创建opencv Matrix时候的type

opencv matrix type:
CV_[The number of bits per item][Signed or Unsigned][Type Prefix]C[The channel number]
CV_<bit-depth>{U|S|F}C(<number_of_channels>)

M1 with one channel =
 [255, 255;
  255, 255]

M2 with two channel =
 [0, 255, 0, 255;
  0, 255, 0, 255]

M3 with three channel =
 [0, 0, 255, 0, 0, 255;
  0, 0, 255, 0, 0, 255]

#include "opencv/cv.h"#include <iostream>using namespace std;using namespace cv;int main(char* args) {  Mat M1(2,2, CV_8UC1, 255);  Mat M2(2,2, CV_8UC2, Scalar(0,255));  Mat M3(2,2, CV_8UC3, Scalar(0,0,255));  cout << "M1 with one channel = "<< endl << " "  << M1 << endl << endl;  cout << "M2 with two channel = "<< endl << " "  << M2 << endl << endl;  cout << "M3 with three channel = "<< endl << " "  << M3 << endl << endl;  M1.create(4,4, CV_8UC(2));  cout << "M1 = "<< endl << " "  << M1 << endl << endl;  Scalar s1(1);  Scalar s2(1, 2);  Scalar s3(1, 2, 3);  Scalar s4(1, 2, 3, 4);  Scalar s5(1, 2, 3, 5);//  Scalar s(1, 2, 3, 5, 6, 7, 8, 9);  cout << "scalar s1 "<< endl << " "  << s1 << endl << endl;  cout << "scalar s2 "<< endl << " "  << s2 << endl << endl;  cout << "scalar s3 "<< endl << " "  << s3 << endl << endl;  cout << "scalar s4 "<< endl << " "  << s4 << endl << endl;  cout << "scalar s5 "<< endl << " "  << s5 << endl << endl;//  cout << "scalar s5 "<< endl << " "  << s << endl << endl;}

http://stackoverflow.com/questions/8377091/what-are-the-differences-between-cv-8u-and-cv-32f-and-what-should-i-worry-about
http://docs.opencv.org/java/org/opencv/core/CvType.html

注释: 只有二位的matrix可以打印，多维的话，你自己需要写输出方法