41 lines
970 B
Python
41 lines
970 B
Python
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#!/usr/bin/env python
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'''
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This example shows the functionalities of lines extraction finished by LSDDetector class.
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USAGE: lsd_lines_extraction.py [<path_to_input_image>]
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'''
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import sys
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import cv2 as cv
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if __name__ == '__main__':
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print(__doc__)
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if len(sys.argv) > 1:
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fname = sys.argv[1]
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else :
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fname = '../data/corridor.jpg'
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img = cv.imread(fname)
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if img is None:
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print('Failed to load image file:', fname)
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sys.exit(1)
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gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
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lsd = cv.line_descriptor_LSDDetector.createLSDDetector()
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lines = lsd.detect(gray, 2, 1)
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for kl in lines:
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if kl.octave == 0:
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# cv.line only accepts integer coordinate
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pt1 = (int(kl.startPointX), int(kl.startPointY))
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pt2 = (int(kl.endPointX), int(kl.endPointY))
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cv.line(img, pt1, pt2, [255, 0, 0], 2)
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cv.imshow('output', img)
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cv.waitKey(0)
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cv.destroyAllWindows()
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