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Added ippiHoughProbLine to cv::HoughLinesP

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This commit is contained in:
Alexander Karsakov
2014-04-23 11:59:19 +04:00
parent f3d1001c5d
commit 1909978f7d
3 changed files with 57 additions and 35 deletions
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modules/imgproc/src/hough.cpp
+30 -2
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@@ -103,11 +103,12 @@ HoughLinesStandard( const Mat& img, float rho, float theta,
IppPointPolar delta = { rho, theta };
IppPointPolar dstRoi[2] = {{(Ipp32f) -(width + height), (Ipp32f) min_theta},{(Ipp32f) (width + height), (Ipp32f) max_theta}};
int bufferSize;
int ipp_linesMax = std::min(linesMax, numangle*numrho);
int nz = countNonZero(img);
int ipp_linesMax = std::min(linesMax, nz*numangle/threshold);
int linesCount = 0;
lines.resize(ipp_linesMax);
IppStatus ok = ippiHoughLineGetSize_8u_C1R(srcSize, delta, ipp_linesMax, &bufferSize);
Ipp8u* buffer = ippsMalloc_8u(bufferSize);
Ipp8u* buffer = ippsMalloc_8u(bufferSize);
if (ok >= 0) ok = ippiHoughLine_Region_8u32f_C1R(image, step, srcSize, (IppPointPolar*) &lines[0], dstRoi, ipp_linesMax, &linesCount, delta, threshold, buffer);
ippsFree(buffer);
if (ok >= 0)
@@ -115,6 +116,8 @@ HoughLinesStandard( const Mat& img, float rho, float theta,
lines.resize(linesCount);
return;
}
lines.clear();
setIppErrorStatus();
#endif
AutoBuffer<int> _accum((numangle+2) * (numrho+2));
@@ -424,6 +427,31 @@ HoughLinesProbabilistic( Mat& image,
int numangle = cvRound(CV_PI / theta);
int numrho = cvRound(((width + height) * 2 + 1) / rho);
#if (defined(HAVE_IPP) && !defined(HAVE_IPP_ICV_ONLY) && IPP_VERSION_X100 >= 801 && 0)
IppiSize srcSize = { width, height };
IppPointPolar delta = { rho, theta };
IppiHoughProbSpec* pSpec;
int bufferSize, specSize;
int ipp_linesMax = std::min(linesMax, numangle*numrho);
int linesCount = 0;
lines.resize(ipp_linesMax);
IppStatus ok = ippiHoughProbLineGetSize_8u_C1R(srcSize, delta, &specSize, &bufferSize);
Ipp8u* buffer = ippsMalloc_8u(bufferSize);
pSpec = (IppiHoughProbSpec*) malloc(specSize);
if (ok >= 0) ok = ippiHoughProbLineInit_8u32f_C1R(srcSize, delta, ippAlgHintNone, pSpec);
if (ok >= 0) ok = ippiHoughProbLine_8u32f_C1R(image.data, image.step, srcSize, threshold, lineLength, lineGap, (IppiPoint*) &lines[0], ipp_linesMax, &linesCount, buffer, pSpec);
free(pSpec);
ippsFree(buffer);
if (ok >= 0)
{
lines.resize(linesCount);
return;
}
lines.clear();
setIppErrorStatus();
#endif
Mat accum = Mat::zeros( numangle, numrho, CV_32SC1 );
Mat mask( height, width, CV_8UC1 );
std::vector<float> trigtab(numangle*2);