Detection and Extraction of Straight Lines with Specific Lengths Using Hough Transform

This MATLAB source code implements Hough transform to detect straight lines with specific lengths in digital images and extracts them from the original image. The algorithm utilizes MATLAB's Image Processing Toolbox functions, primarily hough() for transformation and houghpeaks() for peak detection. Through parameter analysis, the code calculates the slopes of detected lines, providing insights into their orientation and inclination. The implementation includes length thresholding functionality that filters detected lines based on minimum length criteria using houghlines() function. By employing Hough transform algorithm, the code effectively identifies linear features in images and isolates them from the background, enhancing visual prominence of detected lines. The slope calculation involves trigonometric transformations from Hough space parameters (theta and rho values) to Cartesian coordinates, enabling quantitative analysis of line characteristics. This implementation serves as a valuable tool in image processing and computer vision applications, assisting users in analyzing linear features through robust parameter extraction and geometric calculations.