| OpenCV 4.3.0 Open Source Computer Vision

samples/python/stitching.py

A basic example on image stitching in Python.

1 #!/usr/bin/env python
2
3 '''
4 Stitching sample
5 ================
6
7 Show how to use Stitcher API from python in a simple way to stitch panoramas
8 or scans.
9 '''
10
11 # Python 2/3 compatibility
12 from __future__ import print_function
13
14 import numpy as np
15 import cv2 as cv
16
17 import argparse
18 import sys
19
20 modes = (cv.Stitcher_PANORAMA, cv.Stitcher_SCANS)
21
22 parser = argparse.ArgumentParser(prog='stitching.py', description='Stitching sample.')
23 parser.add_argument('--mode',
24 type = int, choices = modes, default = cv.Stitcher_PANORAMA,
25 help = 'Determines configuration of stitcher. The default is `PANORAMA` (%d), '
26 'mode suitable for creating photo panoramas. Option `SCANS` (%d) is suitable '
27 'for stitching materials under affine transformation, such as scans.' % modes)
28 parser.add_argument('--output', default = 'result.jpg',
29 help = 'Resulting image. The default is `result.jpg`.')
30 parser.add_argument('img', nargs='+', help = 'input images')
31
32 __doc__ += '\n' + parser.format_help()
33
34 def main():
35 args = parser.parse_args()
36
37 # read input images
38 imgs = []
39 for img_name in args.img:
40 img = cv.imread(cv.samples.findFile(img_name))
41 if img is None:
42 print("can't read image " + img_name)
43 sys.exit(-1)
44 imgs.append(img)
45
46 stitcher = cv.Stitcher.create(args.mode)
47 status, pano = stitcher.stitch(imgs)
48
49 if status != cv.Stitcher_OK:
50 print("Can't stitch images, error code = %d" % status)
51 sys.exit(-1)
52
53 cv.imwrite(args.output, pano)
54 print("stitching completed successfully. %s saved!" % args.output)
55
56 print('Done')
57
58
59 if __name__ == '__main__':
60 print(__doc__)
61 main()
62 cv.destroyAllWindows()