Differences between Include Dirst - Compiled x Installed

asked 2019-11-12 11:37:28 -0600

AdjustedStorm gravatar image

Hello,

I have created a project using opencv and CMake. I am using the following in CMake:

find_package( OpenCV REQUIRED )
message(${OpenCV_INCLUDE_DIRS})

However, on my computer (OpenCV manually compiled) this points to /usr/local/include/opencv4. Thus, when I use #include <opencv2/core.hpp> it compiles.

I was trying to compile the project on a friends computer (Ubuntu, just apt-get install libopencv-dev). On his computer, this points to /usr/include/opencv. From what I understand, this folder is for the older c-style API, right? His computer has a /usr/include/opencv2/core.hpp, so I guess that in order to be able to #include <opencv2/core.hpp> the include dir should be /usr/include.

How should I proceed in order to ensure this works accross computers (and OS's, since one of the guys at the lab will have to run Windows)?

Thanks in advance!

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apt-get install libopencv-dev

this will install an older, 3. 2.x opencv version, with a different include folder structure

berak gravatar imageberak ( 2019-11-13 01:40:39 -0600 )edit

I have added on CMake requirements for 4.0.0 at least for OpenCV. However, example from older versions signal the same "opencv2/header.hpp" structure.

E.g at opencv 3.2.0 https://docs.opencv.org/3.2.0/dc/dd3/...

#include "opencv2/imgproc.hpp"
AdjustedStorm gravatar imageAdjustedStorm ( 2019-11-13 04:05:27 -0600 )edit
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