public static bool RotateByPoints(Image img, ref Bitmap bm, Point p1, Point p2)
{
if ((p1.X == p2.X)) // no need to rotate
{
return(true);
}
Point midPt = new Point();
midPt.X = (int)((p1.X + p2.X) / 2.0);
midPt.Y = (int)((p1.Y + p2.Y) / 2.0);
double RotRadians = Math.Atan2(-(p2.Y - p1.Y), (p2.X - p1.X));
Point newmidPt = new Point();
newmidPt.X = (int)(midPt.X * Math.Cos(RotRadians) -
midPt.Y * Math.Sin(RotRadians));
newmidPt.Y = (int)(midPt.Y * Math.Cos(RotRadians) +
midPt.X * Math.Sin(RotRadians));
//MessageBox.Show(newmidPt.ToString());
double Rot = RotRadians * 180 / 3.141516;
return(MyImageProc.RotateFill2(img, ref bm, Rot, midPt, newmidPt));
}
private void convolveKernel_Click(object sender, EventArgs e)
{
try
{
double[][] kernel = new double[3][];
for (int i = 0; i < 3; i++)
{
kernel[i] = new double[3];
}
/*kernel[0][0] = 1 / 9.0;
* kernel[0][1] = 1 / 9.0;
* kernel[0][2] = 1 / 9.0;
* kernel[1][0] = 1 / 9.0;
* kernel[1][1] = 1 / 9.0;
* kernel[1][2] = 1 / 9.0;
* kernel[2][0] = 1 / 9.0;
* kernel[2][1] = 1 / 9.0;
* kernel[2][2] = 1 / 9.0;*/
//kernel[0][0] = 0;
//kernel[0][1] = -1;
//kernel[0][2] = 0;
//kernel[1][0] = -1;
//kernel[1][1] = 5;
//kernel[1][2] = -1;
//kernel[2][0] = 0;
//kernel[2][1] = -1;
//kernel[2][2] = 0;
kernel[0][0] = float.Parse(r1col1.Text);
kernel[0][1] = float.Parse(r1col2.Text);
kernel[0][2] = float.Parse(r1col3.Text);
kernel[1][0] = float.Parse(r2col1.Text);
kernel[1][1] = float.Parse(r2col2.Text);
kernel[1][2] = float.Parse(r2col3.Text);
kernel[2][0] = float.Parse(r3col1.Text);
kernel[2][1] = float.Parse(r3col2.Text);
kernel[2][2] = float.Parse(r3col3.Text);
//kernel[0][0] = -1;
//kernel[0][1] = -1;
//kernel[0][2] = -1;
//kernel[1][0] = 0;
//kernel[1][1] = 0;
//kernel[1][2] = 0;
//kernel[2][0] = 1;
//kernel[2][1] = 1;
//kernel[2][2] = 1;
Bitmap bmpNew = (Bitmap)bmpOrig.Clone();
MyImageProc.Convolve(bmpOrig, kernel);
orgPicture.Image = bmpNew;
processImg.Image = bmpOrig;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}