Developer Reference for Intel® Integrated Performance Primitives 2019
Detects lines in the source image using the probabilistic Hough transform.
IppStatus ippiHoughProbLine_8u32f_C1R(const Ipp8u* pSrc, int srcStep, IppiSize roiSize, int threshold, int lineLength, int lineGap, IppiPoint* pLine, int maxLineCount, int* pLineCount, Ipp8u* pBuffer, const IppiHoughProbSpec* pSpec);
ippcv.h
Headers: ippcore.h, ippvm.h, ipps.h, ippi.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib, ippi.lib
Pointer to the source image ROI.
Distance, in bytes, between the starting points of consecutive lines in the source image.
Size of the source image ROI in pixels.
Minimum number of points that are required to detect the line.
Minimum length of the line.
Maximum length of the gap between lines.
Pointer to the detected line: pLine[2*n] indicates beginning of the line, pLine[2*n+1] indicates end of the line.
Number of detected lines.
Number of elements in the destination buffer.
Pointer to the working buffer.
Pointer to the specification structure.
This function operates with ROI.
This function detects line segments of the binary pSrc image using the probabilistic Hough transform. Before using this function, compute the size of the working buffer and specification structure using the ippiHoughProbGetSize function and initialize the structure using the ippiHoughProbLineInit function.
This function implements the probabilistic Hough transform algorithm for line detection, described in [Matas00].
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error if one of the specified pointers is NULL. |
ippStsSizeErr |
Indicates an error condition if roiSize has a field with zero or negative value; or if maxLineCount is less than or equal to 0. |
ippStsStepErr |
Indicates an error condition if srcStep has an illegal value. |
ippStsBadArgErr |
Indicates an error condition if threshold is less than or equal to 0. |
ippStsDstSizeLessExpected |
Indicates a warning if number of the detected lines is greater than the size of the destination buffer maxLineCount. |