JavaCV/OpenCV: cvLoadImage not working
I installed the JavaCV/OpenCV libraries, and I'm having a problem with the basic example code.
According to several examples that I have looked at, this code should load an image:
IplImage image = cvLoadImage("C:img.jpg");
But, when I run that I get a "cannot find symbol" error.
Since this is my first time using it, I'm not sure if I messed the install up or not.
According to the newest JavaCV readme, I do have the correct version of OpenCV. I also have all the JavaCV jar files imported. As far as I can tell, I also have all the paths set correctly too.
Anyone know what the problem is?
Edit:
Full code:
import com.googlecode.javacv.CanvasFrame;
import com.googlecode.javacv.cpp.opencv_core.IplImage;
import java.io.File;
public class demo {
public static void main(String[] args)
{
IplImage image = cvLoadImage("C:img.jpg");
final CanvasFrame canvas = new CanvasFrame("Demo");
canvas.showImage(image);
canvas.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
}
}
Error when I try to run it:
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: cvLoadImage at javacv.demo.main(demo.java:17)
Java Result: 1
Seems like it is claiming cvLoadImage doesn't take a string as an argument.
A walk around that i find for you is to load the image by ImageIO and passe it later to IplImage
eg:
BufferedImage img = ImageIO.read(new File("C:img.jpg") );
IplImage origImg = IplImage.createFrom(img);
这解决了我的问题： import static org.bytedeco.javacpp.opencv_imgcodecs.*;
You have to add this import statement:
import static org.bytedeco.javacpp.opencv_imgcodecs.cvLoadImage; This is required so that the static method cvLoadImage can be used without using the class name.
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