[MacPorts] #58873: opencv 3.4.7 broken?

MacPorts noreply at macports.org
Sat Aug 24 22:31:21 UTC 2019

#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

 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)
 $ ./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)
 error: (-7:Iterations do not converge) NaN encountered. in function

 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>
MacPorts <https://www.macports.org/>
Ports system for macOS

More information about the macports-tickets mailing list