設置爲灰度圖

設置爲灰度圖

    
    
    
    

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

     
     
     
     

    
    
    
    
public 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; }

來自爲知筆記(Wiz)