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I'm trying to generate byte array from image for that i tried two different method but i'm not understanding which one is better because both method require so much time

so if any alternative available please suggest

Java code :

    File newfile = new File(path);
    BufferedImage originalImage = ImageIO.read(newfile);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(originalImage, "png", baos);
    imageInByte = baos.toByteArray();

Opencv method which i tried :

Mat originalImage=  Highgui.imread(path);
byte[] imageInByte = new byte[(int) (originalImage.total() * originalImage.channels())];
originalImage.get(0, 0, imageInByte);
System.out.println("CONVERTED TO BYTE");

I'm trying to generate byte array from image for that i tried two different method but i'm not understanding which one is better because both method require so much time

so if any alternative available please suggest

Java code :

    File newfile = new File(path);
    BufferedImage originalImage = ImageIO.read(newfile);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(originalImage, "png", baos);
    imageInByte = baos.toByteArray();

Opencv method which i tried :

Mat originalImage=  Highgui.imread(path);
byte[] imageInByte = new byte[(int) (originalImage.total() * originalImage.channels())];
originalImage.get(0, 0, imageInByte);
System.out.println("CONVERTED TO BYTE");

I'm trying to generate byte array from image for that i tried two different method but i'm not understanding which one is better because both method require so much time

so if any alternative available please suggest

Java code :

    File newfile = new File(path);
    BufferedImage originalImage = ImageIO.read(newfile);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(originalImage, "png", baos);
    imageInByte = baos.toByteArray();

Opencv method which i tried :

Mat originalImage=  Highgui.imread(path);
byte[] imageInByte = new byte[(int) (originalImage.total() * originalImage.channels())];
originalImage.get(0, 0, imageInByte);
System.out.println("CONVERTED TO BYTE");