New Post: PSDs, PNGs and Transparency

staticvoid ChangeBackground(MagickImage image)
{
  // For now you will have to change the image from CMYK to RGB.// I am working on a fix for this.
  image.AddProfile(ColorProfile.SRGB);
  image.ColorSpace = ColorSpace.sRGB;
  
  // First change the white color to a color that is not in the image.
  MagickColor white = new MagickColor("white");
  MagickColor purple = new MagickColor("purple");
  image.Opaque(white, purple);
  
  // Draw the image on a white background.using (MagickImage background = new MagickImage(white, image.Width, image.Height))
  {
    image.Composite(background, Gravity.Center, CompositeOperator.DstOver);
  }
  
  // Change the purple pixels to transparent
  image.Opaque(purple, MagickColor.Transparent);
}

staticvoid ExtractLayers()
{
  var image = GetImage();
  using (MagickImageCollection collection = new MagickImageCollection(image.Image))
  {
    // Don't use using because the collection will take care of Disposing the images.
    MagickImage bottom = collection[0];
    ChangeBackground(bottom);
    bottom.Write("bottomlayer.png");
    
    MagickImage top = collection[collection.Count - 1];
    ChangeBackground(top);
    top.Write("toplayer.png");
  }
}