Java BufferedImage Trim trimLockdown(BufferedImage Img, int y1)

Description

This method reads the input image from the input from start pixel height (y1) until it reads the first next row where all pixel are white by height and return that value

License

Apache License

Parameter

Parameter	Description
Img	- input image that will be read
y1	- input start height pixel of image

Return

- returns the value of height when conditions are true

Declaration

private static int trimLockdown(BufferedImage Img, int y1)

Method Source Code

//package com.java2s;
/**//from ww  w.  ja  v a  2s.  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 input image from the input from
     * start pixel height (y1) until it reads the first next row
     * where all pixel are white by height and return that value
     * @param Img - input image that will be read
     * @param y1 - input start height pixel of image
     * @return - returns the value of height when conditions are true
     */
    private static int trimLockdown(BufferedImage Img, int y1) {

        for (int j = y1 + 1; j < Img.getHeight(); j++) {
            int counterWhite = 0;
            for (int i = 0; i < Img.getWidth(); i++) {
                if (Img.getRGB(i, j) == -1) {
                    counterWhite++;
                }
            }
            if (counterWhite == Img.getWidth()) {
                //this is a chek for dots over the letters i and j
                //so they wont be missread as dots
                if (j > (Img.getHeight() / 2)) {
                    return j;
                }
            }
            if (j == Img.getHeight() - 1) {
                return j + 1;
            }
        }
        return 0;
    }
}