| public Area ( int x1, int y1, int x2, int y2 ) : double | ||
| x1 | int | |
| y1 | int | |
| x2 | int | |
| y2 | int | |
| return | double | |
// .......ooooooooo
// .......ooooooooo
// .......ooooooooo
// .......ooooooooo
public static double Filter2(IntegralImage image, int x, int y, int w, int h, Func <double, double, double> cmp)
{
//Debug.Assert(x >= 0);
//Debug.Assert(y >= 0);
//Debug.Assert(w >= 1);
//Debug.Assert(h >= 1);
int w_2 = w / 2;
double a = image.Area(x + w_2, y, x + w - 1, y + h - 1);
double b = image.Area(x, y, x + w_2 - 1, y + h - 1);
return(cmp(a, b));
}
// ................
// oooooooooooooooo
// ................
public static double Filter4(IntegralImage image, int x, int y, int w, int h, Func <double, double, double> cmp)
{
//Debug.Assert(x >= 0);
//Debug.Assert(y >= 0);
//Debug.Assert(w >= 1);
//Debug.Assert(h >= 1);
int h_3 = h / 3;
double a = image.Area(x, y + h_3, x + w - 1, y + 2 * h_3 - 1);
double b = image.Area(x, y, x + w - 1, y + h_3 - 1) +
image.Area(x, y + 2 * h_3, x + w - 1, y + h - 1);
return(cmp(a, b));
}
public void TestArea()
{
double[] data = {
1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0,
};
Image image = new Image(3, data);
IntegralImage integral_image = new IntegralImage(image);
Assert.AreEqual((1.0), integral_image.Area(0, 0, 0, 0));
Assert.AreEqual((1.0 + 4.0), integral_image.Area(0, 0, 1, 0));
Assert.AreEqual((1.0 + 4.0 + 7.0), integral_image.Area(0, 0, 2, 0));
Assert.AreEqual((1.0) + (2.0), integral_image.Area(0, 0, 0, 1));
Assert.AreEqual((1.0 + 4.0) + (2.0 + 5.0), integral_image.Area(0, 0, 1, 1));
Assert.AreEqual((1.0 + 4.0 + 7.0) + (2.0 + 5.0 + 8.0), integral_image.Area(0, 0, 2, 1));
Assert.AreEqual((2.0), integral_image.Area(0, 1, 0, 1));
Assert.AreEqual((2.0 + 5.0), integral_image.Area(0, 1, 1, 1));
Assert.AreEqual((2.0 + 5.0 + 8.0), integral_image.Area(0, 1, 2, 1));
}
// oooooooooooooooo
// oooooooooooooooo
// oooooooooooooooo
// oooooooooooooooo
public static double Filter0(IntegralImage image, int x, int y, int w, int h, Func<double, double, double> cmp)
{
//Debug.Assert(x >= 0);
//Debug.Assert(y >= 0);
//Debug.Assert(w >= 1);
//Debug.Assert(h >= 1);
double a = image.Area(x, y, x + w - 1, y + h - 1);
double b = 0;
return cmp(a, b);
}
// .......ooooooooo
// .......ooooooooo
// ooooooo.........
// ooooooo.........
public static double Filter3(IntegralImage image, int x, int y, int w, int h, Func<double, double, double> cmp)
{
//Debug.Assert(x >= 0);
//Debug.Assert(y >= 0);
//Debug.Assert(w >= 1);
//Debug.Assert(h >= 1);
int w_2 = w / 2;
int h_2 = h / 2;
double a = image.Area(x, y + h_2, x + w_2 - 1, y + h - 1) +
image.Area(x + w_2, y, x + w - 1, y + h_2 - 1);
double b = image.Area(x, y, x + w_2 - 1, y + h_2 - 1) +
image.Area(x + w_2, y + h_2, x + w - 1, y + h - 1);
return cmp(a, b);
}
// oooooooooooooooo
// oooooooooooooooo
// oooooooooooooooo
// oooooooooooooooo
public static double Filter0(IntegralImage image, int x, int y, int w, int h, Func<double, double, double> cmp)
{
double a = image.Area(x, y, x + w - 1, y + h - 1);
double b = 0;
return cmp(a, b);
}
// .....oooooo.....
// .....oooooo.....
// .....oooooo.....
// .....oooooo.....
public static double Filter5(IntegralImage image, int x, int y, int w, int h, Func<double, double, double> cmp)
{
int w_3 = w / 3;
double a = image.Area(x + w_3, y, x + 2 * w_3 - 1, y + h - 1);
double b = image.Area(x, y, x + w_3 - 1, y + h - 1) +
image.Area(x + 2 * w_3, y, x + w - 1, y + h - 1);
return cmp(a, b);
}
// .......ooooooooo
// .......ooooooooo
// ooooooo.........
// ooooooo.........
public static double Filter3(IntegralImage image, int x, int y, int w, int h, Func<double, double, double> cmp)
{
int w_2 = w / 2;
int h_2 = h / 2;
double a = image.Area(x, y + h_2, x + w_2 - 1, y + h - 1) +
image.Area(x + w_2, y, x + w - 1, y + h_2 - 1);
double b = image.Area(x, y, x + w_2 - 1, y + h_2 - 1) +
image.Area(x + w_2, y + h_2, x + w - 1, y + h - 1);
return cmp(a, b);
}
