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Merge pull request #7760 from terfendail:ovx_histogram

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This commit is contained in:
Alexander Alekhin 2016-12-14 03:20:30 +00:00
commit 19c8cc8f13
2 changed files with 241 additions and 5 deletions
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176
3rdparty/openvx/include/ivx.hpp vendored
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@ -343,6 +343,15 @@ template <> struct RefTypeTraits <vx_lut>
static vx_status release(vxType& ref) { return vxReleaseLUT(&ref); }
};
class Distribution;
template <> struct RefTypeTraits <vx_distribution>
{
typedef vx_distribution vxType;
typedef Distribution wrapperType;
static const vx_enum vxTypeEnum = VX_TYPE_DISTRIBUTION;
static vx_status release(vxType& ref) { return vxReleaseDistribution(&ref); }
};
#ifdef IVX_USE_CXX98
/// Casting to vx_reference with compile-time check
@ -2738,6 +2747,173 @@ public:
#endif //IVX_USE_OPENCV
};
/*
* Distribution
*/
class Distribution : public RefWrapper<vx_distribution>
{
public:
IVX_REF_STD_CTORS_AND_ASSIGNMENT(Distribution);
static Distribution create(vx_context context, vx_size numBins, vx_int32 offset, vx_uint32 range)
{
return Distribution(vxCreateDistribution(context, numBins, offset, range));
}
#ifndef VX_VERSION_1_1
static const vx_enum
VX_MEMORY_TYPE_HOST = VX_IMPORT_TYPE_HOST,
VX_DISTRIBUTION_DIMENSIONS = VX_DISTRIBUTION_ATTRIBUTE_DIMENSIONS,
VX_DISTRIBUTION_OFFSET = VX_DISTRIBUTION_ATTRIBUTE_OFFSET,
VX_DISTRIBUTION_RANGE = VX_DISTRIBUTION_ATTRIBUTE_RANGE,
VX_DISTRIBUTION_BINS = VX_DISTRIBUTION_ATTRIBUTE_BINS,
VX_DISTRIBUTION_WINDOW = VX_DISTRIBUTION_ATTRIBUTE_WINDOW,
VX_DISTRIBUTION_SIZE = VX_DISTRIBUTION_ATTRIBUTE_SIZE;
#endif
template<typename T>
void query(vx_enum att, T& value) const
{
IVX_CHECK_STATUS(vxQueryDistribution(ref, att, &value, sizeof(value)));
}
vx_size dimensions() const
{
vx_size v;
query(VX_DISTRIBUTION_DIMENSIONS, v);
return v;
}
vx_int32 offset() const
{
vx_int32 v;
query(VX_DISTRIBUTION_OFFSET, v);
return v;
}
vx_uint32 range() const
{
vx_uint32 v;
query(VX_DISTRIBUTION_RANGE, v);
return v;
}
vx_size bins() const
{
vx_size v;
query(VX_DISTRIBUTION_BINS, v);
return v;
}
vx_uint32 window() const
{
vx_uint32 v;
query(VX_DISTRIBUTION_WINDOW, v);
return v;
}
vx_size size() const
{
vx_size v;
query(VX_DISTRIBUTION_SIZE, v);
return v;
}
vx_size dataType() const
{
return VX_TYPE_UINT32;
}
void copyTo(void* data)
{
if (!data) throw WrapperError(std::string(__func__) + "(): output pointer is 0");
#ifdef VX_VERSION_1_1
IVX_CHECK_STATUS(vxCopyDistribution(ref, data, VX_READ_ONLY, VX_MEMORY_TYPE_HOST));
#else
IVX_CHECK_STATUS(vxAccessDistribution(ref, &data, VX_READ_ONLY));
IVX_CHECK_STATUS(vxCommitDistribution(ref, data));
#endif
}
void copyFrom(const void* data)
{
if (!data) throw WrapperError(std::string(__func__) + "(): input pointer is 0");
#ifdef VX_VERSION_1_1
IVX_CHECK_STATUS(vxCopyDistribution(ref, const_cast<void*>(data), VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST));
#else
IVX_CHECK_STATUS(vxAccessDistribution(ref, const_cast<void**>(&data), VX_WRITE_ONLY));
IVX_CHECK_STATUS(vxCommitDistribution(ref, data));
#endif
}
void copy(void* data, vx_enum usage, vx_enum memType = VX_MEMORY_TYPE_HOST)
{
#ifdef VX_VERSION_1_1
IVX_CHECK_STATUS(vxCopyDistribution(ref, data, usage, memType));
#else
IVX_CHECK_STATUS(vxAccessDistribution(ref, const_cast<void**>(&data), usage));
IVX_CHECK_STATUS(vxCommitDistribution(ref, data));
(void)memType;
#endif
}
template<typename T> void copyTo(std::vector<T>& data)
{
if (TypeToEnum<T>::value != dataType()) throw WrapperError(std::string(__func__) + "(): destination type is wrong");
if (data.size() != bins())
{
if (data.size() == 0)
data.resize(bins());
else
throw WrapperError(std::string(__func__) + "(): destination size is wrong");
}
copyTo(&data[0]);
}
template<typename T> void copyFrom(const std::vector<T>& data)
{
if (TypeToEnum<T>::value != dataType()) throw WrapperError(std::string(__func__) + "(): source type is wrong");
if (data.size() != bins()) throw WrapperError(std::string(__func__) + "(): source size is wrong");
copyFrom(&data[0]);
}
#ifdef IVX_USE_OPENCV
void copyTo(cv::Mat& m)
{
if (m.type() != enumToCVType(dataType())) throw WrapperError(std::string(__func__) + "(): destination type is wrong");
if (!(
((vx_size)(m.rows) == bins() && m.cols == 1) ||
((vx_size)(m.cols) == bins() && m.rows == 1)
) && !m.empty())
throw WrapperError(std::string(__func__) + "(): destination size is wrong");
if (m.isContinuous() && (vx_size)(m.total()) == bins())
{
copyTo(m.ptr());
}
else
{
cv::Mat tmp(1, (int)bins(), enumToCVType(dataType()));
copyTo(tmp.ptr());
if (m.empty())
m = tmp;
else
tmp.copyTo(m);
}
}
void copyFrom(const cv::Mat& m)
{
if (!(
((vx_size)(m.rows) == bins() && m.cols == 1) ||
((vx_size)(m.cols) == bins() && m.rows == 1)
)) throw WrapperError(std::string(__func__) + "(): source size is wrong");
if (m.type() != enumToCVType(dataType())) throw WrapperError(std::string(__func__) + "(): source type is wrong");
copyFrom(m.isContinuous() ? m.ptr() : m.clone().ptr());
}
#endif //IVX_USE_OPENCV
};
/// Standard nodes
namespace nodes {

70
modules/imgproc/src/histogram.cpp
View File

@ -42,11 +42,7 @@
#include "precomp.hpp"
#include "opencl_kernels_imgproc.hpp"
#ifdef HAVE_OPENVX
#define IVX_USE_OPENCV
#define IVX_HIDE_INFO_WARNINGS
#include "ivx.hpp"
#endif
#include "opencv2/core/openvx/ovx_defs.hpp"
namespace cv
{
@ -1268,6 +1264,63 @@ private:
}
#ifdef HAVE_OPENVX
namespace cv
{
static bool openvx_calchist(const Mat& image, OutputArray _hist, const int histSize,
const float* _range)
{
vx_int32 offset = (vx_int32)(_range[0]);
vx_uint32 range = (vx_uint32)(_range[1] - _range[0]);
if (float(offset) != _range[0] || float(range) != (_range[1] - _range[0]))
return false;
size_t total_size = image.total();
int rows = image.dims > 1 ? image.size[0] : 1, cols = rows ? (int)(total_size / rows) : 0;
if (image.dims > 2 && !(image.isContinuous() && cols > 0 && (size_t)rows*cols == total_size))
return false;
try
{
ivx::Context ctx = ivx::Context::create();
#if VX_VERSION <= VX_VERSION_1_0
if (ctx.vendorID() == VX_ID_KHRONOS && (range % histSize))
return false;
#endif
ivx::Image
img = ivx::Image::createFromHandle(ctx, VX_DF_IMAGE_U8,
ivx::Image::createAddressing(cols, rows, 1, (vx_int32)(image.step[0])), image.data);
ivx::Distribution vxHist = ivx::Distribution::create(ctx, histSize, offset, range);
ivx::IVX_CHECK_STATUS(vxuHistogram(ctx, img, vxHist));
_hist.create(1, &histSize, CV_32F);
Mat hist = _hist.getMat(), ihist = hist;
ihist.flags = (ihist.flags & ~CV_MAT_TYPE_MASK) | CV_32S;
vxHist.copyTo(ihist);
ihist.convertTo(hist, CV_32F);
#ifdef VX_VERSION_1_1
img.swapHandle();
#endif
}
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)
namespace cv
{
@ -1321,6 +1374,13 @@ void cv::calcHist( const Mat* images, int nimages, const int* channels,
{
CV_INSTRUMENT_REGION()
CV_OVX_RUN(
images && histSize &&
nimages == 1 && images[0].type() == CV_8UC1 && dims == 1 && _mask.getMat().empty() &&
(!channels || channels[0] == 0) && !accumulate && uniform &&
ranges && ranges[0],
openvx_calchist(images[0], _hist, histSize[0], ranges[0]));
CV_IPP_RUN(nimages == 1 && images[0].type() == CV_8UC1 && dims == 1 && channels &&
channels[0] == 0 && _mask.getMat().empty() && images[0].dims <= 2 &&
!accumulate && uniform,