public override int ProcessImages(List <ImageData> images, out double[][] inputs, out int[] outputs)
{
outputs = new int[images.Count];
inputs = new double[images.Count][];
var imageData = new List <Bitmap>();
foreach (var image in images)
{
using (var stream = new MemoryStream(image.Image))
{
imageData.Add(new Bitmap(stream));
}
}
var converter = new CornerFeaturesDetector(_detector);
_bagOfVisualWords = new BagOfVisualWords <CornerFeaturePoint>(converter, NumberOfWords);
_bagOfVisualWords.Compute(imageData.ToArray());
for (var i = 0; i < images.Count; i++)
{
inputs[i] = _bagOfVisualWords.GetFeatureVector(imageData[i]);
outputs[i] = Utilities.GetIntFromClass(images[i].Type);
}
return(images.Count);
}
public void BagOfVisualWordsConstructorTest3()
{
Accord.Math.Random.Generator.Seed = 0;
var images = GetImages();
MoravecCornersDetector moravec = new MoravecCornersDetector();
CornerFeaturesDetector detector = new CornerFeaturesDetector(moravec);
var bow = new BagOfVisualWords <CornerFeaturePoint>(detector, numberOfWords: 10);
bow.ParallelOptions.MaxDegreeOfParallelism = 1;
#pragma warning disable 612, 618
var points = bow.Compute(images, 1e-3);
#pragma warning restore 612, 618
double[] vector = bow.GetFeatureVector(images[0]);
Assert.AreEqual(10, bow.NumberOfWords);
Assert.AreEqual(6, points.Length);
Assert.AreEqual(10, vector.Length);
Assert.AreEqual(2800, points[0].Count);
Assert.AreEqual(4532, points[1].Count);
Assert.AreEqual(2282, points[2].Count);
Assert.AreEqual(1173, points[3].Count);
Assert.AreEqual(4860, points[4].Count);
Assert.AreEqual(5730, points[5].Count);
Assert.AreEqual(596, points[0][0].Descriptor[0]);
Assert.AreEqual(51, points[0][0].Descriptor[1]);
Assert.AreEqual(points[0][0].Descriptor[0], points[0][0].X);
Assert.AreEqual(points[0][0].Descriptor[1], points[0][0].Y);
Assert.AreEqual(461, points[3][7].Descriptor[0]);
Assert.AreEqual(8, points[2][3].Descriptor[1]);
Assert.AreEqual(991, points[2][52].Descriptor[0]);
Assert.AreEqual(82, points[1][11].Descriptor[1]);
Assert.AreEqual(430, points[0][42].Descriptor[0]);
Assert.AreEqual(135, points[4][125].Descriptor[1]);
}
public void BagOfVisualWordsConstructorTest3()
{
MoravecCornersDetector moravec = new MoravecCornersDetector();
CornerFeaturesDetector detector = new CornerFeaturesDetector(moravec);
var bow = new BagOfVisualWords <CornerFeaturePoint>(detector, numberOfWords: 10);
var points = bow.Compute(images, 1e-3);
double[] vector = bow.GetFeatureVector(images[0]);
Assert.AreEqual(10, bow.NumberOfWords);
Assert.AreEqual(6, points.Length);
Assert.AreEqual(10, vector.Length);
Assert.AreEqual(2800, points[0].Count);
Assert.AreEqual(4532, points[1].Count);
Assert.AreEqual(2282, points[2].Count);
Assert.AreEqual(1173, points[3].Count);
Assert.AreEqual(4860, points[4].Count);
Assert.AreEqual(5730, points[5].Count);
Assert.AreEqual(596, points[0][0].Descriptor[0]);
Assert.AreEqual(51, points[0][0].Descriptor[1]);
Assert.AreEqual(points[0][0].Descriptor[0], points[0][0].X);
Assert.AreEqual(points[0][0].Descriptor[1], points[0][0].Y);
Assert.AreEqual(461, points[3][7].Descriptor[0]);
Assert.AreEqual(8, points[2][3].Descriptor[1]);
Assert.AreEqual(991, points[2][52].Descriptor[0]);
Assert.AreEqual(82, points[1][11].Descriptor[1]);
Assert.AreEqual(430, points[0][42].Descriptor[0]);
Assert.AreEqual(135, points[4][125].Descriptor[1]);
}
public void BagOfVisualWordsConstructorTest3()
{
MoravecCornersDetector moravec = new MoravecCornersDetector();
CornerFeaturesDetector detector = new CornerFeaturesDetector(moravec);
var bow = new BagOfVisualWords<CornerFeaturePoint>(detector, numberOfWords: 10);
var points = bow.Compute(images, 1e-3);
double[] vector = bow.GetFeatureVector(images[0]);
Assert.AreEqual(10, bow.NumberOfWords);
Assert.AreEqual(6, points.Length);
Assert.AreEqual(10, vector.Length);
Assert.AreEqual(2800, points[0].Count);
Assert.AreEqual(4532, points[1].Count);
Assert.AreEqual(2282, points[2].Count);
Assert.AreEqual(1173, points[3].Count);
Assert.AreEqual(4860, points[4].Count);
Assert.AreEqual(5730, points[5].Count);
Assert.AreEqual(596, points[0][0].Descriptor[0]);
Assert.AreEqual(51, points[0][0].Descriptor[1]);
Assert.AreEqual(points[0][0].Descriptor[0], points[0][0].X);
Assert.AreEqual(points[0][0].Descriptor[1], points[0][0].Y);
Assert.AreEqual(461, points[3][7].Descriptor[0]);
Assert.AreEqual(8, points[2][3].Descriptor[1]);
Assert.AreEqual(991, points[2][52].Descriptor[0]);
Assert.AreEqual(82, points[1][11].Descriptor[1]);
Assert.AreEqual(430, points[0][42].Descriptor[0]);
Assert.AreEqual(135, points[4][125].Descriptor[1]);
}
