Bufferedimage resize

Question

I am trying to resized a bufferedimage. I am able to store it and show up on a jframe no problems but I can\'t seem to resize it. Any tips on how I can change this to make i

Answer 1

This is a shortened version of what is actually happening in imgscalr, if you just want to use the "balanced" smoothing:

/**
 * Takes a BufferedImage and resizes it according to the provided targetSize
 *
 * @param src the source BufferedImage
 * @param targetSize maximum height (if portrait) or width (if landscape)
 * @return a resized version of the provided BufferedImage
 */
private BufferedImage resize(BufferedImage src, int targetSize) {
    if (targetSize <= 0) {
        return src; //this can't be resized
    }
    int targetWidth = targetSize;
    int targetHeight = targetSize;
    float ratio = ((float) src.getHeight() / (float) src.getWidth());
    if (ratio <= 1) { //square or landscape-oriented image
        targetHeight = (int) Math.ceil((float) targetWidth * ratio);
    } else { //portrait image
        targetWidth = Math.round((float) targetHeight / ratio);
    }
    BufferedImage bi = new BufferedImage(targetWidth, targetHeight, src.getTransparency() == Transparency.OPAQUE ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = bi.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); //produces a balanced resizing (fast and decent quality)
    g2d.drawImage(src, 0, 0, targetWidth, targetHeight, null);
    g2d.dispose();
    return bi;
}