Hough Transform

The Hough transform is a general technique that allows to detect the flat curves in binary images [Gon93]. The current version of Intel IPP implements the following:

• Detection of the straight lines that are defined by the parametric equation:

  r = x*cos(Θ) + y*sin(Θ), where r and Θ are the length and angle from the origin of a normal to the line, respectively.

• Detection of lines using the probabilistic Hough transform algorithm [Matas00].

• HoughLineGetSize
  Computes the size of the working buffer for the straight lines detection.
• HoughLine
  Detects straight lines in the source image.
• HoughLine_Region
  Detects straight lines with the specified range of parameters in the source image.
• HoughProbLineGetSize
  Computes the size of the working buffer and spec structure for line detection with the probabilistic Hough transform algorithm.
• HoughProbLineInit
  Initializes the specification structure for line detection with the probabilistic Hough transform algorithm.
• HoughProbLine
  Detects lines in the source image using the probabilistic Hough transform.