[MacPorts] #58873: opencv 3.4.7 broken?

[MacPorts]

#58873: opencv 3.4.7 broken?
---------------------------+----------------------
  Reporter:  renzresearch  |      Owner:  (none)
      Type:  defect        |     Status:  reopened
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.5.4
Resolution:                |   Keywords:
      Port:  opencv        |
---------------------------+----------------------

Comment (by kencu):

 So - I get the same.

 This <https://answers.opencv.org/question/212409/error-in-
 findtransformecc/> suggests you actually do need to pass all the
 parameters, and can't skip them, when using python at least.

 This version of your code doesn't generate a runtime error (but doesn't
 actually compute out to a good answer, sorry):
 {{{
 #!/usr/bin/env python

 import numpy, cv2

 mode = cv2.MOTION_EUCLIDEAN
 crit = (cv2.TERM_CRITERIA_EPS | cv2.TERM_CRITERIA_COUNT, 50, 0.001)
 init = numpy.eye(2, 3,    dtype = numpy.float32)
 refe = numpy.ones([4, 5], dtype = numpy.float32)
 move = numpy.ones([4, 5], dtype = numpy.float32)

 cv2.findTransformECC(refe, move, init, mode, crit, None, 5)
 }}}
 gives:
 {{{
 $ ./testECC.py
 Traceback (most recent call last):
   File "./testECC.py", line 11, in <module>
     cv2.findTransformECC(refe, move, init, mode, crit, None, 5)
 cv2.error: OpenCV(3.4.7)
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.7/modules/video/src/ecc.cpp:557:
 error: (-7:Iterations do not converge) NaN encountered. in function
 'findTransformECC'
 }}}


 So -- looks like the function needs to have something sent along to it in
 the 6 & 7 positions, and looks like the MacPorts implementation of
 `opencv` is not actually broken.

-- 
Ticket URL: <https://trac.macports.org/ticket/58873#comment:11>
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