no jniopencv_highgui in java.library.path

[Deepak Pal]

Please Help me I am getting the following exception when i am trying to run a simple program

following is the error

Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopencv_highgui in java.library.path

at java.lang.ClassLoader.loadLibrary(Unknown Source)

at java.lang.Runtime.loadLibrary0(Unknown Source)

at java.lang.System.loadLibrary(Unknown Source)

at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:711)

at com.googlecode.javacpp.Loader.load(Loader.java:586)

at com.googlecode.javacpp.Loader.load(Loader.java:540)

at com.googlecode.javacv.cpp.opencv_highgui.<clinit>(opencv_highgui.java:79)

at JavaCv1.main(JavaCv1.java:22)

Caused by: java.lang.UnsatisfiedLinkError: C:\Users\Deepak\AppData\Local\Temp\javacpp4684178345609\jniopencv_highgui.dll: Access is denied

at java.lang.ClassLoader$NativeLibrary.load(Native Method)

at java.lang.ClassLoader.loadLibrary0(Unknown Source)

at java.lang.ClassLoader.loadLibrary(Unknown Source)

at java.lang.Runtime.load0(Unknown Source)

at java.lang.System.load(Unknown Source)

at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:700)

... 4 more

and Here is the program

import com.googlecode.javacv.CanvasFrame;

import static com.googlecode.javacv.cpp.opencv_core.IPL_DEPTH_8U;

import com.googlecode.javacv.cpp.opencv_core.IplImage;

import static com.googlecode.javacv.cpp.opencv_core.cvCreateImage;

import static com.googlecode.javacv.cpp.opencv_core.cvGetSize;

import static com.googlecode.javacv.cpp.opencv_core.cvReleaseImage;

import static com.googlecode.javacv.cpp.opencv_highgui.cvLoadImage;

import static com.googlecode.javacv.cpp.opencv_highgui.cvSaveImage;

import static com.googlecode.javacv.cpp.opencv_highgui.cvShowImage;

import static com.googlecode.javacv.cpp.opencv_highgui.cvWaitKey;

import static com.googlecode.javacv.cpp.opencv_imgproc.CV_BGR2GRAY;

import static com.googlecode.javacv.cpp.opencv_imgproc.CV_BGR2HSV;

import static com.googlecode.javacv.cpp.opencv_imgproc.cvCvtColor;

public class JavaCv1 {

/**

* @param args

*/

public static void main(String[] args) {

IplImage img = cvLoadImage("C:\\Users\\Deepak\\Pictures\\Hololens.jpg");

IplImage hsvimg = cvCreateImage(cvGetSize(img),IPL_DEPTH_8U,3);

IplImage grayimg = cvCreateImage(cvGetSize(img),IPL_DEPTH_8U,1);

cvCvtColor(img,hsvimg,CV_BGR2HSV);

cvCvtColor(img,grayimg,CV_BGR2GRAY);

cvShowImage("Original",img);

cvShowImage("HSV",hsvimg);

cvShowImage("GRAY",grayimg);

cvWaitKey();

cvSaveImage("Original.jpg",img);

cvSaveImage("HSV.jpg",hsvimg);

cvSaveImage("GRAY.jpg",grayimg);

cvReleaseImage(img);

cvReleaseImage(hsvimg);

cvReleaseImage(grayimg);

}

}

Few days ago it was working fine but I deleted all my Temp files then it is not working

[Samuel Audet]

On 02/21/2016 11:47 PM, Deepak Pal wrote:
> Caused by: java.lang.UnsatisfiedLinkError:
> C:\Users\Deepak\AppData\Local\Temp\javacpp4684178345609\jniopencv_highgui.dll:
> Access is denied

It looks like you've accidentally changed the permissions on your temp
folder. You'll need to fix this if you want JavaCV to work!

Samuel

[Pete Helgren]

Samuel,

Is this something that can be configured at the application level?  I am also running into this on Linux and although I know I can mount the /tmp folder as exec so the libraries can run, it is a security risk.  Any recommendations? 

Pete

[Pete Helgren]

I am going to answer my own question (since I have tested the results and it works).  Set the -Djava.io.tmpdir= to whatever folder you want, and set the correct permissions for it rather than messing with the system's temp folder (which, like I said in Linux is noexec).  

[Samuel Audet]

Actually, it's also possible to specify a cache dir with
"org.bytedeco.javacpp.cachedir":
http://bytedeco.org/javacpp/apidocs/org/bytedeco/javacpp/Loader.html#getCacheDir--

Unlike "java.io.tmpdir", that only affects JavaCPP, and you could
basically use the cache directory of your application.

Samuel

[Refer]

Please Help me I am getting the following exception when i am trying to run a simple program

following is the error

Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopencv_highgui in java.library.path

 Have you added your OS jar that allows you to run opencv? An example: If you're working in windows x64 you should add the dll jar that allows run javacv, I mean, add opencv-windows-x64.jar which contains dlls for work with some methods of javacv.