public void Test(int seed, int width)
{
_Output.WriteLine("Vector<float>.Count: {0}", Vector <float> .Count);
_Output.WriteLine("Vector.IsHardwareAccelerated: {0}", Vector.IsHardwareAccelerated);
var r = new Random(seed);
var src = new ByteImage(1280, 720);
r.NextBytes(src.Array);
var ker = new FloatImage(width, 10);
var sum = 0f;
for (var i = 0; i < ker.Array.Length; i++)
{
sum += ker.Array[i] = (float)r.NextDouble();
}
ker.MultiplyInplace(1 / sum);
var wrapper = new ByteImageWrapper(src);
var sw = new Stopwatch();
sw.Start();
var expected = ByteImageOperations <ByteImageWrapper> .ConvolveSingle(wrapper, ker, ker.Width, ker.Height);
sw.Stop();
_Output.WriteLine("interface: " + sw.ElapsedMilliseconds + "ms");
sw.Reset();
sw.Start();
var actual = new ByteImageOperations <ByteImageWrapper>().Convolve(wrapper, ker);
sw.Stop();
_Output.WriteLine("Vector<float>: " + sw.ElapsedMilliseconds + "ms");
for (var i = 0; i < expected.Array.Length; i++)
{
Assert.Equal(
0,
(expected.Array[i] - actual.Array[i]) / expected.Array[i], 4);
}
}
public void MultiplyInplaceTest(int width)
{
_Output.WriteLine("Vector<float>.Count: {0}", Vector <float> .Count);
_Output.WriteLine("Vector.IsHardwareAccelerated: {0}", Vector.IsHardwareAccelerated);
var src = new FloatImage(width, 1);
for (var i = 0; i < src.Array.Length; i++)
{
src.Array[i] = i + 1;
}
src.MultiplyInplace(2);
for (var i = 0; i < src.Array.Length; i++)
{
Assert.Equal(src.Array[i], 2 * (i + 1), 7);
}
}
