generic-library/opencv
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

added gpu::sqrSum function

Browse Source
This commit is contained in:
Alexey Spizhevoy
2010-12-13 14:34:02 +00:00
parent b18a3a5f83
commit c9f9f38777
4 changed files with 132 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
modules/gpu/src/arithm.cpp
View File

@@ -66,6 +66,8 @@ double cv::gpu::norm(const GpuMat&, const GpuMat&, int) { throw_nogpu(); return
void cv::gpu::flip(const GpuMat&, GpuMat&, int) { throw_nogpu(); }
Scalar cv::gpu::sum(const GpuMat&) { throw_nogpu(); return Scalar(); }
Scalar cv::gpu::sum(const GpuMat&, GpuMat&) { throw_nogpu(); return Scalar(); }
Scalar cv::gpu::sqrSum(const GpuMat&) { throw_nogpu(); return Scalar(); }
Scalar cv::gpu::sqrSum(const GpuMat&, GpuMat&) { throw_nogpu(); return Scalar(); }
void cv::gpu::minMax(const GpuMat&, double*, double*, const GpuMat&) { throw_nogpu(); }
void cv::gpu::minMax(const GpuMat&, double*, double*, const GpuMat&, GpuMat&) { throw_nogpu(); }
void cv::gpu::minMaxLoc(const GpuMat&, double*, double*, Point*, Point*, const GpuMat&) { throw_nogpu(); }
@@ -489,6 +491,12 @@ namespace cv { namespace gpu { namespace mathfunc
template <typename T>
void sum_multipass_caller(const DevMem2D src, PtrStep buf, double* sum);
template <typename T>
void sqsum_caller(const DevMem2D src, PtrStep buf, double* sum);
template <typename T>
void sqsum_multipass_caller(const DevMem2D src, PtrStep buf, double* sum);
namespace sum
{
void get_buf_size_required(int cols, int rows, int& bufcols, int& bufrows);
@@ -527,6 +535,38 @@ Scalar cv::gpu::sum(const GpuMat& src, GpuMat& buf)
return result;
}
Scalar cv::gpu::sqrSum(const GpuMat& src)
{
GpuMat buf;
return sqrSum(src, buf);
}
Scalar cv::gpu::sqrSum(const GpuMat& src, GpuMat& buf)
{
using namespace mathfunc;
CV_Assert(src.channels() == 1);
typedef void (*Caller)(const DevMem2D, PtrStep, double*);
static const Caller callers[2][7] =
{ { sqsum_multipass_caller<unsigned char>, sqsum_multipass_caller<char>,
sqsum_multipass_caller<unsigned short>, sqsum_multipass_caller<short>,
sqsum_multipass_caller<int>, sqsum_multipass_caller<float>, 0 },
{ sqsum_caller<unsigned char>, sqsum_caller<char>,
sqsum_caller<unsigned short>, sqsum_caller<short>,
sqsum_caller<int>, sqsum_caller<float>, sqsum_caller<double> } };
Size bufSize;
sum::get_buf_size_required(src.cols, src.rows, bufSize.width, bufSize.height);
buf.create(bufSize, CV_8U);
Caller caller = callers[hasAtomicsSupport(getDevice())][src.type()];
if (!caller) CV_Error(CV_StsBadArg, "sqrSum: unsupported type");
double result;
caller(src, buf, &result);
return result;
}
////////////////////////////////////////////////////////////////////////
// minMax