Java Utililty Methods Image

List of utility methods to do Image

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Description

The list of methods to do Image are organized into topic(s).

Method

ImagecreateTiledImage(Image img, int width, int height)
Crea un 'tiled image' con un objeto image con una anchura y altura 
Image image = null;
BufferedImage bimg = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
int imageWidth = img.getWidth(null);
int imageHeight = img.getHeight(null);
int numX = (width / imageWidth) + 2;
int numY = (height / imageHeight) + 2;
Graphics2D bGr = bimg.createGraphics();
for (int y = 0; y < numY; y++) {
...
Imagecrop(Image source, int x1, int y1, int x2, int y2)
crop 
BufferedImage bi = toBufferedImage(source);
BufferedImage img = bi.getSubimage(x1, y1, x2, y2);
return img;
voiddisplayImage(Image image)
display Image 
ImageIcon icon = new ImageIcon(image);
JFrame frame = new JFrame();
frame.setLayout(new FlowLayout());
frame.setSize(image.getWidth(null) + 25, image.getHeight(null) + 50);
JLabel lbl = new JLabel();
lbl.setIcon(icon);
frame.add(lbl);
frame.setVisible(true);
...
voiddisplayImage(Image img)
display Image 
JFrame f = new JFrame("DEBUG IMG");
JLabel label = new JLabel(new ImageIcon(img));
label.setBorder(BorderFactory.createLineBorder(Color.RED));
f.setLayout(new BorderLayout());
f.add(label, BorderLayout.WEST);
f.pack();
f.setVisible(true);
f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
...
JDialogdisplayImage(Image img, String mesg, int locx, int locy, int sizex, int sizey)
display Image 
JDialog imgBox = new JDialog(new java.awt.Frame(), mesg, false);
JPanel imgPanel = new JPanel(new BorderLayout());
imgBox.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
imgBox.setLocation(locx, locy);
imgBox.setSize(sizex, sizey);
imgBox.setContentPane(imgPanel);
ImageIcon imgIcon = new ImageIcon(img, "");
JLabel imgLabel = new JLabel(imgIcon);
...
ListdivideImage(Object obj, int rows, int cols)
divide Image 
BufferedImage bi;
if (obj instanceof Image) {
    bi = toBufferedImage((Image) obj);
} else if (obj instanceof ImageIcon) {
    bi = toBufferedImage(((ImageIcon) obj).getImage());
} else {
    bi = (BufferedImage) obj;
int altoBi = bi.getHeight() / rows;
int anchoBi = bi.getWidth() / cols;
List<BufferedImage> imagenes = new ArrayList<>();
BufferedImage subImagen;
for (int f = 0; f < rows; f++) {
    for (int c = 0; c < cols; c++) {
        subImagen = bi.getSubimage(c * anchoBi, f * altoBi, anchoBi, altoBi);
        imagenes.add(subImagen);
return imagenes;
ImageensureImageLoaded(Image img)
Ensures that the image is properly loaded before returning 
if (img instanceof BufferedImage) {
    return img;
if (img.getWidth(null) > -1) {
    return img;
if (IMAGE_LOADER == null) {
    IMAGE_LOADER = new ImageIcon();
...
ImagefindImagefromClasspath(Class relToThisClass, String relImageName)
find Imagefrom Classpath 
Image image = null;
String name = relToThisClass.getName();
String path = name.substring(0, name.lastIndexOf('.'));
path = path.replace('.', '/');
path = path + relImageName.substring(1); 
String classpath = System.getProperty(CLASSPATH);
StringTokenizer st = new StringTokenizer(classpath, ";:");
while (st.hasMoreTokens()) {
...
JPanelgenerateImageVisualizationPanel(String path, int width, int height, int scaling)
generate Image Visualization Panel 
JPanel panel = new JPanel(new BorderLayout());
try {
    Image image = ImageIO.read(new File(path));
    InputStream is = new BufferedInputStream(new FileInputStream(path));
    image = ImageIO.read(is);
    ImageIcon icon = new ImageIcon(path);
    icon.setImage(image);
    JLabel label = new JLabel(icon);
...
ImagegetChatLogoImage(int width, int height)
get Chat Logo Image 
return getChatLogoImage().getScaledInstance(width, height, Image.SCALE_AREA_AVERAGING);