图像亮度滑块Java [英] image brightness slider Java
本文介绍了图像亮度滑块Java的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有:
BufferedImage image;
//few lines of code
public void stateChanged(ChangeEvent e)
{
for (int i = 0; i < image.getWidth(); i++) {
for (int j = 0; j < image.getHeight(); j++)
{
Color color = new Color(image.getRGB(i, j));
int r, g, b;
val = sliderBrightness.getValue();
r = color.getRed() + val;
g = color.getGreen() + val;
b = color.getBlue() + val;
}
}
我还不知道如何解决此问题,我该如何修改Image对JSlider亮度的反应?
I haven't got any idea how to solve this problem, what should i modify that Image will react on JSlider brightness?
推荐答案
public void stateChanged(ChangeEvent e)
{
for (int x = 0; x < image.getWidth(); x++) {
for (int y = 0; y < image.getHeight(); y++)
{
Color color = new Color(image.getRGB(x, y));
int r, g, b;
val = sliderBrightness.getValue();
r = checkColorRange(color.getRed() + val);
g = checkColorRange(color.getGreen() + val);
b = checkColorRange(color.getBlue() + val);
color = new Color(r, g, b);
image.setRGB(x, y, color.getRGB());
border.setIcon(new ImageIcon(image.getScaledInstance(350, 350, Image.SCALE_SMOOTH)));
border.repaint();
}
}
}
public int checkColorRange(int newColor){
if(newColor > 255){
newColor = 255;
} else if (newColor < 0) {
newColor = 0;
}
return newColor;
}
为清楚起见,还应使用x
和y
,而不是i
和j
.
Also you should use x
and y
, instead of i
and j
, for clarity.
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