Hi,
I tried to upgrade my iOS app from OpenCV 3.0 to OpenCV 3.1, and when I try to build it gives me this error:
Screen Shot 2015-12-28 at 17.42.40.png
I just downloaded the framework from sourceforge, any idea what can I do to fix this issue?
Thanks in advance.
This _png_init_filter_functions_neon "undefined symbols for architecture arm64" issue is fixed by this commit, I think:
https://github.com/opencv/opencv/comm...
Effectively, -DENABLE_NEON=ON is incorrectly skipped on arm64 during the build before this commit.
See my answer at StackOverflow for more details:
http://stackoverflow.com/a/39046966/8...
To minimize risk, I cloned, checked out the 3.1.0 tag, and cherry-picked just the 262a52fcommit, and have built with that using instructions from https://github.com/opencv/opencv/tree... -- this appears to have worked.
Asked: 2015-12-28 11:53:59 -0600
Seen: 1,265 times
Last updated: Dec 28 '15
Were you able to solve this? I am having the exact same issue
+1.
I have found that this issue is to do with libpng.a This link has a solution however I am unable to build the source code at the moment.
Why not just download the iOS framework and add it to your frameworks? It is already built. I have completed a test project in Xcode using opencv 3.1. El Capitan 10.11.3, Xcode 7.2. No Swift yet, but I believe it will work. Works fine with Obj C.
I am facing the same problem. Does anyone have a solution? Thx, Florian