android图片圆角、图片去色处理示例

易采站长站为您分析android图片圆角、图片去色处理示例,需要的朋友可以参考下    

Android中图片处理

用来对Android中的项目图片进行处理

 

复制代码
package com.zhanggeng.contact.tools;

 

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.BitmapDrawable;
import android.view.ViewGroup;
import android.view.animation.AccelerateInterpolator;

/**
 * 处理图片的工具类.
 * 
 */
public class ImageTools {

 /** */
 /**
  * 图片去色,返回灰度图片
  * 
  * @param bmpOriginal
  *            传入的图片
  * @return 去色后的图片
  */
 public static Bitmap toGrayscale(Bitmap bmpOriginal) {
  int width, height;
  height = bmpOriginal.getHeight();
  width = bmpOriginal.getWidth();
  Bitmap bmpGrayscale = Bitmap.createBitmap(width, height,
    Bitmap.Config.RGB_565);
  Canvas c = new Canvas(bmpGrayscale);
  Paint paint = new Paint();
  ColorMatrix cm = new ColorMatrix();
  cm.setSaturation(0);
  ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
  paint.setColorFilter(f);
  c.drawBitmap(bmpOriginal, 0, 0, paint);
  return bmpGrayscale;
 }

 /** */