Changeset 10698 for extensions/jiwigo-ws-api/src/main/java/fr/mael/jiwigo/transverse/util/ImagesUtil.java

Timestamp:

Apr 30, 2011, 1:37:01 PM (13 years ago)

Author:

mlg

Message:

Modifications to try to have a better image quality on resizing

File:

• extensions/jiwigo-ws-api/src/main/java/fr/mael/jiwigo/transverse/util/ImagesUtil.java (modified) (3 diffs)

extensions/jiwigo-ws-api/src/main/java/fr/mael/jiwigo/transverse/util/ImagesUtil.java

@@ -51 +51 @@
             .getLog(ImagesUtil.class);
 
+    private static final GraphicsConfiguration CONFIGURATION = GraphicsEnvironment.getLocalGraphicsEnvironment()
+            .getDefaultScreenDevice().getDefaultConfiguration();
+
+    public static void main(String[] args) throws IOException {
+        scale("/home/mael/Bureau/test.png", "test4.jpg", 1999, 1999);
+    }
+
     /**
      * rotates an image
@@ -101 +108 @@
      */
     public static boolean scale(String filePath, String tempName, int width, int height) throws IOException {
-        File file = new File(filePath);
         InputStream imageStream = new BufferedInputStream(new FileInputStream(filePath));
         Image image = (Image) ImageIO.read(imageStream);
@@ -117 +123 @@
             width = (int) (height * imageRatio);
         }
-        BufferedImage thumbImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        //      BufferedImage thumbImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        BufferedImage thumbImage = createCompatibleImage(ImageIO.read(new File(filePath)), width, height);
         Graphics2D graphics2D = thumbImage.createGraphics();
         graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
         graphics2D.drawImage(image, 0, 0, width, height, null);
-
+        graphics2D.dispose();
         //      ImageIO.write(thumbImage, "jpg", new FileOutputStream(System.getProperty("java.io.tmpdir") + "/" + tempName));
         saveImage(System.getProperty("java.io.tmpdir") + "/" + tempName, thumbImage);
         return true;
 
+    }
+
+    public static BufferedImage createCompatibleImage(BufferedImage image, int width, int height) {
+        return CONFIGURATION.createCompatibleImage(width, height, image.getTransparency());
     }