public void TestCudaPyr()
{
if (!CudaInvoke.HasCuda)
{
return;
}
Image <Gray, Byte> img = new Image <Gray, byte>(640, 480);
img.SetRandUniform(new MCvScalar(), new MCvScalar(255, 255, 255));
Image <Gray, Byte> down = img.PyrDown();
Image <Gray, Byte> up = down.PyrUp();
CudaImage <Gray, Byte> gImg = new CudaImage <Gray, byte>(img);
CudaImage <Gray, Byte> gDown = new CudaImage <Gray, byte>(img.Size.Width >> 1, img.Size.Height >> 1);
CudaImage <Gray, Byte> gUp = new CudaImage <Gray, byte>(img.Size);
CudaInvoke.PyrDown(gImg, gDown, null);
CudaInvoke.PyrUp(gDown, gUp, null);
CvInvoke.AbsDiff(down, gDown.ToImage(), down);
CvInvoke.AbsDiff(up, gUp.ToImage(), up);
double[] minVals, maxVals;
Point[] minLocs, maxLocs;
down.MinMax(out minVals, out maxVals, out minLocs, out maxLocs);
double maxVal = 0.0;
for (int i = 0; i < maxVals.Length; i++)
{
if (maxVals[i] > maxVal)
{
maxVal = maxVals[i];
}
}
Trace.WriteLine(String.Format("Max diff: {0}", maxVal));
EmguAssert.IsTrue(maxVal <= 1.0);
//Assert.LessOrEqual(maxVal, 1.0);
up.MinMax(out minVals, out maxVals, out minLocs, out maxLocs);
maxVal = 0.0;
for (int i = 0; i < maxVals.Length; i++)
{
if (maxVals[i] > maxVal)
{
maxVal = maxVals[i];
}
}
Trace.WriteLine(String.Format("Max diff: {0}", maxVal));
EmguAssert.IsTrue(maxVal <= 1.0);
//Assert.LessOrEqual(maxVal, 1.0);
}