public void CreateAndDispose()
{
using (var model = PHash.Create())
{
GC.KeepAlive(model);
}
}
public void CompareSameImage()
{
using (var model = PHash.Create())
using (var img1 = Image("lenna.png", ImreadModes.GrayScale))
{
double hash = model.Compare(img1, img1);
Assert.Equal(0, hash, 6);
}
}
public void CompareDifferentImage()
{
using (var model = PHash.Create())
using (var img1 = Image("lenna.png", ImreadModes.GrayScale))
using (var img2 = Image("building.jpg", ImreadModes.GrayScale))
{
var size = new Size(256, 256);
using (var scaledImg1 = img1.Resize(size))
using (var scaledImg2 = img2.Resize(size))
{
double hash = model.Compare(scaledImg1, scaledImg2);
Assert.Equal(264411, hash, 6);
}
}
}
public void Compute()
{
using (var model = PHash.Create())
using (var img = Image("lenna.png"))
using (var hash = new MatOfByte())
{
model.Compute(img, hash);
Assert.Equal(1, hash.Rows);
Assert.Equal(8, hash.Cols);
Assert.Equal(MatType.CV_8UC1, hash.Type());
var hashArray = hash.ToArray();
Assert.Equal(152, hashArray[0]);
Assert.Equal(99, hashArray[1]);
Assert.Equal(42, hashArray[2]);
Assert.Equal(180, hashArray[3]);
Assert.Equal(206, hashArray[4]);
Assert.Equal(197, hashArray[5]);
Assert.Equal(97, hashArray[6]);
Assert.Equal(25, hashArray[7]);
}
}