Android编程之图片颜色处理方法

0, 0, 0, 1, 0 // 透明度 });

paint.setColorFilter(new ColorMatrixColorFilter(cm)); canvas.drawBitmap(bitmap, matrix, paint);

iv.setImageBitmap(updateBitmap); }

@Override public void onStartTrackingTouch(SeekBar seekBar) {

} @Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

} });

/** * RGB三原色蓝色值的设置

*/ sb3.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

@Override public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress(); cm.set(new float[] { 1, 0, 0, 0, 0,// 红色值

0, 1, 0, 0, 0,// 绿色值 0, 0, progress / 128f, 0, 0,// 蓝色值

0, 0, 0, 1, 0 // 透明度 });

paint.setColorFilter(new ColorMatrixColorFilter(cm)); canvas.drawBitmap(bitmap, matrix, paint);

iv.setImageBitmap(updateBitmap); }

@Override public void onStartTrackingTouch(SeekBar seekBar) {

} @Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

} });

/** * RGB三原色三个值都改变为设置饱和度（亮度）

*/ sb4.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

@Override public void onStopTrackingTouch(SeekBar seekBar) {

int progress = seekBar.getProgress(); cm.set(new float[] { progress / 128f, 0, 0, 0, 0,// 红色值

0, progress / 128f, 0, 0, 0,// 绿色值 0, 0, progress / 128f, 0, 0,// 蓝色值

0, 0, 0, 1, 0 // 透明度 });