private void CallbackOpenCVAnnotate(MouseEventTypes e, int x, int y, MouseEventFlags flags, IntPtr userdata)
{
if (e == MouseEventTypes.LButtonDown)
{
point2Fs.Add(new Point2f(x, y));
if (point2Fs.Count == 4)
{
srcPoints = point2Fs.ToArray();
using var matrix = Cv2.GetPerspectiveTransform(srcPoints, dstPoints);
using var dst = new Mat(new Size(640, 480), MatType.CV_8UC3);
Cv2.WarpPerspective(OriginalImage, dst, matrix, dst.Size());
using var dsts = new Window("dst", dst);
point2Fs.Clear();
}
}
}
/// <summary>
/// 鼠标点击事件
/// </summary>
private void img_MouseDown(MouseEventTypes @event, int x, int y, MouseEventFlags flags, IntPtr userData)
{
if (@event.ToString().Equals("LButtonDown"))
{
int y0 = y - 40;
int x0 = x - 40;
int x1 = x0 + 80;
int y1 = y0 + 80;
//MessageBox.Show(x.ToString());
OpenCvSharp.Point p0 = new OpenCvSharp.Point(x0, y0);
OpenCvSharp.Point p1 = new OpenCvSharp.Point(x1, y1);
getMask(p0, p1, peopleList[nowIndex]);
//Cv2.Rectangle(img, p0, p1,Scalar.Red);
//Cv2.ImShow("chosenImg", img);
Cv2.WaitKey(0);
//Cv2.DestroyWindow("chosenImg");
}
}
private void CallbackOpenCVAnnotate(MouseEventTypes e, int x, int y, MouseEventFlags flags, IntPtr userdata)
{
if (e == MouseEventTypes.LButtonDown)
{
Debug.WriteLine(x + "," + y + " Down");
}
else if (flags.HasFlag(MouseEventFlags.LButton))
{
Debug.WriteLine(x + "," + y + " flags");
}
else if (e == MouseEventTypes.LButtonUp)
{
Debug.WriteLine(x + "," + y + " Up");
}
else if (e == MouseEventTypes.MouseWheel)
{
Debug.WriteLine(x + "," + y + " Wheel");
}
}
static void onMouse(MouseEventTypes @event, int x, int y, MouseEventFlags flags, IntPtr userData)
{
switch (@event)
{
case OpenCvSharp.MouseEventTypes.LButtonDown:
{
originRect = new OpenCvSharp.Point(x, y);
selectInProgress = true;
break;
}
case OpenCvSharp.MouseEventTypes.LButtonUp:
{
selectInProgress = false;
break;
}
case OpenCvSharp.MouseEventTypes.RButtonDown:
{
//Reset selection
selectInProgress = false;
selectionRect = new sl.Rect();
selectionRect.x = 0;
selectionRect.y = 0;
selectionRect.width = 0;
selectionRect.height = 0;
break;
}
}
if (selectInProgress)
{
selectionRect.x = Math.Min(x, originRect.X);
selectionRect.y = Math.Min(y, originRect.Y);
selectionRect.width = Math.Abs(x - originRect.X) + 1;
selectionRect.height = Math.Abs(y - originRect.Y) + 1;
}
}
/// <summary>
/// Gets the mouse-wheel motion delta, when handling mouse-wheel events cv::EVENT_MOUSEWHEEL and cv::EVENT_MOUSEHWHEEL.
///
/// For regular mice with a scroll-wheel, delta will be a multiple of 120. The value 120 corresponds to
/// a one notch rotation of the wheel or the threshold for action to be taken and one such action should
/// occur for each delta.Some high-precision mice with higher-resolution freely-rotating wheels may
/// generate smaller values.
///
/// For cv::EVENT_MOUSEWHEEL positive and negative values mean forward and backward scrolling,
/// respectively.For cv::EVENT_MOUSEHWHEEL, where available, positive and negative values mean right and
/// left scrolling, respectively.
/// </summary>
/// <param name="flags">The mouse callback flags parameter.</param>
/// <returns></returns>
public static int GetMouseWheelDelta(MouseEventTypes flags)
{
NativeMethods.HandleException(
NativeMethods.highgui_getMouseWheelDelta((int)flags, out var ret));
return(ret);
}
