|
public static StandardDeviation ( this image, |
||
| image | this | |
| rectangle | ||
| mean | double | |
| return | double | |
public static double StandardDeviation(this Bitmap image, Rectangle rectangle, double mean)
{
BitmapData data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height),
ImageLockMode.ReadOnly, image.PixelFormat);
double dev = StandardDeviation(data, rectangle, mean);
image.UnlockBits(data);
return dev;
}
| Tools::StandardDeviation ( this image, double mean ) : double |
public void StandardDeviationTest()
{
double[] values = { 5, 2, 7, 5, 3, 5, 1, 1, 2 };
Bitmap image; new ArrayToImage(3, 3, 0, 255).Convert(values, out image);
double mean = Measures.Mean(values);
double expected = Measures.StandardDeviation(values);
double actual = Tools.StandardDeviation(image, mean);
Assert.AreEqual(expected, actual);
}
