diff --git a/src/osm/jp/gpx/matchtime/gui/restamp/DialogCorectTime.java b/src/osm/jp/gpx/matchtime/gui/restamp/DialogCorectTime.java
index d66443c..cc4dea3 100644
--- a/src/osm/jp/gpx/matchtime/gui/restamp/DialogCorectTime.java
+++ b/src/osm/jp/gpx/matchtime/gui/restamp/DialogCorectTime.java
@@ -3,8 +3,12 @@
 import java.awt.BorderLayout;
 import java.awt.Dialog;
 import java.awt.GridLayout;
+import java.awt.Image;
 import java.awt.Rectangle;
+import java.awt.event.ActionEvent;
+import java.io.File;
 import javax.swing.BoxLayout;
+import javax.swing.ImageIcon;
 import javax.swing.JButton;
 import javax.swing.JDialog;
 import javax.swing.JLabel;
@@ -25,12 +29,18 @@
     ParameterPanelTime arg_basetime;	// 開始画像の基準時刻:
     ParameterPanelTime basetime;	// 開始画像の基準時刻:
     java.awt.Button closeButton;
+    JButton expandButton;
+    JButton zoomInButton;
+    JButton zoomOutButton;
+    JLabel imageLabel;		// 開始画像の基準時刻画像表示
+    JScrollPane imageSPane;	// スクロールパネル
     
     /**
      * コンストラクタ
      * @param arg3_basetime       開始画像の基準時刻:
      * @param owner
      */
+    @SuppressWarnings("OverridableMethodCallInConstructor")
     public DialogCorectTime(ParameterPanelTime arg3_basetime, Dialog owner) {
         super(owner, AdjustTime.i18n.getString("tab.restamp.300"), false);
         this.arg_basetime = arg3_basetime;
@@ -70,19 +80,19 @@
 
         //---- CENTER.CENTER -----
         // 参考画像
-        JLabel imageLabel = new JLabel();
-        JScrollPane imageSPane = new JScrollPane(imageLabel);
+        imageLabel = new JLabel();
+        imageSPane = new JScrollPane(imageLabel);
         centerPanel.add(imageSPane, BorderLayout.CENTER);
 
         //---- CENTER.SOUTH -----
         // 画像ファイル選択ダイアログを起動するボタン
         JPanel buttonPanel = new JPanel();
         buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.X_AXIS));
-        JButton openButton = new JButton(createImageIcon(java.util.ResourceBundle.getBundle("i18n_ja_JP").getString("IMAGES/FIT16.GIF")));
-        buttonPanel.add(openButton);
-        JButton zoomInButton = new JButton(createImageIcon("images/ZoomIn16.gif"));
+        expandButton = new JButton(createImageIcon(java.util.ResourceBundle.getBundle("i18n_ja_JP").getString("IMAGES/FIT16.GIF")));
+        buttonPanel.add(expandButton);
+        zoomInButton = new JButton(createImageIcon("images/ZoomIn16.gif"));
         buttonPanel.add(zoomInButton);
-        JButton zoomOutButton = new JButton(createImageIcon("images/ZoomOut16.gif"));
+        zoomOutButton = new JButton(createImageIcon("images/ZoomOut16.gif"));
         buttonPanel.add(zoomOutButton);
         centerPanel.add(buttonPanel, BorderLayout.SOUTH);
         
@@ -92,11 +102,17 @@
         closeButton.setBounds(145,65,66,27);
         add(closeButton, BorderLayout.SOUTH);
 
+        // 選択された画像ファイルを表示する
+        imageView_Action();
+        
         //{{REGISTER_LISTENERS
         SymWindow aSymWindow = new SymWindow();
         this.addWindowListener(aSymWindow);
         SymAction lSymAction = new SymAction();
         closeButton.addActionListener(lSymAction);
+        expandButton.addActionListener(lSymAction);
+        zoomInButton.addActionListener(lSymAction);
+        zoomOutButton.addActionListener(lSymAction);
         //}}
     }
     
@@ -119,10 +135,59 @@
             if (object == closeButton) {
                 dialog_WindowClosing();
             }
+            else if (object == expandButton) {
+            	imageView_Action();
+            }
+            else if (object == zoomInButton) {
+            	zoomin_Action();
+            }
+            else if (object == zoomOutButton) {
+            	zoomout_Action();
+            }
         }
     }
+    
+    ImageIcon refImage;
 
     /**
+     * 選択された画像ファイルを表示する
+     * 基準画像ボタンがクリックされた時に、基準時刻フィールドに基準画像の作成日時を設定する。
+     */
+    @SuppressWarnings("UseSpecificCatch")
+    public void imageView_Action() {
+        int size_x = imageSPane.getWidth() - 8;
+        String path = arg_basetime.getImageFile().getImageFile().getAbsolutePath();
+        ImageIcon tmpIcon = new ImageIcon(path);
+        refImage = tmpIcon;
+        if (tmpIcon.getIconWidth() > size_x) {
+            refImage = new ImageIcon(tmpIcon.getImage().getScaledInstance(size_x, -1, Image.SCALE_DEFAULT));
+        }
+        imageLabel.setIcon(refImage);
+        repaint();
+    }
+    
+    public void zoomin_Action() {
+    	if (refImage != null) {
+            int size_x = imageLabel.getWidth();
+            String path = arg_basetime.getImageFile().getImageFile().getAbsolutePath();
+            ImageIcon tmpIcon = new ImageIcon(path);
+            refImage = new ImageIcon(tmpIcon.getImage().getScaledInstance(size_x * 2, -1, Image.SCALE_DEFAULT));
+            imageLabel.setIcon(refImage);
+            repaint();
+    	}
+    }
+
+    public void zoomout_Action() {
+    	if (refImage != null) {
+            int size_x = imageLabel.getWidth();
+            ImageIcon tmpIcon = refImage;
+            refImage = new ImageIcon(tmpIcon.getImage().getScaledInstance(size_x / 2, -1, Image.SCALE_DEFAULT));
+            imageLabel.setIcon(refImage);
+            repaint();
+    	}
+    }
+    
+    /**
      * ダイアログが閉じられるときのアクション
      */
     void dialog_WindowClosing() {