完整代码如下：
1、主要方法编写类
package chapter4;
import java.awt.image.BufferedImage;
public class BSCAdjustFilter extends AbstractBufferedImageOp {
private double brightness;
private double contrast;
private double saturation;
public double getBrightness() {
return brightness;
}
public void setBrightness(double brightness) {
this.brightness = brightness;
}
public double getSaturation() {
return saturation;
}
public void setSaturation(double saturation) {
this.saturation = saturation;
}
public double getContrast() {
return contrast;
}
public void setContrast(double contrast) {
this.contrast = contrast;
}
public BufferedImage filter(BufferedImage src,BufferedImage dest){
handleParameters();//调整各系数取值范围
int width = src.getWidth();
int height = src.getHeight();
if(dest == null){
dest = creatCompatibleDestImage(src,null);
}
int[] inpixels = new int[width*height];
int[] outpixels = new int[width*height];
getRGB(src,0,0,width,height,inpixels);
int index = 0;
for(int row=0;row
int ta = 0,tr = 0,tg = 0,tb = 0;
for(int col=0;col
index = row*width+col;
ta = (inpixels[index] >> 24) & 0xff;
tr = (inpixels[index] >> 16) & 0xff;
tg = (inpixels[index] >> 8) & 0xff;
tb = inpixels[index] & 0xff;
//RGB转换为HSL色彩空间
double[] hsl = rgb2Hsl(new int[]{tr,tg,tb});
//调整饱和度
hsl[1] = hsl[1]*saturation;
if(hsl[1]<0.0){
hsl[1] = 0.0;
}
if(hsl[1]>255.0){
hsl[1] = 255.0;
}
//调整亮度
hsl[2] = hsl[2]*brightness;
if(hsl[2]<0.0){
hsl[2] = 0.0;
}
if(hsl[2]>255.0){
hsl[2] = 255.0;
}
//HSL转换为rgb空间
int[] rgb = hsl2RGB(hsl);
tr = clamp(rgb[0]);
tg = clamp(rgb[1]);
tb = clamp(rgb[2]);
//调整对比度
double cr = ((tr/255.0d)-0.5d)*contrast;
double cg = ((tg/255.0d)-0.5d)*contrast;
double cb = ((tb/255.0d)-0.5d)*contrast;
//输出RGB值
tr = (int)((cr+0.5f)*255.0f);
tg = (int)((cg+0.5f)*255.0f);
tb = (int)((cb+0.5f)*255.0f);
outpixels[index] = (ta << 24) | (clamp(tr) << 16 ) | (clamp(tg) << 8) | clamp(tb);
}
}
setRGB(dest,0,0,width,height,outpixels);
return dest;
}
public void handleParameters(){
contrast = (1.0+contrast/100.0);
brightness = (1.0 +brightness/100.0);
saturation = (1.0+saturation/100.0);
}
public int clamp(int value){
return value>255 ? 255:((value<0) ? 0:value);
}
}
2、抽象类，集成公有类方法
package chapter4;
import java.awt.image.BufferedImage;
/**
Created by LENOVO on 18-1-29.
*/
public class AbstractBufferedImageOp {
public static final double clo60 = 1.0/60.0;
public static final double clo255 = 1.0/255.0;
public int tr = 0,tg = 0,tb = 0;
public AbstractBufferedImageOp(){}
//读取像素数据
public int[] getRGB(BufferedImage image,int x, int y, int width, int height,int[] pixels){
int type = image.getType();
if(type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB){
return (int[]) image.getRaster().getDataElements(x,y,width,height,pixels);
}else{
return image.getRGB(x,y,width,height,pixels,0,width);
}
}
//写入像素数据
public void setRGB(BufferedImage image,int x, int y, int width, int height, int[] pixels){
int type = image.getType();
if(type == BufferedImage.TYPE_INT_ARGB || type == BufferedImage.TYPE_INT_RGB){
image.getRaster().setDataElements(x,y,width,height,pixels);
}else {
image.setRGB(x,y,width,height,pixels,0,width);
}
}
public BufferedImage creatCompatibleDestImage(BufferedImage src,BufferedImage dest){
return new BufferedImage(src.getWidth(),src.getHeight(),BufferedImage.TYPE_INT_RGB);
}
//RGB色彩空间转换为HSL色彩空间
public double[] rgb2Hsl(int[] hsl){
double min,max,dif,sum;
double f1,f2;
double h,s,l;//HSL色彩空间的三个分量
double hsl1[]={0.0,0.0,0.0};
tr = hsl[0];
tg = hsl[1];
tb = hsl[2];
min = tr;
if(tg
min = tg;
if(tb
min = tb;
max = tr;
f1 = 0.0;
f2 = tg-tb;
if(tg>max){
max = tg;
f1 = 120.0;
f2 = tb-tr;
}
if(tb >max){
max = tb;
f1 = 240.0;
f2 = tr-tg;
}
dif = max-min;
sum = max+min;
l =0.5sum;//亮度仅与图像的最多颜色成分和最少的颜色成分的总量有关。亮度越小，图像越趋于黑色。亮度越高图像越趋于明亮的白色。
if(dif == 0){//最大值与最小值相同，则表示为灰色，那么s定义为0，h未定义通常也写为0
h = 0.0;
s = 0.0;
} else if(l<127.5){//根据亮度l计算饱和度
s = 255.0dif/sum;
} else{
s = 255.0dif/(510.0-sum);
}
h = (f1 +60.0f2)/dif;//计算色调h
if(h<0.0){
h+=360.0;
}
if(h>360.0){
h-=360.0;
}
hsl1[0] = h;
hsl1[1] = s;
hsl1[2] = l;
return hsl1;
}
//HSL色彩空间转换为RGB色彩空间
public int[] hsl2RGB(double[] hsl){
double h,s,l;//HSL色彩空间的三个分量
h = hsl[0];
s = hsl[1];
l = hsl[2];
int[] rgb1={0,0,0};//RGB数组初始化
double v1,v2,v3,h1;
//HSL 转换为 RGB
if(s == 0){//表示灰色，R，G，B定义为0
tr = (int)l;
tg = (int)l;
tb = (int)l;
}else{
if(l<127.5){
v2 = clo255 l(255+s);
}else{
v2 = l+s-clo255sl;
}
v1 = 2*l-v2;
v3 = v2-v1;
h1 = h+120.0;
if(h1>=360.0)
h1 -=360.0;
//计算tr
if(h1<60){
tr = (int)(v1 +v3 h1 clo60);
}else if(h1<180.0){
tr = (int)v2;
}else if(h1<240.0){
tr = (int)(v1+v3(4-h1clo60));
}else{
tr = (int)v1;
}
//计算tg
h1 = h;
if(h1<60.0){
tg = (int)(v1 +v3 h1 clo60);
}else if(h1 <180.0){
tg = (int)v2;
}else if(h1<240.0){
tg = (int)(v1+v3(4-h1clo60));
}else {
tg = (int)v1;
}
//计算tb
h1 = h-120.0;
if(h1 <0.0){
h1 += 360.0;
}
if(h1<60.0){
tb = (int)(v1 +v3 h1 clo60);
}else if(h1<180.0){
tb = (int)v2;
}else if(h1<240.0){
tb = (int)(v1+v3(4-h1clo60));
}else{
tb = (int)v1;
}
}
rgb1[0] = tr;
rgb1[1] = tg;
rgb1[2] = tb;
return rgb1;
}
}
3、图像面板类
package chapter4;
import javax.swing.;
import java.awt.;
import java.awt.image.BufferedImage;
/**
Created by LENOVO on 18-1-29.
*/
public class ImageJPanel extends JPanel {
private static final long serialVersionUID = 1L;
private BufferedImage sourceImage;
private BufferedImage destImage;
public ImageJPanel(){}
public BufferedImage getSourceImage() {
return sourceImage;
}
public void setSourceImage(BufferedImage sourceImage) {
this.sourceImage = sourceImage;
}
public BufferedImage getDestImage() {
return destImage;
}
public void setDestImage(BufferedImage destImage) {
this.destImage = destImage;
}
public void process(){
//SepiaToneFilter filter = new SepiaToneFilter();
//SaturationFilter filter = new SaturationFilter();
//BrightFilter filter = new BrightFilter();
//ContrastFilter filter = new ContrastFilter();
// destImage = filter.filter(sourceImage,null);
//BrightContrastSatUI bcsUI = new BrightContrastSatUI(this);
}
public void process(double bcs[]){
double s = 0.0,b = 0.0,c = 0.0;
BSCAdjustFilter filter = new BSCAdjustFilter();
filter.setSaturation(bcs[0]);
filter.setBrightness(bcs[1]);
filter.setContrast(bcs[2]);
destImage = filter.filter(sourceImage,null);
}
public void paintComponent(Graphics g){
Graphics2D g2d = (Graphics2D) g.create();
g2d.clearRect(0,0,this.getWidth(),this.getHeight());
if(sourceImage != null){
g2d.drawImage(sourceImage,0,0,sourceImage.getWidth(),sourceImage.getHeight(),null);
if(destImage != null){
g2d.drawImage(destImage,sourceImage.getWidth()+10,0,destImage.getWidth(),destImage.getHeight(),null);
}
}
}
}
4、滑动窗口面板类
package chapter4;
import javax.swing.;
import java.awt.;
import java.awt.event.ActionListener;
/**
Created by LENOVO on 18-1-29.
*/
public class BrightContrastSatUI extends JDialog {
private static final long serialVersionUID = 1L;
private JButton okBtn;
private JLabel bLabel;
private JLabel cLabel;
private JLabel sLabel;
private JSlider bSlider;
private JSlider cSlider;
private JSlider sSlider;
public BrightContrastSatUI(JFrame parent){
super(parent,"调整图像亮度、对比度、饱和度");
initComponent();
}
public void initComponent(){
okBtn = new JButton("确定");
bLabel = new JLabel("亮度");
cLabel = new JLabel("对比度");
sLabel = new JLabel("饱和度");
bSlider = new JSlider(JSlider.HORIZONTAL,-100,100,0);//滑块最大值最小值与初始值
bSlider.setMajorTickSpacing(40);//主刻度标记之间间隔
bSlider.setMinorTickSpacing(10);//次刻度标记之间间隔
bSlider.setPaintLabels(true);//确定是否绘制标签
bSlider.setPaintTicks(true);//确定是否在滑块上绘制刻度标记
bSlider.setPaintTrack(true);//确定是否在滑道上绘制滑道
cSlider = new JSlider(JSlider.HORIZONTAL,-100,100,0);
cSlider.setMajorTickSpacing(40);
cSlider.setMinorTickSpacing(10);
cSlider.setPaintTicks(true);
cSlider.setPaintLabels(true);
cSlider.setPaintTrack(true);
sSlider = new JSlider(JSlider.HORIZONTAL,-100,100,0);
sSlider.setMajorTickSpacing(40);
sSlider.setMinorTickSpacing(10);
sSlider.setPaintTicks(true);
sSlider.setPaintLabels(true);
sSlider.setPaintTrack(true);
this.getContentPane().setLayout(new BorderLayout());
JPanel bPanel = new JPanel();
bPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
bPanel.add(bLabel);
bPanel.add(bSlider);
JPanel cPanel = new JPanel();
cPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
cPanel.add(cLabel);
cPanel.add(cSlider);
JPanel sPanel = new JPanel();
sPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
sPanel.add(sLabel);
sPanel.add(sSlider);
JPanel contentPanel = new JPanel();
contentPanel.setLayout(new GridLayout(3,1));
contentPanel.add(bPanel);
contentPanel.add(cPanel);
contentPanel.add(sPanel);
JPanel btnPanel = new JPanel();
btnPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
btnPanel.add(okBtn);
this.getContentPane().add(contentPanel,BorderLayout.CENTER);
this.getContentPane().add(btnPanel,BorderLayout.SOUTH);
this.pack();
}
public static void centre(Window w){//调整窗口位置
Dimension us = w.getSize();
Dimension them = Toolkit.getDefaultToolkit().getScreenSize();
int newX = (them.width-us.width)/2;
int newY = (them.height-us.height)/2;
w.setLocation(newX,newY);
}
public int getBright(){
return bSlider.getValue();//返回滑块的当前亮度值
}
public int getContrast(){
return cSlider.getValue();//返回滑块当前对比度值
}
public int getSat(){
return sSlider.getValue();//返回滑块当前饱和度值
}
public void showUI(){
centre(this);
this.setVisible(true);
}
public void setActionListener(ActionListener l){
this.okBtn.addActionListener(l);
}
}
5、测试类
package chapter4;
import javax.imageio.ImageIO;
import javax.sound.midi.SysexMessage;
import javax.swing.;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.awt.;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
/**
Created by LENOVO on 18-1-29.
*/
public class UI_MainUI extends JFrame implements ActionListener{
private static final long serialVersionUID = 1L;
private static final String IMG_CMD = "选择图像...";
private static final String PROCESS_CMD = "处理";
private JButton imgBtn;
private JButton processBtn;
private ImageJPanel imageJPanel;
private BufferedImage srcImage;
public UI_MainUI(){
setTitle("JFrame UI —演示");
imgBtn = new JButton(IMG_CMD);
processBtn = new JButton(PROCESS_CMD);
JPanel btnJpanel = new JPanel();
btnJpanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
btnJpanel.add(imgBtn);
btnJpanel.add(processBtn);
imageJPanel = new ImageJPanel();
getContentPane().setLayout(new BorderLayout());
getContentPane().add(imageJPanel,BorderLayout.CENTER);
getContentPane().add(btnJpanel,BorderLayout.SOUTH);
setupActionListener();
}
public void setupActionListener(){
imgBtn.addActionListener(this);
processBtn.addActionListener(this);
}
@Override
public void actionPerformed(ActionEvent e) {
if(SwingUtilities.isEventDispatchThread()){
System.out.println("Event Dispatch Thred!!");
}
if(srcImage == null){
try {
JOptionPane.showMessageDialog(this,"请先选择图像源文件");
JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(null);
setFileTypeFilter(chooser);
File f = chooser.getSelectedFile();
if(f != null){
srcImage = ImageIO.read(f);
imageJPanel.setSourceImage(srcImage);//图像面板添加图像
imageJPanel.repaint();
}
} catch (IOException e1) {
e1.printStackTrace();
}
return ;
}
if (IMG_CMD.equals(e.getActionCommand())){
if(srcImage == null){
try {
JOptionPane.showMessageDialog(this,"请先选择图像源文件");
JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(null);
File f = chooser.getSelectedFile();
if(f != null){
srcImage = ImageIO.read(f);
imageJPanel.setSourceImage(srcImage);//图像面板添加图像
imageJPanel.repaint();
}
} catch (IOException e1) {
e1.printStackTrace();
}
}
}else if(PROCESS_CMD.equals(e.getActionCommand())){
//如果点击“处理”按钮，则跳出调整图像饱和度，对比度，亮度窗口
final BrightContrastSatUI bcsUI = new BrightContrastSatUI(this);//调整图像饱和度，对比度，亮度窗口
//点击“确定”按钮，触发事件
bcsUI.setActionListener(new ActionListener() {//点击确定按钮后执行
@Override
public void actionPerformed(ActionEvent e) {
bcsUI.setVisible(true);
double s = bcsUI.getSat();
double b = bcsUI.getBright();
double c = bcsUI.getContrast();
bcsUI.dispose();
imageJPanel.process(new double[]{s,b,c});
imageJPanel.repaint();
//System.out.print("das");
}
});
bcsUI.showUI();
}
}
public void setFileTypeFilter(JFileChooser chooser){
FileNameExtensionFilter filter = new FileNameExtensionFilter("JPG & PNG Images","jpg","png");
chooser.setFileFilter(filter);
}
public void openView(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setPreferredSize(new Dimension(800,600));
pack();
setVisible(true);
}
public static void main(String args[]){
UI_MainUI ui = new UI_MainUI();
ui.openView();
}
}
