导入jar包需要dll
Image转换成Mat
package opencv;
import org.opencv.core.*;
import org.opencv.imgcodecs.Imgcodecs;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
public class Test7 {
static {
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);//加载库,否则会出错
}
public static void main(String[] args) throws IOException {
Image i = ImageIO.read(new File("D:\\1.png"));//Image图片
Mat m = new Mat(((BufferedImage) i).getHeight(), ((BufferedImage) i).getWidth(), CvType.CV_8UC3);//Mat图片
DataBuffer d = ((BufferedImage) i).getRaster().getDataBuffer();//获取输入流
byte[] b = ((DataBufferByte) d).getData();//Image转换成二进制数据
m.put(0, 0, b);//二进制数据转换成Mat
Imgcodecs.imwrite("D:\\2.png", m)