[英]java opencv error insufficient memory and assertion failed
我正在使用opencv库的程序上使用java来获取图像文件夹并仅裁剪面孔。 它使用来自opencv的面部识别。 我可以使用它,但是当我尝试使用较大的图像文件夹时,由于以下错误而停止:
OpenCV错误:cv :: OutOfMemoryError中的内存不足(未能分配411068928字节),文件C:\\ builds \\ master_PackSlaveAddon-win32-vc12-static \\ opencv \\ modules \\ core \\ src \\ alloc.cpp,第52行OpenCV错误:断言在cv :: Mat :: create中失败(u!= 0),文件C:\\ builds \\ master_PackSlaveAddon-win32-vc12-static \\ opencv \\ modules \\ core \\ src \\ matrix.cpp,第411行线程“ main”中的异常CvException [org.opencv.core.CvException:cv :: Exception:C:\\ builds \\ master_PackSlaveAddon-win32-vc12-static \\ opencv \\ modules \\ core \\ src \\ matrix.cpp:411:错误:(-215)u!在org.opencv.objdetect.CascadeClassifier.detectMultiScale_1(本机方法)在org.opencv.objdetect.CascadeClassifier.detectMultiScale_1(本机方法)处的函数cv :: Mat :: create =在FaceDetector.main(FaceDetector)处。 Java:42)
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.plaf.synth.SynthSeparatorUI;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.MatOfRect;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
import org.opencv.objdetect.CascadeClassifier;
public class FaceDetector {
public static void main(String[] args) throws IOException {
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
System.out.println("\nRunning FaceDetector");
CascadeClassifier faceDetector = new CascadeClassifier("C:/Users/Family/workspace/detect face/haarcascade_frontalface_alt.xml");
File folder = new File("C:\\Users\\Family\\Downloads\\Photos (4)");
File[] listOfFiles = folder.listFiles();
for (int j = 0; j < listOfFiles.length; j++) {
System.out.println(listOfFiles[j]);
}
for (int i = 0; i < listOfFiles.length-1; i++){
String picname = listOfFiles[i].toString();
System.out.println("reading: " + listOfFiles[i]);
Mat image = Imgcodecs.imread(picname);
MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale(image, faceDetections);
System.out.println(String.format("Detected %s faces", faceDetections.toArray().length));
for (Rect rect : faceDetections.toArray()) {
Imgproc.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar (0, 255, 0));
}
Rect recta = new Rect();
for (Rect rect : faceDetections.toArray()) {
recta.x = rect.x;
recta.y = rect.y;
recta.width = rect.width;
recta.height = rect.height;
}
if (faceDetections.toArray().length == 1) {
BufferedImage picture = ImageIO.read(new File(picname));
BufferedImage croppedImage = picture.getSubimage(recta.x, recta.y, recta.width, recta.height);
// File finalCropped = new File(listOfFiles[i].toString()+"cropped.jpg");
File finalCropped = new File("C:/Users/Family/Downloads/CroppedImages/" + "cropped" + (i + 140) + ".jpg");
ImageIO.write(croppedImage, "jpg", finalCropped);
System.out.println("Cropping " + i + "/" + listOfFiles.length);
}
faceDetections.release();
}
System.out.println("Process complete.");
}
}
您也应该释放image
对象。 我建议最后使用try catch进行适当的释放。
image.release();
您是否尝试增加堆空间? 在这里看看。
java.lang.OutOfMemoryError:当应用程序尝试向堆空间区域中添加更多数据但空间不足时,将触发Java堆空间错误。
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