Opencv--skewing

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# Include "ps_algorithm.h" #include <time.h>using namespace std;using namespace CV; #define PI 3.1415926int main () {s    Tring Img_name ("4.jpg");    Mat Img;    Img=imread (Img_name);    float THETA=PI/6;    int width=img.cols;    int height=img.rows;    /*//horizontal skewing int new_height=height;    int New_width=width+height*tan (theta) +1;    Mat Img_h=mat::zeros (New_height,new_width, CV_8UC3);    float Dis;    float new_x, new_y;    Float x1, y1, p;        for (int y=0; y<new_height; y++) {dis= (height-y) *tan (theta);           for (int x=0; x<new_width; x + +) {new_y=y; Right skew//NEW_x=x-dis;          Left skew New_x=x+dis-height*tan (theta);          if (new_x<0) new_x=0;          if (new_x>width-1) new_x=width-2;                if (new_x>0 && new_x<width-1) {x1=int (new_x);                Y1=int (new_y);                p=new_x-x1;                Img_h.at<vec3b> (y,x) [0]= (1-p) *img.at<vec3b> (y1,x1) [0]+p*img.at<vec3b> (y1,x1+1) [0];                Img_h.at<vec3b> (y,x) [1]= (1-p) *img.at<vec3b> (y1,x1) [1]+p*img.at<vec3b> (y1,x1+1) [1];          Img_h.at<vec3b> (y,x) [2]= (1-p) *img.at<vec3b> (y1,x1) [2]+p*img.at<vec3b> (y1,x1+1) [2];    }}} show_image (Img_h, "out");    Imwrite ("H.jpg", img_h);    *///Vertical skewing int New_height=height+width*tan (theta) +1;    int new_width=width;    Mat Img_v=mat::zeros (New_height,new_width, CV_8UC3);    float Dis;    float new_x, new_y;    Float x1, y1, p;  for (int y=0; y<new_height; y++) {      for (int x=0; x<new_width; x + +) {Dis=x*tan (theta);           New_x=x;           Right skew New_y=y-dis;          Left skew//New_y=y+dis-width*tan (theta);                if (new_y>0 && new_y

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Opencv--skewing