Reconstruct image from a pixel array

[Sepho]

Hi everybody!

I'm working in a proyect that work with images. I loaded image from file and decode it in a int array of pixels. After manipulate that pixels I want to reconstruct the image, to save it in hard disk. I've done that:

Image newImg;

newImg = createImage(new MemoryImageSource(imgCols, imgRows, pixelsNewImg, 0, imgCols));

File output = new File("/home/sepho/myfile.jpg");

try {
  [b]if (ImageIO.write((RenderedImage) newImg, "jpg", output))[/b] {
       System.out.println("Image stored...");
  }
     } catch (IOException ex) {
          Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
     }

Where imgCols and imgRows are the columns and rows of the original image, and pixelsNewImg is the int array of pixels.

If I try to run, I get the next error:

Exception in thread "main" java.lang.ClassCastException: sun.awt.image.ToolkitImage cannot be cast to java.awt.image.RenderedImage

This is in the bold line above. Any idea?

Thanks for all, and sorry for my english! :P