Java Utililty Methods BufferedImage Subimage

List of utility methods to do BufferedImage Subimage

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Description

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

Method

BufferedImagegetSubImage(BufferedImage image, int x, int y, int w, int h)
get Sub Image 
return image.getSubimage(x, y, w, h);
BufferedImagegetSubimage(BufferedImage image, int x, int y, int w, int h)
get Subimage 
BufferedImage newImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = newImage.createGraphics();
g.drawRenderedImage(image, AffineTransform.getTranslateInstance(-x, -y));
g.dispose();
return newImage;
BufferedImagegetSubImage(BufferedImage image, int x, int y, int width, int height)
A replacement for the standard BufferedImage.getSubimage method. 
int type = (image.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB
        : BufferedImage.TYPE_INT_ARGB;
BufferedImage tmp = new BufferedImage(width, height, type);
Graphics2D g2 = tmp.createGraphics();
g2.drawImage(image.getSubimage(x, y, width, height), 0, 0, null);
g2.dispose();
return tmp;
BufferedImagegetSubimage(BufferedImage image, int x, int y, int width, int height)
get Subimage 
if (width > image.getWidth() - x)
    width = image.getWidth() - x;
if (height > image.getHeight() - y)
    height = image.getHeight() - y;
return image.getSubimage(x, y, width, height);
BufferedImagegetSubimage(BufferedImage image, int x, int y, int width, int height)
get Subimage 
if ((x < 0) || (width < 0) || (x + width > image.getWidth()) || (y < 0) || (height < 0)
        || (y + height > image.getHeight()))
    throw new IllegalArgumentException();
BufferedImage subimage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
int[] rgbBuffer = new int[width * height];
image.getRGB(x, y, width, height, rgbBuffer, 0, width);
subimage.setRGB(0, 0, width, height, rgbBuffer, 0, width);
return subimage;
...
BufferedImagegetSubImage(BufferedImage img, int x, int y, int w, int h)
For some reason, BufferedImage.getSubimage returns something which is incompatible with JAI. 
BufferedImage result = new BufferedImage(w, h, img.getType());
Graphics g = result.getGraphics();
g.drawImage(img, 0, 0, w, h, x, y, w, h, null);
g.dispose();
return result;
BufferedImagegetSubImage(BufferedImage img, Rectangle area)
get Sub Image 
BufferedImage newImg = new BufferedImage(area.width, area.height, BufferedImage.TYPE_INT_ARGB);
int i = 0;
int j = 0;
int x2 = area.x + area.width;
int y2 = area.y + area.height;
for (int x = area.x; x < x2; ++x) {
    for (int y = area.y; y < y2; ++y) {
        newImg.setRGB(i, j++, img.getRGB(x, y));
...
BufferedImagegetSubImage(BufferedImage srcImage, int x, int y, int factorWidth, int factorHeight)
Gets the sub image from original image by specified X,Y coords and Width and Height. 
if (factorWidth < srcImage.getWidth() && factorHeight < srcImage.getHeight()) {
    return srcImage.getSubimage(x, y, factorWidth, factorHeight);
return srcImage;