opencv3.0 contrib install fail. [closed]

asked 2015-09-25 08:54:33 -0600

korea_baby gravatar image

I know a little c language or c++ languages. I wanted to use sift,surf in the Java language.

I had to download the opencv3.0.0. After that the c:\opencv I unpacked the archive.

I use it only in Java. So after running the eclipse opencv-300.jar we have added to the library in the project.

I had to download the opencv_contrib-master.zip After that the c:\opencv_contrib-master I unpacked the archive. I've run cmake-gui.

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This was the setting, pressed a button called configure.

After that

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The value of OPENCV_EXTRA_MODULES_PATH "c: / opencv_contrib-master / modules" changed to. After the configure button was pressed. And the build button was pressed.

I did exactly?

anyways, After running these opencv-300.jar file it has not changed. I still can not use the sift and surf. Please help me.

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Closed for the following reason question is not relevant or outdated by sturkmen
close date 2020-11-22 04:04:05.521320

Comments

sorry for the bad news, but unfortunately, there are no java wrappers for xfeatures2d atm.

(call it a bug, - it's not a problem with your build)

berak gravatar imageberak ( 2015-09-25 09:01:56 -0600 )edit

I would like to obtain the source code that implements the sift or surf using Java. Or I have a source code that implements the feature matching using Java. Not to use on Android. Please help me.

korea_baby gravatar imagekorea_baby ( 2015-09-25 09:02:58 -0600 )edit

the long story is, that there's a python script generating java wrappers around c++ code.

something on the way there broke, when moving to 3.0, and splitting everything up into 2 seperate repos.

in other words, there is no real java code, just wrappers around c++ functionality. you might try to create your own , using JNI, but this sounds difficult, and no idea, if it is possible at all.

berak gravatar imageberak ( 2015-09-25 09:08:46 -0600 )edit

falling back to opencv2.4 might be another alternative for now.

berak gravatar imageberak ( 2015-09-25 09:13:15 -0600 )edit

Tell me how to install the 2.4 version. please. Can I install javacv? together?

korea_baby gravatar imagekorea_baby ( 2015-09-25 09:18:07 -0600 )edit

I am difficult to understand. Please describe loosen easily. I can not speak English very well. Please tell me an easy word.

korea_baby gravatar imagekorea_baby ( 2015-09-25 09:18:51 -0600 )edit

if you got the code from github, it's just a git checkout 2.4 , then repeat the cmake/build process (without the contrib repo)

no idea about 3rd party javacv. why do you think, you need it ?

berak gravatar imageberak ( 2015-09-25 09:20:19 -0600 )edit

In order to use opencv2.4 in Java ... javacv is Not Necessary?

korea_baby gravatar imagekorea_baby ( 2015-09-25 09:32:22 -0600 )edit

no. javacv is an alternative c++ - to - java wrapping mechanism. unfortunately, theirs is a bit outdated, and incomplete.

berak gravatar imageberak ( 2015-09-25 09:40:17 -0600 )edit

Then When I installed the 2.4 Can I use the sift and surf?

korea_baby gravatar imagekorea_baby ( 2015-09-25 09:46:41 -0600 )edit
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