Se configura la actividad incicial con unos botones dummy.

app/src/main/res/layout/activity_main.xml

-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent">
+    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
-    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
+        android:layout_height="wrap_content" android:paddingLeft="@dimen/activity_horizontal_margin"
         android:paddingRight="@dimen/activity_horizontal_margin"
         android:paddingTop="@dimen/activity_vertical_margin"
-    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
+        android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
+        android:id="@+id/MainActivity">
 
-    <TextView android:text="@string/hello_world" android:layout_width="wrap_content"
+        <Button
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-        android:id="@+id/textView" />
+            android:text="Cargar primera imagen"
+            android:id="@+id/button"
+            android:layout_marginTop="47dp"
+            android:layout_alignParentTop="true"
+            android:layout_alignParentLeft="true"
+            android:layout_alignParentStart="true"
+            android:layout_alignRight="@+id/button2"
+            android:layout_alignEnd="@+id/button2" />
 
         <Button
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-        android:text="Ir a manejo de camara"
+            android:text="Cargar segunda imagen"
+            android:id="@+id/button2"
+            android:layout_centerVertical="true"
+            android:layout_alignParentLeft="true"
+            android:layout_alignParentStart="true"
+            android:layout_below="@+id/imageView"/>
+
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/imageView"
+            android:layout_below="@+id/button"
+            android:layout_alignParentLeft="true"
+            android:layout_alignParentStart="true"
+            android:layout_alignRight="@+id/button"
+            android:layout_alignEnd="@+id/button"
+            android:maxHeight="150dp" />
+
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/imageView2"
+            android:layout_below="@+id/button2"
+            android:layout_alignParentLeft="true"
+            android:layout_alignParentStart="true"
+            android:layout_alignRight="@+id/button2"
+            android:layout_alignEnd="@+id/button2"
+            android:maxHeight="150dp" />
+
+        <Button
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Procesar"
             android:id="@+id/button3"
-        android:layout_below="@+id/textView"
-        android:layout_centerHorizontal="true"
-        android:layout_marginTop="86dp" />
+            android:layout_below="@+id/imageView2"
+            android:layout_alignParentLeft="true" />
+
 
-</RelativeLayout>
+    </RelativeLayout>
+</ScrollView>
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