public override bool Apply(FloatBitmap image)
{
int npixelsTop = CountPixelsHelper.NumBlackPixelsInHalf(image, Half.Top);
int npixelsBottom = CountPixelsHelper.NumBlackPixelsInHalf(image, Half.Bottom);
int tolerance = (int)((image.Width * image.Height) * epsilon);
return(npixelsTop > npixelsBottom + tolerance);
}
public override bool Apply(FloatBitmap image)
{
int npixelsLeft = CountPixelsHelper.NumBlackPixelsInHalf(image, Half.Left);
int npixelsRight = CountPixelsHelper.NumBlackPixelsInHalf(image, Half.Right);
int tolerance = (int)((image.Width * image.Height) * epsilon);
return(npixelsLeft > npixelsRight + tolerance);
}
public void CountPixelsHelperHalfsTest()
{
FloatBitmap bitmap = new FloatBitmap(5, 5);
bitmap[1, 0] = FloatBitmap.Black;
bitmap[1, 1] = FloatBitmap.Black;
bitmap[3, 2] = FloatBitmap.Black;
int ct1 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Top);
int cb1 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Bottom);
int cl1 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Left);
int cr1 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Right);
Assert.AreEqual(2, ct1, "Arriba 1");
Assert.AreEqual(1, cb1, "Abajo 1");
Assert.AreEqual(2, cl1, "Izquierda 1");
Assert.AreEqual(1, cr1, "Derecha 1");
bitmap = bitmap.Rotate90();
int ct2 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Top);
int cb2 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Bottom);
int cl2 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Left);
int cr2 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Right);
Assert.AreEqual(1, ct2, "Arriba 2");
Assert.AreEqual(2, cb2, "Abajo 2");
Assert.AreEqual(2, cl2, "Izquierda 2 ");
Assert.AreEqual(1, cr2, "Derecha 2");
bitmap = bitmap.Rotate90();
int ct3 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Top);
int cb3 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Bottom);
int cl3 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Left);
int cr3 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Right);
Assert.AreEqual(0, ct3, "Arriba 3");
Assert.AreEqual(3, cb3, "Abajo 3");
Assert.AreEqual(1, cl3, "Izquierda 3");
Assert.AreEqual(2, cr3, "Derecha 3");
bitmap = bitmap.Rotate90();
int ct4 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Top);
int cb4 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Bottom);
int cl4 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Left);
int cr4 = CountPixelsHelper.NumBlackPixelsInHalf(bitmap, Half.Right);
Assert.AreEqual(2, ct4, "Arriba 4");
Assert.AreEqual(1, cb4, "Abajo 4");
Assert.AreEqual(0, cl4, "Izquierda 4");
Assert.AreEqual(3, cr4, "Derecha 4");
}
public override bool Apply(FloatBitmap image)
{
int npixelsNW = CountPixelsHelper.NumBlackPixelsInQuadrant(image, Quadrant.NW);
int npixelsNE = CountPixelsHelper.NumBlackPixelsInQuadrant(image, Quadrant.NE);
int npixelsSW = CountPixelsHelper.NumBlackPixelsInQuadrant(image, Quadrant.SW);
int npixelsSE = CountPixelsHelper.NumBlackPixelsInQuadrant(image, Quadrant.SE);
int tolerance = (int)((image.Width * image.Height) * epsilon);
return((npixelsNW > npixelsNE + tolerance) &&
(npixelsNW > npixelsSW + tolerance) &&
(npixelsNW > npixelsSE + tolerance));
}
public void CountPixelsHelperQuartersTest()
{
FloatBitmap bitmap = new FloatBitmap(5, 5);
bitmap[1, 0] = FloatBitmap.Black;
bitmap[1, 1] = FloatBitmap.Black;
bitmap[3, 2] = FloatBitmap.Black;
int ct1 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NW);
int cb1 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SW);
int cl1 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SE);
int cr1 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NE);
Assert.AreEqual(2, ct1, "NW 1");
Assert.AreEqual(0, cb1, "SW 1");
Assert.AreEqual(1, cl1, "SE 1");
Assert.AreEqual(0, cr1, "NE 1");
bitmap = bitmap.Rotate90();
int ct2 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NW);
int cb2 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SW);
int cl2 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SE);
int cr2 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NE);
Assert.AreEqual(0, ct2, "NW 2");
Assert.AreEqual(2, cb2, "SW 2");
Assert.AreEqual(0, cl2, "SE 2");
Assert.AreEqual(1, cr2, "NE 2");
bitmap = bitmap.Rotate90();
int ct3 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NW);
int cb3 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SW);
int cl3 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SE);
int cr3 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NE);
Assert.AreEqual(0, ct3, "NW 3");
Assert.AreEqual(1, cb3, "SW 3");
Assert.AreEqual(2, cl3, "SE 3");
Assert.AreEqual(0, cr3, "NE 3");
bitmap = bitmap.Rotate90();
int ct4 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NW);
int cb4 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SW);
int cl4 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.SE);
int cr4 =
CountPixelsHelper.NumBlackPixelsInQuadrant(bitmap, Quadrant.NE);
Assert.AreEqual(0, ct4, "NW 4");
Assert.AreEqual(0, cb4, "SW 4");
Assert.AreEqual(1, cl4, "SE 4");
Assert.AreEqual(2, cr4, "NE 4");
}
