Resizing an image in swing

Question

I have snippet of code that I am using for the purpose of resizing an image to a curtain size (I want to change the resolution to something like 200 dpi). Basically the reas

Answer 1

Try this CODE to resize image :

public static Image scaleImage(Image original, int newWidth, int newHeight) {
    //do nothing if new and old resolutions are same
    if (original.getWidth() == newWidth && original.getHeight() == newHeight) {
        return original;
    }

    int[] rawInput = new int[original.getHeight() * original.getWidth()];
    original.getRGB(rawInput, 0, original.getWidth(), 0, 0, original.getWidth(), original.getHeight());
    int[] rawOutput = new int[newWidth * newHeight];
    // YD compensates for the x loop by subtracting the width back out
    int YD = (original.getHeight() / newHeight) * original.getWidth() - original.getWidth();
    int YR = original.getHeight() % newHeight;
    int XD = original.getWidth() / newWidth;
    int XR = original.getWidth() % newWidth;
    int outOffset = 0;
    int inOffset = 0;
    for (int y = newHeight, YE = 0; y > 0; y--) {
        for (int x = newWidth, XE = 0; x > 0; x--) {
            rawOutput[outOffset++] = rawInput[inOffset];
            inOffset += XD;
            XE += XR;
            if (XE >= newWidth) {
                XE -= newWidth;
                inOffset++;
            }
        }
        inOffset += YD;
        YE += YR;
        if (YE >= newHeight) {
            YE -= newHeight;
            inOffset += original.getWidth();
        }
    }
    return Image.createRGBImage(rawOutput, newWidth, newHeight, false);
}