Example usage for javax.imageio ImageIO read

Introduction

In this page you can find the example usage for javax.imageio ImageIO read.

Prototype

public static BufferedImage read(ImageInputStream stream) throws IOException

Source Link

Document

Returns a BufferedImage as the result of decoding a supplied ImageInputStream with an ImageReader chosen automatically from among those currently registered.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage image = ImageIO.read(Main.class.getResource("S.jpg"));
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage image = ImageIO.read(new URL("http://www.java2s.com/style/download.png"));
    System.out.println(image == null);
    int width = image.getWidth();
    int height = image.getHeight();
    System.out.println(width + "x" + height);
    for (int row = 0; row < height; row++) {
        for (int col = 0; col < width; col++) {
            System.out.printf("%04X ", image.getRGB(col, row));
        }// w ww .  j av  a 2 s  . c  o m
        System.out.println();
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage img = ImageIO.read(new File("c:/Java_Dev/a.jpg"));
    int height = img.getHeight();
    int width = img.getWidth();

    System.out.println(height + "  " + width + " " + img.getRGB(30, 30));

    for (int h = 1; h < height; h++) {
        for (int w = 1; w < width; w++) {
            int rgb = img.getRGB(w, h);
            int red = (rgb >> 16) & 0x000000FF;
            int green = (rgb >> 8) & 0x000000FF;
            int blue = (rgb) & 0x000000FF;

            if (red == 0 && green == 0 && blue == 0) {
                System.out.println("Black");
            }//from ww  w  .  j ava2  s. c o m
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage img = colorImage(ImageIO.read(new File("NWvnS.png")));
    ImageIO.write(img, "png", new File("Test.png"));
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    BufferedImage img1 = ImageIO.read(new File("c:/Java_Dev/1.png"));
    BufferedImage img2 = ImageIO.read(new File("c:/Java_Dev/2.png"));
    BufferedImage joinedImg = joinBufferedImage(img1, img2);
    ImageIO.write(joinedImg, "png", new File("c:/Java_Dev/joined.png"));
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage inputFile = ImageIO.read(new URL("http://www.java2s.com/style/download.png"));

    for (int x = 0; x < inputFile.getWidth(); x++) {
        for (int y = 0; y < inputFile.getHeight(); y++) {
            int rgba = inputFile.getRGB(x, y);
            Color col = new Color(rgba, true);
            col = new Color(255 - col.getRed(), 255 - col.getGreen(), 255 - col.getBlue());
            inputFile.setRGB(x, y, col.getRGB());
        }/*from   w w w  . j  a va  2s  .  c o m*/
    }

    File outputFile = new File("invert.png");
    ImageIO.write(inputFile, "png", outputFile);

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage bsrc = ImageIO.read(new File("a.jpg"));
    BufferedImage bdest = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = bdest.createGraphics();
    AffineTransform at = AffineTransform.getScaleInstance(2, 2);
    g.drawRenderedImage(bsrc, at);/*from   w ww . j av  a 2  s  . c  o  m*/
    ImageIO.write(bdest, "JPG", new File("b.jpg"));
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedImage bufferedImage = ImageIO.read(new File("a.jpg"));
    BufferedImage destinationBufferedImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = destinationBufferedImage.createGraphics();
    AffineTransform at = AffineTransform.getScaleInstance(2, 2);
    g.drawRenderedImage(bufferedImage, at);
    ImageIO.write(destinationBufferedImage, "JPG", new File("b.jpg"));
}

From source file:Main.java

public static void main(String[] args) throws java.io.IOException {
    BufferedImage img = ImageIO.read(new File("input-image.png"));

    BufferedImage rotated = new AffineTransformOp(
            AffineTransform.getQuadrantRotateInstance(3, img.getWidth() / 2, img.getHeight() / 2),
            AffineTransformOp.TYPE_BILINEAR).filter(img, null);

    ImageIO.write(rotated, "PNG", new File("output-image.png"));
}

From source file:Main.java

public static void main(String args[]) throws IOException {
    File file = new File("your_file.jpg");
    BufferedImage image = ImageIO.read(file);

    int x = 10;/*from  w  w  w  . j av  a 2 s . c o  m*/
    int y = 10;

    int clr = image.getRGB(x, y);
    int red = (clr & 0x00ff0000) >> 16;
    int green = (clr & 0x0000ff00) >> 8;
    int blue = clr & 0x000000ff;
    System.out.println("Red Color value = " + red);
    System.out.println("Green Color value = " + green);
    System.out.println("Blue Color value = " + blue);
}