Java Utililty Methods Image Resize

double[] getResize(Image image, Dimension windowSize)
get Resize

double w = image.getWidth(null);
double h = image.getHeight(null);
double f = 1;
double fw = w / windowSize.getWidth();
double fh = h / windowSize.getHeight();
if (fw > 1 || fh > 1) {
 if (fh > fw) {
 w /= fh;
...

ImageIcon getResizedImage(Image img, int iNewWidth, int iNewHeight)
Image resizes

if (img == null) {
 return null;
ImageIcon iiNew = new ImageIcon();
Image scaleImg = img.getScaledInstance(iNewWidth, iNewHeight, Image.SCALE_AREA_AVERAGING);
iiNew.setImage(scaleImg);
return iiNew;

Image getResizedImage(Image original, final Integer w, final Integer h, boolean keepAspectRatio)
get Resized Image

if (original == null)
 throw new IllegalArgumentException("Original image cannot be null.");
if (w == null && h == null)
 return original;
final int currentW = original.getWidth(null);
final int currentH = original.getHeight(null);
float ratio;
int converted;
...

BufferedImage getResizedImage(Image originalImage, Dimension newSize)
Get a resized image.

BufferedImage bImage = new BufferedImage(newSize.width, newSize.height, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = bImage.createGraphics();
g2d.drawImage(originalImage, null, null);
g2d.dispose();
return bImage;

Image getResizedImage(Image originalImage, int newWidth, int newHeight, int imageType)
Scales the specified image to the desired dimensions by specified type and the smooth scaling method

return getResizedImage(originalImage, newWidth, newHeight, imageType, Image.SCALE_SMOOTH);

Image getResizedImage(String path, int height, int width)
get Resized Image

Image img = new ImageIcon(path).getImage();
return img.getScaledInstance(height, width, 0);

Image resize(Image img, int newWidth, float quality)
resize

if (quality < 0 || quality > 1) {
 throw new IllegalArgumentException("Quality has to be between 0 and 1");
ImageIcon ii = new ImageIcon(img);
Image i = ii.getImage();
Image resizedImage = null;
int iWidth = i.getWidth(null);
int iHeight = i.getHeight(null);
...

void resize(String srcImageFile, String result, int newWidth, float quality)
resize

File originalFile = new File(srcImageFile);
if (quality > 1) {
 throw new IllegalArgumentException("Quality has to be between 0 and 1");
ImageIcon ii = new ImageIcon(originalFile.getCanonicalPath());
Image i = ii.getImage();
Image resizedImage = null;
int iWidth = i.getWidth(null);
...

ImageIcon resizeImage(ImageIcon tmpIcon)
resize Image

if (tmpIcon != null) {
 if (tmpIcon.getIconWidth() > 90) {
 tmpIcon = new ImageIcon(tmpIcon.getImage().getScaledInstance(100, -1, Image.SCALE_DEFAULT));
return tmpIcon;

ImageIcon resizeImage(String imagePath, int width, int height)
Method to resize and visualize the user selected image within the image label

ImageIcon ic = new ImageIcon(imagePath);
Image img = ic.getImage();
Image newImage = img.getScaledInstance(width, height, Image.SCALE_SMOOTH);
return new ImageIcon(newImage);