public Bitmap ToBitmap(Bitmap.Config config)
{
System.Drawing.Size size = Size;
if (config == Bitmap.Config.Argb8888)
{
Bitmap result = Bitmap.CreateBitmap(size.Width, size.Height, Bitmap.Config.Argb8888);
using (BitmapArgb8888Image bi = new BitmapArgb8888Image(result))
{
bi.ConvertFrom(this);
//CvInvoke.cvSet(bi, new MCvScalar(0, 0, 255, 255), IntPtr.Zero);
}
return(result);
}
else if (config == Bitmap.Config.Rgb565)
{
Bitmap result = Bitmap.CreateBitmap(size.Width, size.Height, Bitmap.Config.Rgb565);
using (BitmapRgb565Image bi = new BitmapRgb565Image(result))
bi.ConvertFrom(this);
return(result);
}
else
{
throw new NotImplementedException("Only Bitmap config of Argb888 or Rgb565 is supported.");
}
}
/// <summary>
/// Convert Image object to Bitmap
/// </summary>
/// <param name="config">The Bitmap Config</param>
/// <returns>The Bitmap</returns>
public static Android.Graphics.Bitmap ToBitmap <TColor, TDepth>(this Image <TColor, TDepth> image, Android.Graphics.Bitmap.Config config)
where TColor : struct, IColor
where TDepth : new()
{
System.Drawing.Size size = image.Size;
if (config == Android.Graphics.Bitmap.Config.Argb8888)
{
Android.Graphics.Bitmap result = Android.Graphics.Bitmap.CreateBitmap(size.Width, size.Height, Android.Graphics.Bitmap.Config.Argb8888);
using (BitmapArgb8888Image bi = new BitmapArgb8888Image(result))
{
bi.ConvertFrom(image);
//CvInvoke.cvSet(bi, new MCvScalar(0, 0, 255, 255), IntPtr.Zero);
}
return(result);
}
else if (config == Android.Graphics.Bitmap.Config.Rgb565)
{
Android.Graphics.Bitmap result = Android.Graphics.Bitmap.CreateBitmap(size.Width, size.Height, Android.Graphics.Bitmap.Config.Rgb565);
using (BitmapRgb565Image bi = new BitmapRgb565Image(result))
bi.ConvertFrom(image);
return(result);
}
else
{
throw new NotImplementedException("Only Bitmap config of Argb888 or Rgb565 is supported.");
}
}
public Bitmap ToBitmap(Bitmap.Config config)
{
System.Drawing.Size size = Size;
if (config == Bitmap.Config.Argb8888)
{
Bitmap result = Bitmap.CreateBitmap(size.Width, size.Height, Bitmap.Config.Argb8888);
using (BitmapArgb8888Image bi = new BitmapArgb8888Image(result))
using (Image <Rgba, Byte> tmp = ToImage <Rgba, Byte>())
{
tmp.Copy(bi, null);
}
return(result);
}
else if (config == Bitmap.Config.Rgb565)
{
Bitmap result = Bitmap.CreateBitmap(size.Width, size.Height, Bitmap.Config.Rgb565);
using (BitmapRgb565Image bi = new BitmapRgb565Image(result))
using (Image <Bgr, Byte> tmp = ToImage <Bgr, Byte>())
bi.ConvertFrom(tmp);
return(result);
}
else
{
throw new NotImplementedException("Only Bitmap config of Argb888 or Rgb565 is supported.");
}
}
/// <summary>
/// Convert the Mat to Bitmap
/// </summary>
/// <param name="mat">The Mat to convert to Bitmap</param>
/// <param name="bitmap">The bitmap, must be of the same size and has bitmap config type of either Argb888 or Rgb565</param>
/// <returns>The Bitmap</returns>
public static void ToBitmap(this Mat mat, Android.Graphics.Bitmap bitmap)
{
System.Drawing.Size size = mat.Size;
if (!(size.Width == bitmap.Width && size.Height == bitmap.Height))
{
throw new Exception("Bitmap size doesn't match the Mat size");
}
Android.Graphics.Bitmap.Config config = bitmap.GetConfig();
if (config == Android.Graphics.Bitmap.Config.Argb8888)
{
int channels = mat.NumberOfChannels;
using (BitmapArgb8888Image bi = new BitmapArgb8888Image(bitmap))
{
if (channels == 1)
{
CvInvoke.CvtColor(mat, bi.Mat, ColorConversion.Gray2Rgba);
}
else if (channels == 3)
{
CvInvoke.CvtColor(mat, bi, ColorConversion.Bgr2Rgba);
}
else if (channels == 4)
{
CvInvoke.CvtColor(mat, bi, ColorConversion.Bgra2Rgba);
}
else
{
using (Image <Rgba, Byte> tmp = mat.ToImage <Rgba, Byte>())
{
tmp.Copy(bi, null);
}
}
}
}
else if (config == Android.Graphics.Bitmap.Config.Rgb565)
{
using (BitmapRgb565Image bi = new BitmapRgb565Image(bitmap))
using (Image <Bgr, Byte> tmp = mat.ToImage <Bgr, Byte>())
bi.ConvertFrom(tmp);
}
else
{
throw new NotImplementedException("Only Bitmap config of Argb888 or Rgb565 is supported.");
}
}
/// <summary>
/// Convert the Mat to Bitmap
/// </summary>
/// <param name="config">The bitmap config type. If null, Argb8888 will be used</param>
/// <returns>The Bitmap</returns>
public Bitmap ToBitmap(Bitmap.Config config = null)
{
System.Drawing.Size size = Size;
if (config == null || config == Bitmap.Config.Argb8888)
{
Bitmap result = Bitmap.CreateBitmap(size.Width, size.Height, Bitmap.Config.Argb8888);
int channels = NumberOfChannels;
using (BitmapArgb8888Image bi = new BitmapArgb8888Image(result))
{
if (channels == 1)
{
CvInvoke.CvtColor(this, bi.Mat, ColorConversion.Gray2Rgba);
}
else if (channels == 3)
{
CvInvoke.CvtColor(this, bi, ColorConversion.Bgr2Rgba);
}
else if (channels == 4)
{
CvInvoke.CvtColor(this, bi, ColorConversion.Bgra2Rgba);
}
else
{
using (Image <Rgba, Byte> tmp = ToImage <Rgba, Byte>())
{
tmp.Copy(bi, null);
}
}
}
return(result);
}
else if (config == Bitmap.Config.Rgb565)
{
Bitmap result = Bitmap.CreateBitmap(size.Width, size.Height, Bitmap.Config.Rgb565);
using (BitmapRgb565Image bi = new BitmapRgb565Image(result))
using (Image <Bgr, Byte> tmp = ToImage <Bgr, Byte>())
bi.ConvertFrom(tmp);
return(result);
}
else
{
throw new NotImplementedException("Only Bitmap config of Argb888 or Rgb565 is supported.");
}
}
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
lock (this)
{
Image <Bgr, byte> image = _bgrBuffers.GetBuffer(0);
if (image != null && !_imageSize.IsEmpty && canvas != null)
{
Stopwatch w = Stopwatch.StartNew();
if ((_bmpImage != null) && (!_imageSize.Equals(_bmpImage.Size)))
{
_bmpImage.Dispose();
_bmpImage = null;
_bmp.Dispose();
_bmp = null;
}
if (_bmpImage == null)
{
_bmp = Android.Graphics.Bitmap.CreateBitmap(_imageSize.Width, _imageSize.Height, Android.Graphics.Bitmap.Config.Rgb565);
_bmpImage = new BitmapRgb565Image(_bmp);
}
_bmpImage.ConvertFrom(image);
canvas.DrawBitmap(_bmp, 0, 0, _paint);
w.Stop();
_watch.Stop();
#if DEBUG
canvas.DrawText(String.Format("{0:F2} FPS; {1}x{2}; Render Time: {3} ms",
1.0 / _watch.ElapsedMilliseconds * 1000,
_imageSize.Width,
_imageSize.Height,
w.ElapsedMilliseconds), 20, 20, _paint);
#endif
_watch.Reset();
_watch.Start();
}
}
}