opencv 2.4 is slower than 2.3 on iOS (Bug #1871)

Added by Radu Spineanu almost 13 years ago. Updated almost 13 years ago.

Status:Cancelled Start date:2012-05-01
Priority:Normal Due date:
Assignee:Vadim Pisarevsky % Done:

0%
Category:ios
Target version:2.4.2
Affected version: Operating System:
Difficulty: HW Platform:
Pull request:

Description

I'm building opencv using this script https://github.com/aptogo/OpenCVForiPhone/blob/master/opencvbuild.sh, or
the regular provided configure-device_xcode.sh.

The resulting build is very slow when switching from a previous already compiled version 2.3 provided by the atpogo github repository.
I'm testing with two features: cvGrabFrame and phase correlation.

The project gets build with -O0 and I guess that's not normal and it should be with -O3, right?

History

#1
Updated by Andrey Kamaev almost 13 years ago

  • Category set to ios

#2
Updated by Vadim Pisarevsky almost 13 years ago

Use the build scripts, supplied with OpenCV (opencv/ios) and check these build instructions:
http://docs.opencv.org/doc/tutorials/introduction/ios_install/ios_install.html

optimizations flags should be set correctly when using our scripts

  • Status changed from Open to Cancelled
  • Target version set to 2.4.2
  • Assignee set to Vadim Pisarevsky

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