android 底片，浮雕，老照片效果

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package com.example.and6;import android.app.Activity;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.Bitmap.Config;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.ColorMatrix;import android.graphics.ColorMatrixColorFilter;import android.graphics.Paint;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.support.v4.view.ScrollingView;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.EditText;import android.widget.ImageView;import android.widget.ProgressBar;import android.widget.ScrollView;import android.widget.SeekBar;import android.widget.SeekBar.OnSeekBarChangeListener;public class MainActivity3 extends Activity implements OnClickListener {Bitmap bitmap;ImageView iv;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_main5);iv = (ImageView) findViewById(R.id.iv);bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic);findViewById(R.id.dipian).setOnClickListener(this);findViewById(R.id.old).setOnClickListener(this);findViewById(R.id.fudiao).setOnClickListener(this);}@Overridepublic void onClick(View v) {// TODO Auto-generated method stubint w = bitmap.getWidth();int h = bitmap.getHeight();int color;int r, g, b, a;Bitmap bmp = Bitmap.createBitmap(w, h, Config.ARGB_8888);int[] oldPixs = new int[w * h];int[] newPixs = new int[w * h];bitmap.getPixels(oldPixs, 0, w, 0, 0, w, h);for (int i = 0; i < newPixs.length; i++) {color = oldPixs[i];r = Color.red(color);g = Color.green(color);b = Color.blue(color);a = Color.alpha(color);switch (v.getId()) {case R.id.dipian:r=255-r;g=255-g;b=255-b;if (r>255) {r=255;}else if (r<0) {r=0;}if (g>255) {g=255;}else if (g<0) {g=0;}if (b>255) {b=255;}else if (b<0) {b=0;}break;case R.id.old:r=(int) (0.393*r+0.769*g+0.189*b);g=(int) (0.349*r+0.686*g+0.168*b);b=(int) (0.272*r+0.534*g+0.131*b);break;case R.id.fudiao:/* * 浮雕算法 *  * 若存在ABC三个像素点，要求B点对应的浮雕效果： * B.r=C.r-B.r+127 * B.g=C.g-B.g+127 * B.b=C.b-B.b+127 */if (i<newPixs.length-1) {int C=oldPixs[i+1];r=Color.red(C)-r+127;g=Color.green(C)-g+127;b=Color.blue(C)-b+127;if (r>255) {r=255;}else if (r<0) {r=0;}if (g>255) {g=255;}else if (g<0) {g=0;}if (b>255) {b=255;}else if (b<0) {b=0;}}break;default:break;}newPixs[i]=Color.argb(a, r, g, b);}bmp.setPixels(newPixs, 0, w, 0, 0, w, h);iv.setImageBitmap(bmp);}}
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