通过操纵Kinect Color像素创建opsite镜像图片

我正试图从颜色流中创建一个相反的镜像图片，即，当右手向上移动时，我希望kinect将绘制左侧必须向上移动的图片（不像在真实镜子前右手举起）。我想操纵彩色图像来做到这一点：只移动X位置。然而，我得到了一个蓝色屏幕：

    void kinectSensor_ColorFrameReady(object sender, ColorImageFrameReadyEventArgs e)
    {
        try
        {
               using (ColorImageFrame colorImageFrame = e.OpenColorImageFrame())
            {
                if (colorImageFrame != null)
                {
                    byte[] pixelsFromFrame = new byte[colorImageFrame.PixelDataLength];
                     colorImageFrame.CopyPixelDataTo(pixelsFromFrame);
                     Color[] color = new Color[colorImageFrame.Height * colorImageFrame.Width];
                    kinectRGBVideo = new Texture2D(graphics.GraphicsDevice, colorImageFrame.Width, colorImageFrame.Height);
                    // Go through each pixel and set the bytes correctly
                    // Remember, each pixel got a Rad, Green and Blue
                    int index = 0;
                    for (int y = 0; y < colorImageFrame.Height; y++)
                    {
                        for (int x = 0; x < colorImageFrame.Width; x++, index += 4)
                        {
                            color[(y * colorImageFrame.Width + x)] = new Color(pixelsFromFrame[(y+1)*(2560 -index)],
                                pixelsFromFrame[(y + 1) * (2560 - index)],
                                pixelsFromFrame[(y + 1) * (2560 - index)]);
                         }
                    }
                               // Set pixeldata from the ColorImageFrame to a Texture2D
                   kinectRGBVideo.SetData(color);

                }
            }
        }
        catch { 

        }
    }

有人能告诉我发生了什么事吗？谢谢erez

unsafe void reflectImage(byte[] colorData, int width, int height)
{
    fixed (byte* imageBase = colorData)
    {
        // Get the base position as an integer pointer
        int* imagePosition = (int*)imageBase;
        // repeat for each row
        for (int row = 0; row < height; row++)
        {
            // read from the left edge
            int* fromPos = imagePosition + (row * width);
            // write to the right edge
            int* toPos = fromPos + width - 1;
            while (fromPos < toPos)
            {
                *toPos = *fromPos;
                 //copy the pixel
                 fromPos++; // move towards the middle
                 toPos--; // move back from the right edge
            }
        }
    }
}