+		android:endColor="#ffffffff"
+		android:angle="270" />
+	</shape>
+  </item>
+  <item android:id="@android:id/secondaryProgress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#FBFCFA"
+		     android:endColor="#FBFCFA"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+  <item android:id="@android:id/progress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#777777"
+		     android:endColor="#777777"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+</layer-list>
\ No newline at end of file
diff --git a/src/android/res/drawable-xhdpi/hericourt.jpg b/src/android/res/drawable-xhdpi/hericourt.jpg
new file mode 100644
index 0000000..d8cd591
Binary files /dev/null and b/src/android/res/drawable-xhdpi/hericourt.jpg differ
diff --git a/src/android/res/drawable-xhdpi/normal.jpg b/src/android/res/drawable-xhdpi/normal.jpg
new file mode 100644
index 0000000..8e97385
Binary files /dev/null and b/src/android/res/drawable-xhdpi/normal.jpg differ
diff --git a/src/android/res/drawable-xhdpi/paysage.jpg b/src/android/res/drawable-xhdpi/paysage.jpg
new file mode 100644
index 0000000..1b9ff16
Binary files /dev/null and b/src/android/res/drawable-xhdpi/paysage.jpg differ
diff --git a/src/android/res/drawable-xhdpi/thumb.xml b/src/android/res/drawable-xhdpi/thumb.xml
new file mode 100644
index 0000000..5c01649
--- /dev/null
+++ b/src/android/res/drawable-xhdpi/thumb.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval" >
+
+    <gradient
+        android:angle="270"
+        android:endColor="#e26760"
+        android:startColor="#e26760"
+    />
+
+    <size
+        android:height="40dp"
+        android:width="40dp" />
+
+</shape>
\ No newline at end of file
diff --git a/src/android/res/drawable-xxhdpi/colorise.jpg b/src/android/res/drawable-xxhdpi/colorise.jpg
new file mode 100644
index 0000000..6002eaf
Binary files /dev/null and b/src/android/res/drawable-xxhdpi/colorise.jpg differ
diff --git a/src/android/res/drawable-xxhdpi/couthenans.jpg b/src/android/res/drawable-xxhdpi/couthenans.jpg
new file mode 100644
index 0000000..6f297aa
Binary files /dev/null and b/src/android/res/drawable-xxhdpi/couthenans.jpg differ
diff --git a/src/android/res/drawable-xxhdpi/custom_opacity_bar.xml b/src/android/res/drawable-xxhdpi/custom_opacity_bar.xml
new file mode 100644
index 0000000..4a86a09
--- /dev/null
+++ b/src/android/res/drawable-xxhdpi/custom_opacity_bar.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:id="@android:id/background">
+	<shape>
+	   <corners android:radius="5dip" />
+	   <gradient
+		android:startColor="#ffffffff"
+		android:centerColor="#ffdddddd"
+		android:centerY="0.50"
+		android:endColor="#ffffffff"
+		android:angle="270" />
+	</shape>
+  </item>
+  <item android:id="@android:id/secondaryProgress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#FBFCFA"
+		     android:endColor="#FBFCFA"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+  <item android:id="@android:id/progress">
+	<clip>
+	   <shape>
+		<corners android:radius="5dip" />
+		<gradient
+		     android:startColor="#777777"
+		     android:endColor="#777777"
+		     android:angle="90" />
+	   </shape>
+	</clip>
+  </item>
+</layer-list>
\ No newline at end of file
diff --git a/src/android/res/drawable-xxhdpi/hericourt.jpg b/src/android/res/drawable-xxhdpi/hericourt.jpg
new file mode 100644
index 0000000..d8cd591
Binary files /dev/null and b/src/android/res/drawable-xxhdpi/hericourt.jpg differ
diff --git a/src/android/res/drawable-xxhdpi/normal.jpg b/src/android/res/drawable-xxhdpi/normal.jpg
new file mode 100644
index 0000000..8e97385
Binary files /dev/null and b/src/android/res/drawable-xxhdpi/normal.jpg differ
diff --git a/src/android/res/drawable-xxhdpi/paysage.jpg b/src/android/res/drawable-xxhdpi/paysage.jpg
new file mode 100644
index 0000000..1b9ff16
Binary files /dev/null and b/src/android/res/drawable-xxhdpi/paysage.jpg differ
diff --git a/src/android/res/drawable-xxhdpi/thumb.xml b/src/android/res/drawable-xxhdpi/thumb.xml
new file mode 100644
index 0000000..5c01649
--- /dev/null
+++ b/src/android/res/drawable-xxhdpi/thumb.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval" >
+
+    <gradient
+        android:angle="270"
+        android:endColor="#e26760"
+        android:startColor="#e26760"
+    />
+
+    <size
+        android:height="40dp"
+        android:width="40dp" />
+
+</shape>
\ No newline at end of file
diff --git a/src/android/res/layout/activity_camera_view.xml b/src/android/res/layout/activity_camera_view.xml
index 338e5b3..57ba8d2 100644
--- a/src/android/res/layout/activity_camera_view.xml
+++ b/src/android/res/layout/activity_camera_view.xml
@@ -2,28 +2,122 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:layout_marginTop="0dp"
+    android:paddingTop="0dp"
     tools:context="org.geneanet.customcamera.CameraView" >
     
     <FrameLayout
     android:id="@+id/camera_preview"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent">
+
     </FrameLayout>
 
-    <ImageView
-        android:id="@+id/imageView2"
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:alpha="0.5"
-        android:contentDescription="@string/sss"
-        android:src="@drawable/labs" />
+        android:orientation="horizontal" >
 
-	<Button
-		android:id="@+id/button_capture"
-	    android:text="@string/capture"
-	    android:layout_width="wrap_content"
-	    android:layout_height="wrap_content"
-	    android:layout_gravity="center"
-	    />
+        <FrameLayout
+            android:layout_width="fill_parent"
+            android:layout_height="fill_parent" >
+
+            <ImageView
+                android:id="@+id/normal"
+                android:layout_width="fill_parent"
+                android:layout_height="fill_parent"
+                android:alpha="0.2"
+                android:contentDescription="@string/descImage"
+                android:scaleType="fitXY"
+                android:src="@drawable/normal" />
+
+            <ImageView
+                android:id="@+id/colorise"
+                android:layout_width="fill_parent"
+                android:layout_height="fill_parent"
+                android:alpha="0"
+                android:contentDescription="@string/descImage"
+                android:scaleType="fitXY"
+                android:src="@drawable/colorise" />
+
+            <ImageView
+                android:id="@+id/paysage"
+                android:layout_width="fill_parent"
+                android:layout_height="fill_parent"
+                android:alpha="0"
+                android:contentDescription="@string/descImage"
+                android:rotation="90"
+                android:src="@drawable/paysage" />
+
+            <ImageView
+                android:id="@+id/couthenans"
+                android:layout_width="fill_parent"
+                android:layout_height="fill_parent"
+                android:alpha="0"
+                android:contentDescription="@string/descImage"
+                android:rotation="90"
+                android:src="@drawable/couthenans" />
+
+            <ImageView
+                android:id="@+id/hericourt"
+                android:layout_width="fill_parent"
+                android:layout_height="fill_parent"
+                android:alpha="0"
+                android:contentDescription="@string/descImage"
+                android:rotation="90"
+                android:src="@drawable/hericourt" />
+
+        </FrameLayout>
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="fill_parent"
+        android:layout_height="match_parent"
+        android:layout_alignParentLeft="false"
+        android:layout_alignParentRight="false"
+        android:layout_alignParentTop="false"
+        android:layout_centerHorizontal="false"
+        android:layout_centerInParent="false"
+        android:orientation="horizontal" >
+
+        <Button
+            android:id="@+id/Miniature"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom"
+            android:contentDescription="@string/BoutonMiniature"
+            android:onClick="showMiniature"
+            android:text="@string/Miniature" />
+
+        <Button
+            android:id="@+id/capture"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom"
+            android:layout_weight="150"
+            android:minWidth="0dp"
+            android:text="@string/PHOTO" />
+
+        <org.geneanet.customcamera.utils.VerticalSeekBar
+            android:id="@+id/switchOpacity"
+            android:layout_width="wrap_content"
+            android:layout_height="300dp"
+            android:layout_gravity="center_vertical"
+            android:layout_marginBottom="30dp"
+            android:layout_marginRight="5dp"
+            android:layout_marginTop="30dp"
+            android:layout_weight="0"
+
+            android:maxHeight="13dp"
+            android:minHeight="0dp"
+            android:progress="0"
+            android:max="7"
+            android:secondaryProgress="7"
+            android:thumb="@drawable/thumb"
+            android:progressDrawable="@drawable/custom_opacity_bar"
+            android:alpha="0.6" />
+
+    </LinearLayout>
 
 </RelativeLayout>
diff --git a/src/android/res/layout/activity_main.xml b/src/android/res/layout/activity_main.xml
index b3250d9..21ad7af 100644
--- a/src/android/res/layout/activity_main.xml
+++ b/src/android/res/layout/activity_main.xml
@@ -15,7 +15,7 @@
         android:text="@string/hello_world" />
 
     <Button
-        android:id="@+id/button1"
+        android:id="@+id/capture"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/textView1"
diff --git a/src/android/res/values/strings.xml b/src/android/res/values/strings.xml
index 5b19d38..a9449bd 100644
--- a/src/android/res/values/strings.xml
+++ b/src/android/res/values/strings.xml
@@ -9,5 +9,8 @@
     <string name="capture">Capture</string>
     <string name="todo">TODO</string>
     <string name="sss">sss</string>
-
+    <string name="Miniature">Miniature</string>
+    <string name="PHOTO">Photo</string>
+    <string name="BoutonMiniature">Ceci est le bouton permettant d\'afficher une miniature</string>
+	<string name="descImage">Il s\'agit de l\'image de fond de l\'appareil photo</string>
 </resources>
diff --git a/src/android/res/values/styles.xml b/src/android/res/values/styles.xml
index 6ce89c7..908012e 100644
--- a/src/android/res/values/styles.xml
+++ b/src/android/res/values/styles.xml
@@ -14,7 +14,6 @@
 
     <!-- Application theme. -->
     <style name="AppTheme" parent="AppBaseTheme">
-        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
-    </style>
+    </style>		
 
 </resources>
diff --git a/src/android/src/org/geneanet/customcamera/CameraView.java b/src/android/src/org/geneanet/customcamera/CameraView.java
index f3a6b30..8732f28 100644
--- a/src/android/src/org/geneanet/customcamera/CameraView.java
+++ b/src/android/src/org/geneanet/customcamera/CameraView.java
@@ -1,45 +1,56 @@
 package org.geneanet.customcamera;
 
+import java.util.List;
+import java.lang.Math;
+
 import org.geneanet.customcamera.utils.CameraPreview;
 import org.geneanet.customcamera.utils.CustomCamera;
 import org.geneanet.testcustomcamera.R;
 
 import android.app.Activity;
-import android.content.res.Configuration;
-import android.graphics.Matrix;
-import android.graphics.Point;
+import android.content.pm.ActivityInfo;
+
 import android.hardware.Camera;
 import android.os.Bundle;
 import android.view.Display;
-import android.view.Menu;
-import android.view.MenuItem;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup.LayoutParams;
 import android.view.Window;
 import android.view.WindowManager;
+import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
-import android.widget.ImageView.ScaleType;
+import android.widget.SeekBar;
+import android.widget.SeekBar.OnSeekBarChangeListener;
 
 public class CameraView extends Activity {
 	
-	private Camera mCamera;
+    private float mDist;
+    private Camera mCamera;
+    private int modeMiniature = 0;
     private CameraPreview mPreview;
+    public static final int MEDIA_TYPE_IMAGE = 1;
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 		
-		//Remove title bar
+		/* Remove title bar */
 	    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
-	    //Remove notification bar
+	    
+	    /* Remove notification bar */
 	    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
 		
 		setContentView(R.layout.activity_camera_view);
 		
-		// Récupère les infos sur le device.
+		/* Get informations about the device */
 		Display display = getWindowManager().getDefaultDisplay();
 		
-		// récupère l'objet gérant la camera puis l'oriente en fonction de l'écran.
+		/* Get object which use the camera and orient it in function of the screen */
 		mCamera = CustomCamera.getCameraInstance();
+		
 		switch (display.getRotation()) {
 			case CustomCamera.LANDSCAPE:
 				mCamera.setDisplayOrientation(0);
@@ -55,9 +66,180 @@ public class CameraView extends Activity {
 				break;
 		}
 		
-		// On assigne le rendu à la vue.
+		/* Assign the render to the view */
 		mPreview = new CameraPreview(this, mCamera);
         FrameLayout preview = (FrameLayout) findViewById(R.id.camera_preview);
         preview.addView(mPreview);
+        
+        /* The opacity bar */
+        SeekBar switchOpacity = (SeekBar) findViewById(R.id.switchOpacity);
+        
+        switchOpacity.setOnSeekBarChangeListener(
+        		new OnSeekBarChangeListener() {
+        			int progress = 0;
+        		@Override
+        		public void onProgressChanged(SeekBar seekBar, int progresValue, boolean fromUser) {
+        			progress = progresValue;
+        			ImageView imageView = (ImageView) findViewById(R.id.normal);
+        			switch(progress){
+        			case 0 : 
+        				imageView.setAlpha((float)0.2);
+        				break;
+        			case 1 :
+        				imageView.setAlpha((float)0.3);
+        				break;
+        			case 2 :
+        				imageView.setAlpha((float)0.4);
+        				break;
+        			case 3 :
+        				imageView.setAlpha((float)0.5);
+        				break;
+        			case 4 :
+        				imageView.setAlpha((float)0.6);
+        				break;
+        			case 5 :
+        				imageView.setAlpha((float)0.7);
+        				break;
+        			case 6 :
+        				imageView.setAlpha((float)0.8);
+        				break;
+        			case 7 :
+        				imageView.setAlpha((float)0.9);
+        				break;
+        			}
+        		}
+
+        		@Override
+        		public void onStartTrackingTouch(SeekBar seekBar) {}
+
+        		@Override
+        		public void onStopTrackingTouch(SeekBar seekBar) {}
+        });
+ 	}
+	
+	/*******************************************************/
+	/** BLOCK THE ROTATION IN FUNCTION OF THE POSTAL CARD **/
+	/*******************************************************/
+	@Override
+	public void onWindowFocusChanged(boolean hasFocus){
+		ImageView imageView = (ImageView) findViewById(R.id.normal);
+	    int widthImage=imageView.getWidth();
+	    int heightImage=imageView.getHeight();
+	    
+	    System.out.println("Largeur : "+widthImage);
+	    System.out.println("Hauteur : "+heightImage);
+		
+	    if(heightImage < widthImage || imageView.getRotation() != 0){
+	    	this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+	    	imageView.setRotation(0);
+	    }
+	    else{
+	    	this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+	    }
 	}
-}
+	
+	/******************/
+	/** FOR THE ZOOM **/
+	/******************/
+	@Override
+	public boolean onTouchEvent(MotionEvent event) {
+	    Camera.Parameters params = mCamera.getParameters();
+	    int action = event.getAction();
+ 
+	    if (event.getPointerCount() > 1) {
+	        // If we touch with more than one finger
+	        if (action == MotionEvent.ACTION_POINTER_UP) {
+	           mDist = getFingerSpacing(event);
+	        } else if (action == MotionEvent.ACTION_MOVE && params.isZoomSupported()) {
+	            mCamera.cancelAutoFocus();
+				handleZoom(event, params, mDist);
+	        }
+	    } else {
+	        // If we touch with one finger -> auto-focus
+	        if (action == MotionEvent.ACTION_UP) {
+	            handleFocus(event, params);
+	        }
+	    }
+	    return true;
+	}
+
+	/******************/
+	/** GERE LE ZOOM **/
+	/******************/
+	private void handleZoom(MotionEvent event, Camera.Parameters params, float mDist) {
+	    int maxZoom = params.getMaxZoom();
+	    int zoom = params.getZoom();
+	    float newDist = getFingerSpacing(event);
+	    
+	    if (newDist > mDist) {
+	        //zoom in
+	        if (zoom < maxZoom/2)
+	            zoom+=2;
+	    } else if (newDist < mDist) {
+	    	//zoom out
+		    if (zoom > 0)
+		        zoom-=2;
+	    	}
+		mDist = newDist;
+		params.setZoom(zoom);
+		mCamera.setParameters(params);
+	}
+
+	/*******************/
+	/** GERE LE FOCUS **/
+	/*******************/
+	public void handleFocus(MotionEvent event, Camera.Parameters params) {
+	    List<String> supportedFocusModes = params.getSupportedFocusModes();
+	    if (supportedFocusModes != null && supportedFocusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
+	        mCamera.autoFocus(new Camera.AutoFocusCallback() {
+	            @Override
+	            public void onAutoFocus(boolean b, Camera camera) {}
+	        });
+	    }
+	}
+
+	/*******************************************************/
+	/** DETERMINE L'ESPACE ENTRE LES DEUX PREMIERS DOIGTS **/
+	/*******************************************************/
+	private float getFingerSpacing(MotionEvent event) {
+	    float x = event.getX(0) - event.getX(1);
+	    float y = event.getY(0) - event.getY(1);
+	    return (float) Math.sqrt(x * x + y * y);
+	}
+	
+	/***************************/
+	/** AFFICHER LA MINIATURE **/
+	/***************************/
+	public void showMiniature(View view){
+		ImageView imageView = (ImageView) findViewById(R.id.normal);
+		Button miniature = (Button) findViewById(R.id.Miniature);
+		
+		if(modeMiniature == 0){
+			FrameLayout.LayoutParams paramsMiniature = new FrameLayout.LayoutParams(imageView.getWidth()/4, imageView.getHeight()/4);
+			
+			paramsMiniature.gravity=Gravity.BOTTOM;
+			imageView.setAlpha(imageView.getAlpha());
+			
+			modeMiniature = 1;
+			
+			imageView.setLayoutParams(paramsMiniature);
+			
+			miniature.setEnabled(false);
+			miniature.setVisibility(View.INVISIBLE);
+			imageView.setOnClickListener(new View.OnClickListener() {
+                public void onClick(View v) {
+                	ImageView imageView = (ImageView) findViewById(R.id.normal);
+                	Button miniature = (Button) findViewById(R.id.Miniature);
+                	LayoutParams paramsReagrandissement = (LayoutParams) imageView.getLayoutParams();
+        			paramsReagrandissement.width = -1;
+        			paramsReagrandissement.height = -1;
+        			imageView.setAlpha(imageView.getAlpha());
+        			modeMiniature = 0;
+        			imageView.setLayoutParams(paramsReagrandissement);
+        			miniature.setVisibility(View.VISIBLE);
+        			miniature.setEnabled(true);
+                }
+			});
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/android/src/org/geneanet/customcamera/MainActivity.java b/src/android/src/org/geneanet/customcamera/MainActivity.java
index 0502d9f..f47f11e 100644
--- a/src/android/src/org/geneanet/customcamera/MainActivity.java
+++ b/src/android/src/org/geneanet/customcamera/MainActivity.java
@@ -6,14 +6,10 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
-import android.hardware.Camera;
 import android.os.Bundle;
-import android.provider.MediaStore;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
-import android.widget.Button;
-
 
 public class MainActivity extends Activity {
 
@@ -29,7 +25,6 @@ public class MainActivity extends Activity {
     
     public void startCamera(View view) {
     	if(this.checkCameraHardware(this)){
-    		System.out.println("test");
     		Intent intent = new Intent(this, CameraView.class);
             startActivity(intent);
             finish();
diff --git a/src/android/src/org/geneanet/customcamera/utils/VerticalSeekBar.java b/src/android/src/org/geneanet/customcamera/utils/VerticalSeekBar.java
new file mode 100644
index 0000000..ff97199
--- /dev/null
+++ b/src/android/src/org/geneanet/customcamera/utils/VerticalSeekBar.java
@@ -0,0 +1,63 @@
+package org.geneanet.customcamera.utils;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.SeekBar;
+
+public class VerticalSeekBar extends SeekBar {
+
+   public VerticalSeekBar(Context context) {
+       super(context);
+   }
+
+   public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {
+       super(context, attrs, defStyle);
+   }
+
+   public VerticalSeekBar(Context context, AttributeSet attrs) {
+       super(context, attrs);
+   }
+
+   protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+       super.onSizeChanged(h, w, oldh, oldw);
+   }
+
+   @Override
+   protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+       super.onMeasure(heightMeasureSpec, widthMeasureSpec);
+       setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
+   }
+
+
+   protected void onDraw(Canvas c) {
+       c.rotate(-90);
+       c.translate(-getHeight(), 0);
+       super.onDraw(c);
+   }
+
+   @Override
+   public boolean onTouchEvent(MotionEvent event) {
+       if (!isEnabled()) {
+           return false;
+       }
+
+       switch (event.getAction()) {
+
+           case MotionEvent.ACTION_DOWN:
+
+           case MotionEvent.ACTION_MOVE:
+
+           case MotionEvent.ACTION_UP:
+               setProgress(getMax() - (int) (getMax() * event.getY() / getHeight()));
+               onSizeChanged(getWidth(), getHeight(), 0, 0);
+               break;
+
+           case MotionEvent.ACTION_CANCEL:
+               break;
+       }
+       
+       return true;
+   }
+}
\ No newline at end of file