Java BufferedImage Trim trimLockup(BufferedImage Img)

Description

This method reads the image pixels until it reads the first black pixel by height and then returns that value

License

Apache License

Parameter

Parameter	Description
Img	- input image that will be read

Return

- returns the value of height when conditions are true

Declaration

private static int trimLockup(BufferedImage Img) 

Method Source Code

//package com.java2s;
/**//  w  ww.j a v a  2 s . co m
 * Copyright 2010 Neuroph Project http://neuroph.sourceforge.net
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.awt.image.BufferedImage;

public class Main {
    /**
     * This method reads the image pixels until it reads the first black pixel
     * by height and then returns that value
     * @param Img - input image that will be read
     * @return - returns the value of height when conditions are true
     */
    private static int trimLockup(BufferedImage Img) {

        for (int j = 0; j < Img.getHeight(); j++) {
            for (int i = 0; i < Img.getWidth(); i++) {
                if (Img.getRGB(i, j) == -16777216) {
                    return j;
                }
            }
        }
        return 0;
    }
}

Related

1. trimImage(BufferedImage imageToTrim)
2. trimImageHorizontally(BufferedImage image, boolean trimFromEnd, int maxToTrim)
3. trimImageVerticallyHelper(BufferedImage image, int maxToTrim)
4. trimImg(BufferedImage img, Color backgroundColor)
5. trimLockdown(BufferedImage Img, int y1)
6. trimmedImage(BufferedImage source)
7. trimWhiteSpace(BufferedImage img)