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Added OpenVX based processing to remap

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This commit is contained in:
Vitaly Tuzov
2016-12-01 17:24:48 +03:00
parent 53f72f18f5
commit f8b4d28745
2 changed files with 292 additions and 0 deletions
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modules/imgproc/src/imgwarp.cpp
+85
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@@ -51,6 +51,8 @@
#include "opencl_kernels_imgproc.hpp"
#include "hal_replacement.hpp"
#include "opencv2/core/openvx/ovx_defs.hpp"
using namespace cv;
namespace cv
@@ -4750,6 +4752,78 @@ static bool ocl_logPolar(InputArray _src, OutputArray _dst,
}
#endif
#ifdef HAVE_OPENVX
static bool openvx_remap(Mat src, Mat dst, Mat map1, Mat map2, int interpolation, const Scalar& borderValue)
{
vx_interpolation_type_e inter_type;
switch (interpolation)
{
case INTER_LINEAR:
#if VX_VERSION > VX_VERSION_1_0
inter_type = VX_INTERPOLATION_BILINEAR;
#else
inter_type = VX_INTERPOLATION_TYPE_BILINEAR;
#endif
break;
case INTER_NEAREST:
#if VX_VERSION > VX_VERSION_1_0
inter_type = VX_INTERPOLATION_NEAREST_NEIGHBOR;
#else
inter_type = VX_INTERPOLATION_TYPE_NEAREST_NEIGHBOR;
#endif
break;
case INTER_AREA://AREA interpolation mode is unsupported
default:
return false;
}
try
{
ivx::Context ctx = ivx::Context::create();
Mat a;
if (dst.data != src.data)
a = src;
else
src.copyTo(a);
ivx::Image
ia = ivx::Image::createFromHandle(ctx, VX_DF_IMAGE_U8,
ivx::Image::createAddressing(a.cols, a.rows, 1, (vx_int32)(a.step)), a.data),
ib = ivx::Image::createFromHandle(ctx, VX_DF_IMAGE_U8,
ivx::Image::createAddressing(dst.cols, dst.rows, 1, (vx_int32)(dst.step)), dst.data);
//ATTENTION: VX_CONTEXT_IMMEDIATE_BORDER attribute change could lead to strange issues in multi-threaded environments
//since OpenVX standart says nothing about thread-safety for now
ivx::border_t prevBorder = ctx.immediateBorder();
ctx.setImmediateBorder(VX_BORDER_CONSTANT, (vx_uint8)(borderValue[0]));
ivx::Remap map = ivx::Remap::create(ctx, src.cols, src.rows, dst.cols, dst.rows);
if (map1.empty()) map.setMappings(map2);
else if (map2.empty()) map.setMappings(map1);
else map.setMappings(map1, map2);
ivx::IVX_CHECK_STATUS(vxuRemap(ctx, ia, map, inter_type, ib));
#ifdef VX_VERSION_1_1
ib.swapHandle();
ia.swapHandle();
#endif
ctx.setImmediateBorder(prevBorder);
}
catch (ivx::RuntimeError & e)
{
CV_Error(CV_StsInternal, e.what());
return false;
}
catch (ivx::WrapperError & e)
{
CV_Error(CV_StsInternal, e.what());
return false;
}
return true;
}
#endif
#if defined HAVE_IPP && IPP_DISABLE_BLOCK
typedef IppStatus (CV_STDCALL * ippiRemap)(const void * pSrc, IppiSize srcSize, int srcStep, IppiRect srcRoi,
@@ -4852,6 +4926,17 @@ void cv::remap( InputArray _src, OutputArray _dst,
Mat src = _src.getMat(), map1 = _map1.getMat(), map2 = _map2.getMat();
_dst.create( map1.size(), src.type() );
Mat dst = _dst.getMat();
CV_OVX_RUN(
src.type() == CV_8UC1 && dst.type() == CV_8UC1 &&
(borderType& ~BORDER_ISOLATED) == BORDER_CONSTANT &&
((map1.type() == CV_32FC2 && map2.empty() && map1.size == dst.size) ||
(map1.type() == CV_32FC1 && map2.type() == CV_32FC1 && map1.size == dst.size && map2.size == dst.size) ||
(map1.empty() && map2.type() == CV_32FC2 && map2.size == dst.size)) &&
((borderType & BORDER_ISOLATED) != 0 || !src.isSubmatrix()),
openvx_remap(src, dst, map1, map2, interpolation, borderValue));
CV_Assert( dst.cols < SHRT_MAX && dst.rows < SHRT_MAX && src.cols < SHRT_MAX && src.rows < SHRT_MAX );
if( dst.data == src.data )