Opencv--perlin Noise

Define head function#ifndef ps_algorithm_h_included#define ps_algorithm_h_included#include <iostream># Include <string> #include "cv.h" #include "highgui.h" #include "cxmat.hpp" #include "cxcore.hpp" #include "math.h" Using namespace Std;using namespace Cv;void show_image (mat&, const string &); #endif//ps_algorithm_h_included/* Perlin noise.*/#include "ps_algorithm.h" #include <time.h>using namespace std;using namespace Cv;void generate_ Smoothnoise (mat& src, mat& std, int octave), float cosine_interpolate (float x1,float x2,float Alpha), #define PI 3.    1415926int Main () {string Img_name ("4.jpg");    Mat Img;    Img=imread (Img_name);    Mat Cloud (Img.size (), CV_32FC1);    Mat cloud_temp (Img.size (), CV_32FC1);    Mat base_noise (Img.size (), CV_32FC1);    CV::RANDN (base_noise, 0.5, 0.25);    Show_image (base_noise, "N1");    float persistance = 0.8;    float totalamplitude = 0.0;    float amplitude;    int octavecount=8; for (int i=0; i<octavecount; i++)   {amplitude=std::p ow (Persistance, (octavecount-i));        Totalamplitude=totalamplitude+amplitude;        Generate_smoothnoise (Base_noise, cloud_temp, i);    Cloud=cloud+cloud_temp*amplitude;    } cloud=cloud/totalamplitude;    Show_image (Cloud, "out.jpg");    Imwrite ("Out.jpg", cloud*255); Waitkey ();}    void Generate_smoothnoise (mat& src, mat& dst, int octave) {src.copyto (DST);    int width=src.cols;    int height=src.rows;    Float Sampleperiod=pow (2,octave);    float Samplefrequency=1/sampleperiod;    int sample_i0, SAMPLE_I1;    float vertical_blend, horizontal_blend;    int sample_j0, sample_j1;    float top, bottom;        for (int i=0; i

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Opencv--perlin Noise