java一个图片处理

UI请假，没有PS，需要修改图片中所有绿色为蓝色。于是写了一个代码来处理

MyImageFactory .java

package com.can.lib;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

public class MyImageFactory {
    public interface Callback {
        default int colorCallback(int x, int y, int a, int r, int g, int b) {
            return 1;
        }

        default int colorCallback(int a, int r, int g, int b) {
            return getColor(a, r, g, b);
        }

        default int colorCallback(int x, int y, int width, int height, int a, int r, int g, int b) {
            return 1;
        }
    }

    public static int getColor(int a, int r, int g, int b) {
        return a << 24 | r << 16 | g << 8 | b;
    }

    public static void createNewImage(File originFile, File targeFile, Callback callback) {
        if (!originFile.exists()) {
            System.out.println("originFile not exits " + originFile.getAbsolutePath());
            return;
        }
        try {
            BufferedImage originImage = ImageIO.read(originFile);
            int width = originImage.getWidth();
            int height = originImage.getHeight();
            BufferedImage targeImage = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
            int color, a, r, g, b;
            for (int x = 0; x < width; x++) {
                for (int y = 0; y < height; y++) {
                    color = originImage.getRGB(x, y);
                    a = color >> 24 & 0xff;
                    r = color >> 16 & 0xff;
                    g = color >> 8 & 0xff;
                    b = color & 0xff;
                    int newColor = callback.colorCallback(x, y, a, r, g, b);
                    if (newColor == 1) {
                        newColor = callback.colorCallback(x, y, width, height, a, r, g, b);
                    }
                    if (newColor == 1) {
                        newColor = callback.colorCallback(a, r, g, b);
                    }
                    targeImage.setRGB(x, y, newColor);
                }
            }
            ImageIO.write(targeImage, "png", targeFile);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

使用：
ARGB中GB互相替换，绿色显示蓝色

        File originFile = new File("lib", "test.png");
        MyImageFactory.createNewImage(originFile, new File("lib", "test1.png"), new MyImageFactory.Callback() {
            @Override
            public int colorCallback(int a, int r, int g, int b) {
                int color = MyImageFactory.getColor(a, r, g, b);
                if (color != 0xFFFFFFFF) {
                    r = 255 - r;
                    g = 255 - g;
                    b = 255 - b;
                }
                return MyImageFactory.getColor(a, r, g, b);
            }
        });