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canny

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This commit is contained in:
Ilya Lavrenov 2014-09-24 16:07:15 +00:00
parent 047abb0050
commit d30ce2b9ac
1 changed files with 19 additions and 0 deletions
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19
modules/imgproc/src/canny.cpp
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@ -361,6 +361,13 @@ void cv::Canny( InputArray _src, OutputArray _dst,
_mm_storeu_si128((__m128i *)(_norm + j + 4), v_norm); _mm_storeu_si128((__m128i *)(_norm + j + 4), v_norm);
} }
} }
#elif CV_NEON
for ( ; j < width - 8; j += 8)
{
int16x8_t v_dx = vld1q_s16(_dx + j), v_dy = vld1q_s16(_dy + j);
vst1q_s32(_norm + j, vaddq_s32(vmovl_s16(vget_low_s16(v_dx)), vmovl_s16(vget_low_s16(v_dy))));
vst1q_s32(_norm + j + 4, vaddq_s32(vmovl_s16(vget_high_s16(v_dx)), vmovl_s16(vget_high_s16(v_dy))));
}
#endif #endif
for ( ; j < width; ++j) for ( ; j < width; ++j)
_norm[j] = std::abs(int(_dx[j])) + std::abs(int(_dy[j])); _norm[j] = std::abs(int(_dx[j])) + std::abs(int(_dy[j]));
@ -386,6 +393,18 @@ void cv::Canny( InputArray _src, OutputArray _dst,
_mm_storeu_si128((__m128i *)(_norm + j + 4), v_norm); _mm_storeu_si128((__m128i *)(_norm + j + 4), v_norm);
} }
} }
#elif CV_NEON
for ( ; j < width - 8; j += 8)
{
int16x8_t v_dx = vld1q_s16(_dx + j), v_dy = vld1q_s16(_dy + j);
int32x4_t v_dxp = vmovl_s16(vget_low_s16(v_dx)), v_dyp = vmovl_s16(vget_low_s16(v_dy));
int32x4_t v_dst = vaddq_s32(vmulq_s32(v_dxp, v_dxp), vmulq_s32(v_dyp, v_dyp));
vst1q_s32(_norm + j, v_dst);
v_dxp = vmovl_s16(vget_high_s16(v_dx)), v_dyp = vmovl_s16(vget_high_s16(v_dy));
v_dst = vaddq_s32(vmulq_s32(v_dxp, v_dxp), vmulq_s32(v_dyp, v_dyp));
vst1q_s32(_norm + j, v_dst);
}
#endif #endif
for ( ; j < width; ++j) for ( ; j < width; ++j)
_norm[j] = int(_dx[j])*_dx[j] + int(_dy[j])*_dy[j]; _norm[j] = int(_dx[j])*_dx[j] + int(_dy[j])*_dy[j];