Howtosignalprocessing
- How does Hough Transform Detect lines?
- Which preprocessing is required to be applied before Hough line transform?
- Is the Hough transform linear?
How does Hough Transform Detect lines?
If two edge points lay on the same line, their corresponding cosine curves will intersect each other on a specific (ρ, θ) pair. Thus, the Hough Transform algorithm detects lines by finding the (ρ, θ) pairs that have a number of intersections larger than a certain threshold.
Which preprocessing is required to be applied before Hough line transform?
Edge detection is often used as preprocessing to Hough preprocessing to Hough transform.
Is the Hough transform linear?
Linear Hough transform
The simplest case of Hough transform is the linear transform used for detecting straight lines. For example, consider a set of discrete image points such as come as an output from an edge detector algorithm.
