public static uint NumSeparableFilters <T, U>(ObjectDetector <ScanFHogPyramid <T, U> > detector, uint weightIndex = 0)
where T : class
where U : class
{
if (detector == null)
{
throw new ArgumentNullException(nameof(detector));
}
detector.ThrowIfDisposed();
var param = detector.GetFHogPyramidParameter();
var ret = NativeMethods.scan_fhog_pyramid_num_separable_filters(param.PyramidType,
param.PyramidRate,
param.FeatureExtractorType,
detector.NativePtr,
weightIndex,
out var num);
switch (ret)
{
case NativeMethods.ErrorType.FHogNotSupportExtractor:
case NativeMethods.ErrorType.PyramidNotSupportRate:
case NativeMethods.ErrorType.PyramidNotSupportType:
throw new NotSupportedException();
}
return(num);
}
public static ObjectDetector <ScanFHogPyramid <T, U> > ThresholdFilterSingularValues <T, U>(ObjectDetector <ScanFHogPyramid <T, U> > detector,
double threshold,
uint weightIndex = 0)
where T : class
where U : class
{
if (detector == null)
{
throw new ArgumentNullException(nameof(detector));
}
if (threshold < 0)
{
throw new ArgumentOutOfRangeException();
}
detector.ThrowIfDisposed();
var param = detector.GetFHogPyramidParameter();
var ret = NativeMethods.scan_fhog_pyramid_threshold_filter_singular_values(param.PyramidType,
param.PyramidRate,
param.FeatureExtractorType,
detector.NativePtr,
threshold,
weightIndex,
out var newDetector);
switch (ret)
{
case NativeMethods.ErrorType.FHogNotSupportExtractor:
case NativeMethods.ErrorType.PyramidNotSupportRate:
case NativeMethods.ErrorType.PyramidNotSupportType:
throw new NotSupportedException();
}
return(new ObjectDetector <ScanFHogPyramid <T, U> >(newDetector, param));
}
