private void decolorizeGeneratorWorker_DoWork(object sender, DoWorkEventArgs e)
{
int width = (e.Argument as DecolorizeGenTaskData).width;
int height = (e.Argument as DecolorizeGenTaskData).height;
int[] pixels = (e.Argument as DecolorizeGenTaskData).pixels;
int[] grayscale_pixels = pixels.Clone() as int[];
for (int i = 0; i < grayscale_pixels.Length; i++)
{
byte[] color = BitConverter.GetBytes(grayscale_pixels[i]);
byte gray = (byte)((color[0] * 11 + color[1] * 16 + color[2] * 5) / 32);
grayscale_pixels[i] = (color[3] << 24) | (gray << 16) | (gray << 8) | gray;
}
DecolorizeGenTaskData task_data = new DecolorizeGenTaskData();
task_data.width = width;
task_data.height = height;
task_data.pixels = grayscale_pixels;
e.Result = task_data;
}
private void LoadImage(WriteableBitmap bitmap)
{
if (bitmap.PixelWidth != 0 && bitmap.PixelHeight != 0)
{
this.loadedBitmap = bitmap;
DecolorizeGenTaskData task_data = new DecolorizeGenTaskData();
task_data.width = bitmap.PixelWidth;
task_data.height = bitmap.PixelHeight;
task_data.pixels = bitmap.Pixels;
this.decolorizeGeneratorWorker.RunWorkerAsync(task_data);
this.GenerationProgressIndicator.IsVisible = true;
}
}
