SURF and SIFT algorithms doesn't work in Open CV 3.0 Java

I merge opencv and opencv-contrib from github repo

My Operator system is Windows 8.1

Proceed as follows:

1.Download Github Repo. opencv (Itseez/opencv) opencv_contrib (Itseez/opencv_contrib)

D:opencv_mergeopencv-master D:opencv_mergeopencv_contrib-master

2. Download and Install CMake Lastest Version (current is 3.5.2)

3. CMake Generate (1) Open CMake GUI setting path source code: D:opencv_mergeopencv-master build the binaries: D:opencv_mergeopencv-masterbuild (2) press 'Configure' wait for 'Configuring done'

watch output

OpenCV modules: To be built: core fla hdf imgproc ml photo reg surface_matching video d fuzzy imgcodecs shape videoio highgui objdetect plot superres ts xobjdetect xphoto bgsegm bioinspired dpm face features2d line_descriptor saliency text calib3d ccalib datasets rgbd stereo structured_light tracking videostab xfeatures2d ximgproc aruco java optflow stitching matlab python2 Disabled: world contrib_world Disabled by dependency: - Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev python3 viz cvv sfm

Java: ant: C:/apache-ant-1.9.7/bin/ant.bat (ver 1.9.7) JNI: C:/Program Files/Java/jdk1.8.0_91/include C:/Program Files/Java/jdk1.8.0_91/include/win32 C:/Program Files/Java/jdk1.8.0_91/include Java wrappers: YES Java tests: YES

(3) setting OPENCV_EXTRA_MODULES_PATH: D:/opencv_merge/opencv_contrib-master/modules

press 'Configure' watch output double check again

(4) Generate

4. open OpenCV.sln

In 'Solution Explorer' CMakeTargets-->Install -->Right Click -->Build

5. get opencv-310.jar and opencv_java310.dll (D:opencv_mergeopencv-masterbuildinstalljava)

6. Netbeans setting (1) add Opencv Library (add opencv-310.jar to Library) (2) VM options: -Djava.library.path=D:opencv_mergeopencv-masterbuildinstalljava

7. Run Project

8. write some code: public static void main(String[] args) { System.loadLibrary(Core.NATIVE_LIBRARY_NAME); ..... FeatureDetector orbDetector = FeatureDetector.create(FeatureDetector.ORB); ..... FeatureDetector siftDetector = FeatureDetector.create(FeatureDetector.SIFT); ..... FeatureDetector surfDetector = FeatureDetector.create(FeatureDetector.SURF); }

9. run project and test

ORB detector can be executed (of course)

but SIFT and SURF detector caot enter output error

I do a little modification after I saw this solustion: ( SURF and SIFT algorithms doesn't work in OpenCV 3.0 Java )

I edit 'D:opencv_mergeopencv-mastermodulesfeatures2dmiscjavasrccppfeatures2d_manual.hpp' according to the above URL and then begins the second step.

However, in the fifth step 'opencv_java310.dll' not be found in java folder(D:opencv_mergeopencv-masterbuildinstalljava) I try same steps repeated at least 5 times but still no 'opencv_java310.dll'

The reason seems to be that I manually changed the 'features2d_manual.hpp'

I've been out all day :( Who can help me solve this problem

Thank you guys