private void CalculateLBP(object parameter)
{
LBPHistogrammThreadParameter input = parameter as LBPHistogrammThreadParameter;
if (parameter == null)
{
throw new ArgumentException("Неправильный формат параметра потока.");
}
for (int i = input.From; i < input.To; ++i)
{
var feature = GetLBPFeature(input.List[i]);
input.Result.Add(feature);
}
input.ResetEvent.Set();
}
private List <LBPFeature> GetSubfeatures()
{
var fragments = GetFragments();
int threadCount = Math.Min(fragments.Count, RecognitionParameters.FragmentProcessThreadCount);
threadCount = (isMultithread) ? (threadCount) : (1);
int threadPart = fragments.Count / threadCount;
var resetEvents = new ManualResetEvent[threadCount];
var threadParameters = new LBPHistogrammThreadParameter[threadCount];
for (int i = 0; i < threadCount; ++i)
{
resetEvents[i] = new ManualResetEvent(false);
threadParameters[i] = new LBPHistogrammThreadParameter(
threadPart * i,
((i + 1) < threadCount) ? (threadPart * (i + 1)) : (fragments.Count),
fragments, resetEvents[i]);
if (threadCount > 1)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(CalculateLBP), threadParameters[i]);
}
else
{
CalculateLBP(threadParameters[i]);
}
}
WaitHandle.WaitAll(resetEvents);
var list = new List <LBPFeature>();
for (int i = 0; i < threadCount; ++i)
{
list.AddRange(threadParameters[i].Result);
}
return(list);
}
private List<LBPFeature> GetSubfeatures()
{
var fragments = GetFragments();
int threadCount = Math.Min(fragments.Count, RecognitionParameters.FragmentProcessThreadCount);
threadCount = (isMultithread) ? (threadCount) : (1);
int threadPart = fragments.Count / threadCount;
var resetEvents = new ManualResetEvent[threadCount];
var threadParameters = new LBPHistogrammThreadParameter[threadCount];
for (int i = 0; i < threadCount; ++i)
{
resetEvents[i] = new ManualResetEvent(false);
threadParameters[i] = new LBPHistogrammThreadParameter(
threadPart * i,
((i + 1) < threadCount) ? (threadPart * (i + 1)) : (fragments.Count),
fragments, resetEvents[i]);
if (threadCount > 1)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(CalculateLBP), threadParameters[i]);
}
else
{
CalculateLBP(threadParameters[i]);
}
}
WaitHandle.WaitAll(resetEvents);
var list = new List<LBPFeature>();
for (int i = 0; i < threadCount; ++i)
{
list.AddRange(threadParameters[i].Result);
}
return list;
}
