Android利用BitMap获得图片像素数据的方法

int[] pixels = new int[bit.getWidth()*bit.getHeight()];//保存所有的像素的数组，图片宽×高
bit.getPixels(pixels,0,bit.getWidth(),0,0,bit.getWidth(),bit.getHeight());
for(int i = 0; i < pixels.length; i++){
   int clr = pixels[i];
    int red  = (clr & 0x00ff0000) >> 16; //取高两位
    int green = (clr & 0x0000ff00) >> 8; //取中两位
    int blue = clr & 0x000000ff; //取低两位
    System.out.println("r="+red+",g="+green+",b="+blue);
}

Bitmap bm = "得到bitmap图片"
bm.getPixels(x,y);