BitmapSource

来自：https://stackoverflow.com/questions/8311805/bitmapsource-copypixels-byte-bitmapsource-how-to-do-this-simple

        private byte[] BitmapSourceToArray(BitmapSource bitmapSource)
        {
            // Stride = (width) x (bytes per pixel)
            int stride = (int)bitmapSource.PixelWidth * ((bitmapSource.Format.BitsPerPixel + 7) / 8);
            byte[] pixels = new byte[(int)bitmapSource.PixelHeight * stride];

            bitmapSource.CopyPixels(pixels, stride, 0);

            return pixels;
        }

        private BitmapSource BitmapSourceFromArray(byte[] pixels, int width, int height)
        {
            WriteableBitmap bitmap = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgra32, null);

            bitmap.WritePixels(new Int32Rect(0, 0, width, height), pixels, width * ((bitmap.Format.BitsPerPixel + 7) / 8), 0);

            return bitmap;
        }