Android OpenCV 灰度图转化

tsplaycool

package com.tsayq.opencv0;import org.opencv.core.Mat;import org.opencv.highgui.Highgui;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Bundle;import android.widget.ImageView;public class OpenCV_0_Activity extends Activity {private ImageView imageView;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);imageView = (ImageView) findViewById(R.id.image);Mat img = Highgui.imread("/sdcard/Lena.jpg",0);Highgui.imwrite("/sdcard/new.JPG", img);Bitmap bitmap = BitmapFactory.decodeFile("/sdcard/new.JPG");imageView.setImageBitmap(bitmap);}}