public ImageTemplate()
{
this.frame = new VideoFrame();
info = new Dictionary <string, object>();
}
public ImageTemplate(VideoFrame frame)
: this()
{
this.frame = frame;
}
public static void ProcessTemplate(ImageTemplate template, bool extractKeypoints = true)
{
if (pyramid == null)
{
pyramid = new DeviceMemory <byte> [imgScales.Length];
for (int i = 0; i < imgScales.Length; i++)
{
double scaleFactor = 1.0 / Math.Pow(2, imgScales[i]);
int height = (int)Math.Ceiling((template.Image.Height * scaleFactor) / 4.0) * 4;
int width = (int)Math.Ceiling((template.Image.Width * scaleFactor) / 4.0) * 4;
pyramid[i] = worker.Malloc <byte>(width * height);
}
}
template.Pyramid = new Image <Gray, byte> [imgScales.Length];
List <float> texture = new List <float>();
//List<float> variances = new List<float>();
float[][] textureScales = new float[imgScales.Length][];
//for (int i = 0; i < imgScales.Length; i++)
Parallel.For(0, imgScales.Length, (int i) =>
{
double scaleFactor = 1.0 / Math.Pow(2, imgScales[i]);
int height = (int)Math.Ceiling((template.Image.Height * scaleFactor) / 4.0) * 4;
int width = (int)Math.Ceiling((template.Image.Width * scaleFactor) / 4.0) * 4;
//int height = (int)(template.Image.Height * scaleFactor);
//int width = (int)(template.Image.Width * scaleFactor);
Image <Gray, byte> temp = new Image <Gray, byte>(width, height);
CvInvoke.Resize(template.Image, temp, temp.Size);
template.Pyramid[i] = temp;
pyramid[i].Scatter(temp.Bytes);
VideoFrame frame = new VideoFrame()
{
Image = temp, ImageGPU = pyramid[i]
};
//float[] textureCurrentScale = AdaptiveLBP.GetInstance(temp.Size).GetHistogram(new VideoFrame() { Image = temp, ImageGPU = pyramid[i] });
float[] textureCurrentScale = LBP.GetInstance(temp.Size).GetHistogram(frame);
//float[] textureCurrentScale = Utils.ToFloat(Utils.Flatten(OldLBP.GetImageHistogramEfficient(temp)));
//texture.AddRange(textureCurrentScale);
textureScales[i] = textureCurrentScale;
//variances.AddRange(LBP.GetInstance(temp.Size).GetVariances(frame));
});
foreach (float[] textureScale in textureScales)
{
texture.AddRange(textureScale);
}
template.Texture = texture.ToArray();
//template["variances"] = variances;
if (extractKeypoints)
{
GpuMat gpuImg = new GpuMat(template.Image);
GpuMat keypoints = surf.DetectKeyPointsRaw(gpuImg);
GpuMat descriptors = surf.ComputeDescriptorsRaw(gpuImg, null, keypoints);
template.Keypoints = keypoints;
VectorOfKeyPoint keypointVector = new VectorOfKeyPoint();
surf.DownloadKeypoints(keypoints, keypointVector);
template.KeypointVector = keypointVector;
template.Descriptors = descriptors;
}
}
