mzucker / unproject_text Goto Github PK

m-c02sh1f0g8wl:unproject_text-master arg000m$ python unproject_text.py deskew0.jpg
Traceback (most recent call last):
File "unproject_text.py", line 503, in
main()
File "unproject_text.py", line 490, in main
contours, hierarchy = get_contours(img)
File "unproject_text.py", line 135, in get_contours
cv2.CHAIN_APPROX_NONE)
ValueError: need more than 2 values to unpack

could you help me with this ?

Python 3 / OSX

$ python3 unproject_text/unproject_text.py samples/hd/IMG_1234.jpg
Traceback (most recent call last):
File "unproject_text/unproject_text.py", line 503, in
main()
File "unproject_text/unproject_text.py", line 490, in main
contours, hierarchy = get_contours(img)
File "unproject_text/unproject_text.py", line 135, in get_contours
cv2.CHAIN_APPROX_NONE)
ValueError: not enough values to unpack (expected 3, got 2)

Tried to run the program on some images, for some it worked, but on many I get this error:

python3 unproject_text.py lp8.png

abs_area_cutoff = 18.7572
got 6 contours with 1 small.
got bounding rect -281 163 583 58
got bounding rect -305 186 586 12
got bounding rect 263 197 3 1
Traceback (most recent call last):
File "unproject_text.py", line 503, in
main()
File "unproject_text.py", line 495, in main
SRH = skew_detect(img, contours, RH)
File "unproject_text.py", line 468, in skew_detect
res = scipy.optimize.minimize_scalar(f, (-2.0, 0.0, 2.0))
File "/usr/local/lib/python3.6/site-packages/scipy/optimize/_minimize.py", line 653, in minimize_scalar
return _minimize_scalar_brent(fun, bracket, args, **options)
File "/usr/local/lib/python3.6/site-packages/scipy/optimize/optimize.py", line 2108, in _minimize_scalar_brent
brent.optimize()
File "/usr/local/lib/python3.6/site-packages/scipy/optimize/optimize.py", line 1892, in optimize
xa, xb, xc, fa, fb, fc, funcalls = self.get_bracket_info()
File "/usr/local/lib/python3.6/site-packages/scipy/optimize/optimize.py", line 1880, in get_bracket_info
raise ValueError("Not a bracketing interval.")
ValueError: Not a bracketing interval.

The image I tried was:
https://liorazi.github.io/lp8.png

What is the minimun size recommended for a good processing?