问更改图像的位图调色板

EN

var width = image.Frames[0].PixelWidth;
var height = image.Frames[0].PixelHeight; 
var dpiX = image.Frames[0].DpiX;
var dpiY = image.Frames[0].DpiY;

var listOfColors = new List<System.Windows.Media.Color>();
for (int i = 0; i < 256; i++)
{
      listOfColors.Add(System.Windows.Media.Color.FromRgb((byte)i, (byte)i, (byte)i));
}
var pallet = new BitmapPalette(listOfColors);

newImage = new WriteableBitmap(width, height, dpiX, dpiY, PixelFormats.Indexed8, pallet );