mirror of
https://github.com/opencv/opencv.git
synced 2024-11-29 13:47:32 +08:00
AVX optimized implementation of Harris corner detector migrated to separate file
This commit is contained in:
Vitaly Tuzov
parent
20f603a217
commit
1ed9a58b64
181
modules/imgproc/src/corner.avx.cpp
Normal file
181
modules/imgproc/src/corner.avx.cpp
Normal file
@ -0,0 +1,181 @@
|
||||
/*M///////////////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
|
||||
//
|
||||
// By downloading, copying, installing or using the software you agree to this license.
|
||||
// If you do not agree to this license, do not download, install,
|
||||
// copy or use the software.
|
||||
//
|
||||
//
|
||||
// License Agreement
|
||||
// For Open Source Computer Vision Library
|
||||
//
|
||||
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
|
||||
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
|
||||
// Copyright (C) 2014-2015, Itseez Inc., all rights reserved.
|
||||
// Third party copyrights are property of their respective owners.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without modification,
|
||||
// are permitted provided that the following conditions are met:
|
||||
//
|
||||
// * Redistribution's of source code must retain the above copyright notice,
|
||||
// this list of conditions and the following disclaimer.
|
||||
//
|
||||
// * Redistribution's in binary form must reproduce the above copyright notice,
|
||||
// this list of conditions and the following disclaimer in the documentation
|
||||
// and/or other materials provided with the distribution.
|
||||
//
|
||||
// * The name of the copyright holders may not be used to endorse or promote products
|
||||
// derived from this software without specific prior written permission.
|
||||
//
|
||||
// This software is provided by the copyright holders and contributors "as is" and
|
||||
// any express or implied warranties, including, but not limited to, the implied
|
||||
// warranties of merchantability and fitness for a particular purpose are disclaimed.
|
||||
// In no event shall the Intel Corporation or contributors be liable for any direct,
|
||||
// indirect, incidental, special, exemplary, or consequential damages
|
||||
// (including, but not limited to, procurement of substitute goods or services;
|
||||
// loss of use, data, or profits; or business interruption) however caused
|
||||
// and on any theory of liability, whether in contract, strict liability,
|
||||
// or tort (including negligence or otherwise) arising in any way out of
|
||||
// the use of this software, even if advised of the possibility of such damage.
|
||||
//
|
||||
//M*/
|
||||
|
||||
#include "precomp.hpp"
|
||||
#include "opencv2/core/hal/intrin.hpp"
|
||||
#include "corner.hpp"
|
||||
|
||||
namespace cv
|
||||
{
|
||||
|
||||
// load three 8-packed float vector and deinterleave
|
||||
// probably it's better to write down somewhere else
|
||||
static void load_deinterleave(const float* ptr, __m256& a, __m256& b, __m256& c)
|
||||
{
|
||||
__m256 s0 = _mm256_loadu_ps(ptr); // a0, b0, c0, a1, b1, c1, a2, b2,
|
||||
__m256 s1 = _mm256_loadu_ps(ptr + 8); // c2, a3, b3, c3, a4, b4, c4, a5,
|
||||
__m256 s2 = _mm256_loadu_ps(ptr + 16); // b5, c5, a6, b6, c6, a7, b7, c7,
|
||||
__m256 s3 = _mm256_permute2f128_ps(s1, s2, 0x21); // a4, b4, c4, a5, b5, c5, a6, b6,
|
||||
__m256 s4 = _mm256_permute2f128_ps(s2, s2, 0x33); // c6, a7, b7, c7, c6, a7, b7, c7,
|
||||
|
||||
__m256 v00 = _mm256_unpacklo_ps(s0, s3); // a0, a4, b0, b4, b1, b5, c1, c5,
|
||||
__m256 v01 = _mm256_unpackhi_ps(s0, s3); // c0, c4, a1, a5, a2, a6, b2, b6,
|
||||
__m256 v02 = _mm256_unpacklo_ps(s1, s4); // c2, c6, a3, a7, x, x, x, x,
|
||||
__m256 v03 = _mm256_unpackhi_ps(s1, s4); // b3, b7, c3, c7, x, x, x, x,
|
||||
__m256 v04 = _mm256_permute2f128_ps(v02, v03, 0x20); // c2, c6, a3, a7, b3, b7, c3, c7,
|
||||
__m256 v05 = _mm256_permute2f128_ps(v01, v03, 0x21); // a2, a6, b2, b6, b3, b7, c3, c7,
|
||||
|
||||
__m256 v10 = _mm256_unpacklo_ps(v00, v05); // a0, a2, a4, a6, b1, b3, b5, b7,
|
||||
__m256 v11 = _mm256_unpackhi_ps(v00, v05); // b0, b2, b4, b6, c1, c3, c5, c7,
|
||||
__m256 v12 = _mm256_unpacklo_ps(v01, v04); // c0, c2, c4, c6, x, x, x, x,
|
||||
__m256 v13 = _mm256_unpackhi_ps(v01, v04); // a1, a3, a5, a7, x, x, x, x,
|
||||
__m256 v14 = _mm256_permute2f128_ps(v11, v12, 0x20); // b0, b2, b4, b6, c0, c2, c4, c6,
|
||||
__m256 v15 = _mm256_permute2f128_ps(v10, v11, 0x31); // b1, b3, b5, b7, c1, c3, c5, c7,
|
||||
|
||||
__m256 v20 = _mm256_unpacklo_ps(v14, v15); // b0, b1, b2, b3, c0, c1, c2, c3,
|
||||
__m256 v21 = _mm256_unpackhi_ps(v14, v15); // b4, b5, b6, b7, c4, c5, c6, c7,
|
||||
__m256 v22 = _mm256_unpacklo_ps(v10, v13); // a0, a1, a2, a3, x, x, x, x,
|
||||
__m256 v23 = _mm256_unpackhi_ps(v10, v13); // a4, a5, a6, a7, x, x, x, x,
|
||||
|
||||
a = _mm256_permute2f128_ps(v22, v23, 0x20); // a0, a1, a2, a3, a4, a5, a6, a7,
|
||||
b = _mm256_permute2f128_ps(v20, v21, 0x20); // b0, b1, b2, b3, b4, b5, b6, b7,
|
||||
c = _mm256_permute2f128_ps(v20, v21, 0x31); // c0, c1, c2, c3, c4, c5, c6, c7,
|
||||
}
|
||||
|
||||
// realign four 3-packed vector to three 4-packed vector
|
||||
static void v_pack4x3to3x4(const __m128i& s0, const __m128i& s1, const __m128i& s2, const __m128i& s3, __m128i& d0, __m128i& d1, __m128i& d2)
|
||||
{
|
||||
d0 = _mm_or_si128(s0, _mm_slli_si128(s1, 12));
|
||||
d1 = _mm_or_si128(_mm_srli_si128(s1, 4), _mm_slli_si128(s2, 8));
|
||||
d2 = _mm_or_si128(_mm_srli_si128(s2, 8), _mm_slli_si128(s3, 4));
|
||||
}
|
||||
|
||||
// separate high and low 128 bit and cast to __m128i
|
||||
static void v_separate_lo_hi(const __m256& src, __m128i& lo, __m128i& hi)
|
||||
{
|
||||
lo = _mm_castps_si128(_mm256_castps256_ps128(src));
|
||||
hi = _mm_castps_si128(_mm256_extractf128_ps(src, 1));
|
||||
}
|
||||
|
||||
// interleave three 8-float vector and store
|
||||
static void store_interleave(float* ptr, const __m256& a, const __m256& b, const __m256& c)
|
||||
{
|
||||
__m128i a0, a1, b0, b1, c0, c1;
|
||||
v_separate_lo_hi(a, a0, a1);
|
||||
v_separate_lo_hi(b, b0, b1);
|
||||
v_separate_lo_hi(c, c0, c1);
|
||||
|
||||
v_uint32x4 z = v_setzero_u32();
|
||||
v_uint32x4 u0, u1, u2, u3;
|
||||
v_transpose4x4(v_uint32x4(a0), v_uint32x4(b0), v_uint32x4(c0), z, u0, u1, u2, u3);
|
||||
v_pack4x3to3x4(u0.val, u1.val, u2.val, u3.val, a0, b0, c0);
|
||||
v_transpose4x4(v_uint32x4(a1), v_uint32x4(b1), v_uint32x4(c1), z, u0, u1, u2, u3);
|
||||
v_pack4x3to3x4(u0.val, u1.val, u2.val, u3.val, a1, b1, c1);
|
||||
|
||||
#if !defined(__GNUC__) || defined(__INTEL_COMPILER)
|
||||
_mm256_storeu_ps(ptr, _mm256_setr_m128(_mm_castsi128_ps(a0), _mm_castsi128_ps(b0)));
|
||||
_mm256_storeu_ps(ptr + 8, _mm256_setr_m128(_mm_castsi128_ps(c0), _mm_castsi128_ps(a1)));
|
||||
_mm256_storeu_ps(ptr + 16, _mm256_setr_m128(_mm_castsi128_ps(b1), _mm_castsi128_ps(c1)));
|
||||
#else
|
||||
// GCC: workaround for missing AVX intrinsic: "_mm256_setr_m128()"
|
||||
_mm256_storeu_ps(ptr, _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(a0)), _mm_castsi128_ps(b0), 1));
|
||||
_mm256_storeu_ps(ptr + 8, _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(c0)), _mm_castsi128_ps(a1), 1));
|
||||
_mm256_storeu_ps(ptr + 16, _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(b1)), _mm_castsi128_ps(c1), 1));
|
||||
#endif
|
||||
}
|
||||
|
||||
int calcMinEigenValLine_AVX(const float* cov, float* dst, int width)
|
||||
{
|
||||
int j = 0;
|
||||
__m256 half = _mm256_set1_ps(0.5f);
|
||||
for (; j <= width - 8; j += 8)
|
||||
{
|
||||
__m256 v_a, v_b, v_c, v_t;
|
||||
load_deinterleave(cov + j * 3, v_a, v_b, v_c);
|
||||
v_a = _mm256_mul_ps(v_a, half);
|
||||
v_c = _mm256_mul_ps(v_c, half);
|
||||
v_t = _mm256_sub_ps(v_a, v_c);
|
||||
v_t = _mm256_add_ps(_mm256_mul_ps(v_b, v_b), _mm256_mul_ps(v_t, v_t));
|
||||
_mm256_storeu_ps(dst + j, _mm256_sub_ps(_mm256_add_ps(v_a, v_c), _mm256_sqrt_ps(v_t)));
|
||||
}
|
||||
return j;
|
||||
}
|
||||
|
||||
int calcHarrisLine_AVX(const float* cov, float* dst, double k, int width)
|
||||
{
|
||||
int j = 0;
|
||||
__m256 v_k = _mm256_set1_ps((float)k);
|
||||
|
||||
for (; j <= width - 8; j += 8)
|
||||
{
|
||||
__m256 v_a, v_b, v_c;
|
||||
load_deinterleave(cov + j * 3, v_a, v_b, v_c);
|
||||
|
||||
__m256 v_ac_bb = _mm256_sub_ps(_mm256_mul_ps(v_a, v_c), _mm256_mul_ps(v_b, v_b));
|
||||
__m256 v_ac = _mm256_add_ps(v_a, v_c);
|
||||
__m256 v_dst = _mm256_sub_ps(v_ac_bb, _mm256_mul_ps(v_k, _mm256_mul_ps(v_ac, v_ac)));
|
||||
_mm256_storeu_ps(dst + j, v_dst);
|
||||
}
|
||||
return j;
|
||||
}
|
||||
|
||||
int cornerEigenValsVecsLine_AVX(const float* dxdata, const float* dydata, float* cov_data, int width)
|
||||
{
|
||||
int j = 0;
|
||||
for (; j <= width - 8; j += 8)
|
||||
{
|
||||
__m256 v_dx = _mm256_loadu_ps(dxdata + j);
|
||||
__m256 v_dy = _mm256_loadu_ps(dydata + j);
|
||||
|
||||
__m256 v_dst0, v_dst1, v_dst2;
|
||||
v_dst0 = _mm256_mul_ps(v_dx, v_dx);
|
||||
v_dst1 = _mm256_mul_ps(v_dx, v_dy);
|
||||
v_dst2 = _mm256_mul_ps(v_dy, v_dy);
|
||||
|
||||
store_interleave(cov_data + j * 3, v_dst0, v_dst1, v_dst2);
|
||||
}
|
||||
return j;
|
||||
}
|
||||
|
||||
}
|
||||
/* End of file */
|
||||
@ -44,94 +44,17 @@
|
||||
#include "precomp.hpp"
|
||||
#include "opencl_kernels_imgproc.hpp"
|
||||
#include "opencv2/core/hal/intrin.hpp"
|
||||
#include "corner.hpp"
|
||||
|
||||
namespace cv
|
||||
{
|
||||
|
||||
#if CV_AVX
|
||||
// load three 8-packed float vector and deinterleave
|
||||
// probably it's better to write down somewhere else
|
||||
static inline void load_deinterleave(const float* ptr, __m256& a, __m256& b, __m256& c)
|
||||
{
|
||||
__m256 s0 = _mm256_loadu_ps(ptr); // a0, b0, c0, a1, b1, c1, a2, b2,
|
||||
__m256 s1 = _mm256_loadu_ps(ptr + 8); // c2, a3, b3, c3, a4, b4, c4, a5,
|
||||
__m256 s2 = _mm256_loadu_ps(ptr + 16); // b5, c5, a6, b6, c6, a7, b7, c7,
|
||||
__m256 s3 = _mm256_permute2f128_ps(s1, s2, 0x21); // a4, b4, c4, a5, b5, c5, a6, b6,
|
||||
__m256 s4 = _mm256_permute2f128_ps(s2, s2, 0x33); // c6, a7, b7, c7, c6, a7, b7, c7,
|
||||
|
||||
__m256 v00 = _mm256_unpacklo_ps(s0, s3); // a0, a4, b0, b4, b1, b5, c1, c5,
|
||||
__m256 v01 = _mm256_unpackhi_ps(s0, s3); // c0, c4, a1, a5, a2, a6, b2, b6,
|
||||
__m256 v02 = _mm256_unpacklo_ps(s1, s4); // c2, c6, a3, a7, x, x, x, x,
|
||||
__m256 v03 = _mm256_unpackhi_ps(s1, s4); // b3, b7, c3, c7, x, x, x, x,
|
||||
__m256 v04 = _mm256_permute2f128_ps(v02, v03, 0x20); // c2, c6, a3, a7, b3, b7, c3, c7,
|
||||
__m256 v05 = _mm256_permute2f128_ps(v01, v03, 0x21); // a2, a6, b2, b6, b3, b7, c3, c7,
|
||||
|
||||
__m256 v10 = _mm256_unpacklo_ps(v00, v05); // a0, a2, a4, a6, b1, b3, b5, b7,
|
||||
__m256 v11 = _mm256_unpackhi_ps(v00, v05); // b0, b2, b4, b6, c1, c3, c5, c7,
|
||||
__m256 v12 = _mm256_unpacklo_ps(v01, v04); // c0, c2, c4, c6, x, x, x, x,
|
||||
__m256 v13 = _mm256_unpackhi_ps(v01, v04); // a1, a3, a5, a7, x, x, x, x,
|
||||
__m256 v14 = _mm256_permute2f128_ps(v11, v12, 0x20); // b0, b2, b4, b6, c0, c2, c4, c6,
|
||||
__m256 v15 = _mm256_permute2f128_ps(v10, v11, 0x31); // b1, b3, b5, b7, c1, c3, c5, c7,
|
||||
|
||||
__m256 v20 = _mm256_unpacklo_ps(v14, v15); // b0, b1, b2, b3, c0, c1, c2, c3,
|
||||
__m256 v21 = _mm256_unpackhi_ps(v14, v15); // b4, b5, b6, b7, c4, c5, c6, c7,
|
||||
__m256 v22 = _mm256_unpacklo_ps(v10, v13); // a0, a1, a2, a3, x, x, x, x,
|
||||
__m256 v23 = _mm256_unpackhi_ps(v10, v13); // a4, a5, a6, a7, x, x, x, x,
|
||||
|
||||
a = _mm256_permute2f128_ps(v22, v23, 0x20); // a0, a1, a2, a3, a4, a5, a6, a7,
|
||||
b = _mm256_permute2f128_ps(v20, v21, 0x20); // b0, b1, b2, b3, b4, b5, b6, b7,
|
||||
c = _mm256_permute2f128_ps(v20, v21, 0x31); // c0, c1, c2, c3, c4, c5, c6, c7,
|
||||
}
|
||||
|
||||
// realign four 3-packed vector to three 4-packed vector
|
||||
static inline void v_pack4x3to3x4(const __m128i& s0, const __m128i& s1, const __m128i& s2, const __m128i& s3, __m128i& d0, __m128i& d1, __m128i& d2)
|
||||
{
|
||||
d0 = _mm_or_si128(s0, _mm_slli_si128(s1, 12));
|
||||
d1 = _mm_or_si128(_mm_srli_si128(s1, 4), _mm_slli_si128(s2, 8));
|
||||
d2 = _mm_or_si128(_mm_srli_si128(s2, 8), _mm_slli_si128(s3, 4));
|
||||
}
|
||||
|
||||
// separate high and low 128 bit and cast to __m128i
|
||||
static inline void v_separate_lo_hi(const __m256& src, __m128i& lo, __m128i& hi)
|
||||
{
|
||||
lo = _mm_castps_si128(_mm256_castps256_ps128(src));
|
||||
hi = _mm_castps_si128(_mm256_extractf128_ps(src, 1));
|
||||
}
|
||||
|
||||
// interleave three 8-float vector and store
|
||||
static inline void store_interleave(float* ptr, const __m256& a, const __m256& b, const __m256& c)
|
||||
{
|
||||
__m128i a0, a1, b0, b1, c0, c1;
|
||||
v_separate_lo_hi(a, a0, a1);
|
||||
v_separate_lo_hi(b, b0, b1);
|
||||
v_separate_lo_hi(c, c0, c1);
|
||||
|
||||
v_uint32x4 z = v_setzero_u32();
|
||||
v_uint32x4 u0, u1, u2, u3;
|
||||
v_transpose4x4(v_uint32x4(a0), v_uint32x4(b0), v_uint32x4(c0), z, u0, u1, u2, u3);
|
||||
v_pack4x3to3x4(u0.val, u1.val, u2.val, u3.val, a0, b0, c0);
|
||||
v_transpose4x4(v_uint32x4(a1), v_uint32x4(b1), v_uint32x4(c1), z, u0, u1, u2, u3);
|
||||
v_pack4x3to3x4(u0.val, u1.val, u2.val, u3.val, a1, b1, c1);
|
||||
|
||||
#if !defined(__GNUC__) || defined(__INTEL_COMPILER)
|
||||
_mm256_storeu_ps(ptr, _mm256_setr_m128(_mm_castsi128_ps(a0), _mm_castsi128_ps(b0)));
|
||||
_mm256_storeu_ps(ptr + 8, _mm256_setr_m128(_mm_castsi128_ps(c0), _mm_castsi128_ps(a1)));
|
||||
_mm256_storeu_ps(ptr + 16, _mm256_setr_m128(_mm_castsi128_ps(b1), _mm_castsi128_ps(c1)));
|
||||
#else
|
||||
// GCC: workaround for missing AVX intrinsic: "_mm256_setr_m128()"
|
||||
_mm256_storeu_ps(ptr, _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(a0)), _mm_castsi128_ps(b0), 1));
|
||||
_mm256_storeu_ps(ptr + 8, _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(c0)), _mm_castsi128_ps(a1), 1));
|
||||
_mm256_storeu_ps(ptr + 16, _mm256_insertf128_ps(_mm256_castps128_ps256(_mm_castsi128_ps(b1)), _mm_castsi128_ps(c1), 1));
|
||||
#endif
|
||||
}
|
||||
#endif // CV_AVX
|
||||
|
||||
static void calcMinEigenVal( const Mat& _cov, Mat& _dst )
|
||||
{
|
||||
int i, j;
|
||||
Size size = _cov.size();
|
||||
#if CV_AVX
|
||||
bool haveAvx = checkHardwareSupport(CV_CPU_AVX);
|
||||
#if CV_TRY_AVX
|
||||
bool haveAvx = CV_CPU_HAS_SUPPORT_AVX;
|
||||
#endif
|
||||
#if CV_SIMD128
|
||||
bool haveSimd = hasSIMD128();
|
||||
@ -147,23 +70,12 @@ static void calcMinEigenVal( const Mat& _cov, Mat& _dst )
|
||||
{
|
||||
const float* cov = _cov.ptr<float>(i);
|
||||
float* dst = _dst.ptr<float>(i);
|
||||
j = 0;
|
||||
#if CV_AVX
|
||||
#if CV_TRY_AVX
|
||||
if( haveAvx )
|
||||
{
|
||||
__m256 half = _mm256_set1_ps(0.5f);
|
||||
for( ; j <= size.width - 8; j += 8 )
|
||||
{
|
||||
__m256 v_a, v_b, v_c, v_t;
|
||||
load_deinterleave(cov + j*3, v_a, v_b, v_c);
|
||||
v_a = _mm256_mul_ps(v_a, half);
|
||||
v_c = _mm256_mul_ps(v_c, half);
|
||||
v_t = _mm256_sub_ps(v_a, v_c);
|
||||
v_t = _mm256_add_ps(_mm256_mul_ps(v_b, v_b), _mm256_mul_ps(v_t, v_t));
|
||||
_mm256_storeu_ps(dst + j, _mm256_sub_ps(_mm256_add_ps(v_a, v_c), _mm256_sqrt_ps(v_t)));
|
||||
}
|
||||
}
|
||||
#endif // CV_AVX
|
||||
j = calcMinEigenValLine_AVX(cov, dst, size.width);
|
||||
else
|
||||
#endif // CV_TRY_AVX
|
||||
j = 0;
|
||||
|
||||
#if CV_SIMD128
|
||||
if( haveSimd )
|
||||
@ -197,8 +109,8 @@ static void calcHarris( const Mat& _cov, Mat& _dst, double k )
|
||||
{
|
||||
int i, j;
|
||||
Size size = _cov.size();
|
||||
#if CV_AVX
|
||||
bool haveAvx = checkHardwareSupport(CV_CPU_AVX);
|
||||
#if CV_TRY_AVX
|
||||
bool haveAvx = CV_CPU_HAS_SUPPORT_AVX;
|
||||
#endif
|
||||
#if CV_SIMD128
|
||||
bool haveSimd = hasSIMD128();
|
||||
@ -214,25 +126,13 @@ static void calcHarris( const Mat& _cov, Mat& _dst, double k )
|
||||
{
|
||||
const float* cov = _cov.ptr<float>(i);
|
||||
float* dst = _dst.ptr<float>(i);
|
||||
j = 0;
|
||||
|
||||
#if CV_AVX
|
||||
#if CV_TRY_AVX
|
||||
if( haveAvx )
|
||||
{
|
||||
__m256 v_k = _mm256_set1_ps((float)k);
|
||||
|
||||
for( ; j <= size.width - 8; j += 8 )
|
||||
{
|
||||
__m256 v_a, v_b, v_c;
|
||||
load_deinterleave(cov + j * 3, v_a, v_b, v_c);
|
||||
|
||||
__m256 v_ac_bb = _mm256_sub_ps(_mm256_mul_ps(v_a, v_c), _mm256_mul_ps(v_b, v_b));
|
||||
__m256 v_ac = _mm256_add_ps(v_a, v_c);
|
||||
__m256 v_dst = _mm256_sub_ps(v_ac_bb, _mm256_mul_ps(v_k, _mm256_mul_ps(v_ac, v_ac)));
|
||||
_mm256_storeu_ps(dst + j, v_dst);
|
||||
}
|
||||
}
|
||||
#endif // CV_AVX
|
||||
j = calcHarrisLine_AVX(cov, dst, k, size.width);
|
||||
else
|
||||
#endif // CV_TRY_AVX
|
||||
j = 0;
|
||||
|
||||
#if CV_SIMD128
|
||||
if( haveSimd )
|
||||
@ -351,8 +251,8 @@ cornerEigenValsVecs( const Mat& src, Mat& eigenv, int block_size,
|
||||
if (tegra::useTegra() && tegra::cornerEigenValsVecs(src, eigenv, block_size, aperture_size, op_type, k, borderType))
|
||||
return;
|
||||
#endif
|
||||
#if CV_AVX
|
||||
bool haveAvx = checkHardwareSupport(CV_CPU_AVX);
|
||||
#if CV_TRY_AVX
|
||||
bool haveAvx = CV_CPU_HAS_SUPPORT_AVX;
|
||||
#endif
|
||||
#if CV_SIMD128
|
||||
bool haveSimd = hasSIMD128();
|
||||
@ -389,25 +289,13 @@ cornerEigenValsVecs( const Mat& src, Mat& eigenv, int block_size,
|
||||
float* cov_data = cov.ptr<float>(i);
|
||||
const float* dxdata = Dx.ptr<float>(i);
|
||||
const float* dydata = Dy.ptr<float>(i);
|
||||
j = 0;
|
||||
|
||||
#if CV_AVX
|
||||
#if CV_TRY_AVX
|
||||
if( haveAvx )
|
||||
{
|
||||
for( ; j <= size.width - 8; j += 8 )
|
||||
{
|
||||
__m256 v_dx = _mm256_loadu_ps(dxdata + j);
|
||||
__m256 v_dy = _mm256_loadu_ps(dydata + j);
|
||||
|
||||
__m256 v_dst0, v_dst1, v_dst2;
|
||||
v_dst0 = _mm256_mul_ps(v_dx, v_dx);
|
||||
v_dst1 = _mm256_mul_ps(v_dx, v_dy);
|
||||
v_dst2 = _mm256_mul_ps(v_dy, v_dy);
|
||||
|
||||
store_interleave(cov_data + j * 3, v_dst0, v_dst1, v_dst2);
|
||||
}
|
||||
}
|
||||
#endif // CV_AVX
|
||||
j = cornerEigenValsVecsLine_AVX(dxdata, dydata, cov_data, size.width);
|
||||
else
|
||||
#endif // CV_TRY_AVX
|
||||
j = 0;
|
||||
|
||||
#if CV_SIMD128
|
||||
if( haveSimd )
|
||||
|
||||
60
modules/imgproc/src/corner.hpp
Normal file
60
modules/imgproc/src/corner.hpp
Normal file
@ -0,0 +1,60 @@
|
||||
/*M///////////////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
|
||||
//
|
||||
// By downloading, copying, installing or using the software you agree to this license.
|
||||
// If you do not agree to this license, do not download, install,
|
||||
// copy or use the software.
|
||||
//
|
||||
//
|
||||
// License Agreement
|
||||
// For Open Source Computer Vision Library
|
||||
//
|
||||
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
|
||||
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
|
||||
// Copyright (C) 2014-2015, Itseez Inc., all rights reserved.
|
||||
// Third party copyrights are property of their respective owners.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without modification,
|
||||
// are permitted provided that the following conditions are met:
|
||||
//
|
||||
// * Redistribution's of source code must retain the above copyright notice,
|
||||
// this list of conditions and the following disclaimer.
|
||||
//
|
||||
// * Redistribution's in binary form must reproduce the above copyright notice,
|
||||
// this list of conditions and the following disclaimer in the documentation
|
||||
// and/or other materials provided with the distribution.
|
||||
//
|
||||
// * The name of the copyright holders may not be used to endorse or promote products
|
||||
// derived from this software without specific prior written permission.
|
||||
//
|
||||
// This software is provided by the copyright holders and contributors "as is" and
|
||||
// any express or implied warranties, including, but not limited to, the implied
|
||||
// warranties of merchantability and fitness for a particular purpose are disclaimed.
|
||||
// In no event shall the Intel Corporation or contributors be liable for any direct,
|
||||
// indirect, incidental, special, exemplary, or consequential damages
|
||||
// (including, but not limited to, procurement of substitute goods or services;
|
||||
// loss of use, data, or profits; or business interruption) however caused
|
||||
// and on any theory of liability, whether in contract, strict liability,
|
||||
// or tort (including negligence or otherwise) arising in any way out of
|
||||
// the use of this software, even if advised of the possibility of such damage.
|
||||
//
|
||||
//M*/
|
||||
|
||||
#ifndef OPENCV_IMGPROC_CORNER_HPP
|
||||
#define OPENCV_IMGPROC_CORNER_HPP
|
||||
|
||||
namespace cv
|
||||
{
|
||||
|
||||
#if CV_TRY_AVX
|
||||
int calcMinEigenValLine_AVX(const float* cov, float* dst, int width);
|
||||
int calcHarrisLine_AVX(const float* cov, float* dst, double k, int width);
|
||||
int cornerEigenValsVecsLine_AVX(const float* dxdata, const float* dydata, float* cov_data, int width);
|
||||
#endif // CV_TRY_AVX
|
||||
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* End of file */
|
||||
Loading…
Reference in New Issue
Block a user