Size of executable when static

asked 2017-09-26 08:22:39 -0500

carton99 gravatar image

updated 2017-09-26 08:47:52 -0500


I use openCV without extra modules in static mode install. I compile my own application with cmake and -03 option.

My program work but the size of my executable is very hight > 60Mo.

I analysed process of compilation and do step by step compilation program and I see than when I add a filter such as "Blur" and "medianBlur" my programme take 40Mo of size.

What is the way to reduce size of program ?

EDIT: See my option compilation:

OpenCV modules:
--     To be built:                 core flann imgproc ml objdetect photo video imgcodecs shape videoio highgui superres ts features2d calib3d stitching videostab
--     Disabled:                    java world
--     Disabled by dependency:      -
--     Unavailable:                 cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev python2 python3 viz
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i',m gettin more like 6.6 mb on ubuntu

berak gravatar imageberak ( 2017-09-26 08:55:46 -0500 )edit

On Windows I got ~7,5MB for a typical, small terminal application with static build until OpenCV 3.2. Since OpenCV 3.3 it is about twice the size ~19MB. I was wondering what causes this increase.

@carton99: Is this a release build? Did you play around with optimization fllags?

matman gravatar imagematman ( 2017-09-26 12:17:15 -0500 )edit

Yes I try with -DCMAKE_BUILD_TYPE=Release option and -Os and -03 optimization option

carton99 gravatar imagecarton99 ( 2017-09-26 12:31:22 -0500 )edit