本文整理汇总了C++中UMat::elemSize方法的典型用法代码示例。如果您正苦于以下问题：C++ UMat::elemSize方法的具体用法？C++ UMat::elemSize怎么用？C++ UMat::elemSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类UMat的用法示例。
在下文中一共展示了UMat::elemSize方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ocl_integral
static bool ocl_integral( InputArray _src, OutputArray _sum, OutputArray _sqsum, int sdepth, int sqdepth )
{
bool doubleSupport = ocl::Device::getDefault().doubleFPConfig() > 0;
if ( _src.type() != CV_8UC1 || _src.step() % vlen != 0 || _src.offset() % vlen != 0 ||
(!doubleSupport && (sdepth == CV_64F || sqdepth == CV_64F)) )
return false;
char cvt[40];
String opts = format("-D sdepth=%d -D sqdepth=%d -D TYPE=%s -D TYPE4=%s4 -D convert_TYPE4=%s%s",
sdepth, sqdepth, ocl::typeToStr(sqdepth), ocl::typeToStr(sqdepth),
ocl::convertTypeStr(sdepth, sqdepth, 4, cvt),
doubleSupport ? " -D DOUBLE_SUPPORT" : "");
ocl::Kernel k1("integral_cols", ocl::imgproc::integral_sqrsum_oclsrc, opts);
if (k1.empty())
return false;
Size size = _src.size(), dsize = Size(size.width + 1, size.height + 1),
t_size = Size(((size.height + vlen - 1) / vlen) * vlen, size.width);
UMat src = _src.getUMat(), t_sum(t_size, sdepth), t_sqsum(t_size, sqdepth);
t_sum = t_sum(Range::all(), Range(0, size.height));
t_sqsum = t_sqsum(Range::all(), Range(0, size.height));
_sum.create(dsize, sdepth);
_sqsum.create(dsize, sqdepth);
UMat sum = _sum.getUMat(), sqsum = _sqsum.getUMat();
int offset = src.offset / vlen;
int pre_invalid = src.offset % vlen;
int vcols = (pre_invalid + src.cols + vlen - 1) / vlen;
int sum_offset = sum.offset / sum.elemSize();
int sqsum_offset = sqsum.offset / sqsum.elemSize();
CV_Assert(sqsum.offset % sqsum.elemSize() == 0);
k1.args(ocl::KernelArg::PtrReadOnly(src), ocl::KernelArg::PtrWriteOnly(t_sum),
ocl::KernelArg::PtrWriteOnly(t_sqsum), offset, pre_invalid, src.rows,
src.cols, (int)src.step, (int)t_sum.step, (int)t_sqsum.step);
size_t gt = ((vcols + 1) / 2) * 256, lt = 256;
if (!k1.run(1, >, <, false))
return false;
ocl::Kernel k2("integral_rows", ocl::imgproc::integral_sqrsum_oclsrc, opts);
if (k2.empty())
return false;
k2.args(ocl::KernelArg::PtrReadOnly(t_sum), ocl::KernelArg::PtrReadOnly(t_sqsum),
ocl::KernelArg::PtrWriteOnly(sum), ocl::KernelArg::PtrWriteOnly(sqsum),
t_sum.rows, t_sum.cols, (int)t_sum.step, (int)t_sqsum.step,
(int)sum.step, (int)sqsum.step, sum_offset, sqsum_offset);
size_t gt2 = t_sum.cols * 32, lt2 = 256;
return k2.run(1, >2, <2, false);
}