Java BufferedImage Size Get getSize(int width, int height, Image image)

Description

get Size

License

Open Source License

Declaration

public static int[] getSize(int width, int height, Image image) 

Method Source Code

//package com.java2s;
import java.awt.Image;

public class Main {

    public static int[] getSize(int width, int height, Image image) {
        int targetWidth = image.getWidth(null);
        int targetHeight = image.getHeight(null);
        double scaling = getScaling(targetWidth, targetHeight, width, height);
        long standardWidth = Math.round(targetWidth * scaling);
        long standardHeight = Math.round(targetHeight * scaling);
        return new int[] { Integer.parseInt(Long.toString(standardWidth)),
                Integer.parseInt(String.valueOf(standardHeight)) };
    }//from   w w  w . j a v a 2 s  .  com

    public static int[] getSize(float scale, Image image) {
        int targetWidth = image.getWidth(null);
        int targetHeight = image.getHeight(null);
        long standardWidth = Math.round(targetWidth * scale);
        long standardHeight = Math.round(targetHeight * scale);
        return new int[] { Integer.parseInt(Long.toString(standardWidth)),
                Integer.parseInt(String.valueOf(standardHeight)) };
    }

    public static int[] getSize(int width, Image image) {
        int targetWidth = image.getWidth(null);
        int targetHeight = image.getHeight(null);
        long height = Math.round((targetHeight * width) / (targetWidth * 1.00f));
        return new int[] { width, Integer.parseInt(String.valueOf(height)) };
    }

    public static double getScaling(double targetWidth, double targetHeight, double standardWidth,
            double standardHeight) {
        double widthScaling = 0d;
        double heightScaling = 0d;
        if (targetWidth > standardWidth) {
            widthScaling = standardWidth / (targetWidth * 1.00d);
        } else {
            widthScaling = 1d;
        }
        if (targetHeight > standardHeight) {
            heightScaling = standardHeight / (targetHeight * 1.00d);
        } else {
            heightScaling = 1d;
        }
        return Math.min(widthScaling, heightScaling);
    }
}

Related

1. getDimension(BufferedImage img)
2. getDimension(File f)
3. getDimension(final Image anImage, final ImageObserver obs)
4. getDimensions(byte[] image)
5. getSize(BufferedImage image)
6. getSizeByHeight(int height, Image image)
7. getSizedImage(final URL url, final Dimension size)