Question

I am trying to save a kinect depth sensor image to a png file. I tried to take this with my RGB camera and it didn’t have any problems. Is there something that I missed out on?
P.S. I am using Kinect ToolKit’s functions for both rgb and depth image display.

WriteableBitmap depthBitmap;
DepthStreamManager dsm;
dsm = new DepthStreamManager();
kinect.DepthStream.Enable(DepthImageFormat.Resolution640x480Fps30);
kinect.DepthFrameReady += kinect_DepthFrameReady;
depthBitmap = new WriteableBitmap(kinect.DepthStream.FrameWidth,this.kinect.DepthStream.FrameHeight, 96.0, 96.0, PixelFormats.Gray16, null);
private string TakeImage(int x)
    {
        if (x == 0)
        {
            BitmapEncoder encoder = new PngBitmapEncoder();
            encoder.Frames.Add(BitmapFrame.Create(this.depthBitmap));
            string myPhotos = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
            string path = System.IO.Path.Combine(myPhotos, "Image 1.png");
            try
            {
                using (FileStream fs = new FileStream(path, FileMode.Create))
                {
                    encoder.Save(fs);
                }


            }
            catch (IOException details)
            {
                Console.Write(details.ToString());

            }
            if (path == null)
                return "Image was not taken.";
            else
                return path;
        }}

Answer 1

Solution to my own problem:

Using Kinect’s ToolKit, they actually supplied a writable bitmap function that allows me to grab the ColorStreamManager or DepthStreamManager’s WritableBitmap out. My error previously was that since I wasn’t using Kinect’s innate display methods, the writeablebitmap will definitely be empty. This is my fixed codes.

WriteableBitmap wmp;
            wmp = cis.Bitmap;
            BitmapEncoder encoder = new PngBitmapEncoder();
            encoder.Frames.Add(BitmapFrame.Create(wmp));
            string path = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop),"Image 1.png");
            try
            {
                using (FileStream fs = new FileStream(path, FileMode.Create))
                {
                    encoder.Save(fs);
                }
            }
            catch (IOException ioe)
            {
                Console.WriteLine(ioe.ToString());
            }
            return path;