public void ApplyTreshold(int level)
{
var oldR = LargeBitmap.GetPixel(0, 0).R;
var oldG = LargeBitmap.GetPixel(0, 0).G;
var oldB = LargeBitmap.GetPixel(0, 0).B;
int intensity = (oldR + oldG + oldB) / 3;
int newR;
int newG;
int newB;
if (intensity >= 255 * level / 100)
{
newR = 255;
newG = 255;
newB = 255;
}
else
{
newR = 0;
newG = 0;
newB = 0;
}
ImageHandler.ApplyThreshold(LargeBitmap, level);
Assert.AreEqual(newR, LargeBitmap.GetPixel(0, 0).R);
Assert.AreEqual(newG, LargeBitmap.GetPixel(0, 0).G);
Assert.AreEqual(newB, LargeBitmap.GetPixel(0, 0).B);
}
public void ThrowArgumentOutOfRangeExc_WhenApplyThresholdWithWrongLevel(int level)
{
Assert.Throws <ArgumentOutOfRangeException>(() => ImageHandler.ApplyThreshold(LargeBitmap, level));
}