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Tools.java
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Tools.java
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package org.genericsystem.cv;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.stream.Stream;
import javax.imageio.ImageIO;
import org.opencv.core.Mat;
import org.opencv.core.MatOfByte;
import org.opencv.imgcodecs.Imgcodecs;
import javafx.embed.swing.SwingFXUtils;
import javafx.scene.image.Image;
public class Tools {
public static Stream<Img> classImgsStream(String repository) {
return Arrays.stream(new File(repository).listFiles()).filter(img -> img.getName().endsWith(".png")).map(img -> new Img(img.getPath()));
}
public static Img firstImg(String repository) {
return classImgsStream(repository).findFirst().get();
}
public static Stream<Img> classImgsStream(String repository, String... imagePaths) {
return Arrays.stream(new File(repository).listFiles()).filter(img -> img.getName().endsWith(".png") && Arrays.asList(imagePaths).contains(img.getName())).map(img -> new Img(img.getPath()));
}
public static BufferedImage mat2bufferedImage(Mat image) {
MatOfByte bytemat = new MatOfByte();
Imgcodecs.imencode(".png", image, bytemat);
try {
return ImageIO.read(new ByteArrayInputStream(bytemat.toArray()));
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
public static Image mat2jfxImage(Mat frame) {
return SwingFXUtils.toFXImage(Tools.mat2bufferedImage(frame), null);
}
}