Java BufferedImage Resize getResizeFactor(BufferedImage source, int maxWidth, int maxHeight)

Description

get Resize Factor

License

Open Source License

Declaration

public static float getResizeFactor(BufferedImage source, int maxWidth, int maxHeight) 

Method Source Code

//package com.java2s;
/*//from www. j a  v  a2s .com
 Bandika  - A Java based modular Content Management System
 Copyright (C) 2009-2018 Michael Roennau
    
 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 You should have received a copy of the GNU General Public License along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

import java.awt.image.BufferedImage;

public class Main {
    public static float getResizeFactor(BufferedImage source, int maxWidth, int maxHeight) {
        if (source == null) {
            return 1;
        }
        float wfactor = maxWidth == 0 ? 0 : ((float) maxWidth) / source.getWidth();
        float hfactor = maxHeight == 0 ? 0 : ((float) maxHeight) / source.getHeight();
        float factor = 1;
        if (wfactor != 0 && hfactor != 0) {
            factor = Math.min(1, Math.min(wfactor, hfactor));
        }
        return factor;
    }
}

Related

1. downsizeImage(Image imgSource, int w, int h)
2. fitImage(JLabel label, BufferedImage image)
3. getResizedImage(BufferedImage image)
4. imageResize(BufferedImage image, int width, int height)
5. linearResizeImage(BufferedImage origin, int width, int height)
6. resizeToContainer(BufferedImage imagen, int wCont, int hCont)