count像素坐标x和y [英] count Pixel coordinates x and y

问题描述

我尝试使用此代码对图像中的像素坐标（x，y）求和

这是代码

 ＃include< cv.h> 
＃include< cvaux.h> 
＃include< stdio.h> 
＃include< highgui.h> 
＃include< iostream> 
＃include< cxtypes.h> // for cvarr 
 using namespace std; 
 //这个程序计算灰色图像中的像素值
 void main（）
 {
 IplImage * image; 
 int w，h; 
 char * filename; 
 filename =D：\\Recognition \\Image Crop \\7.jpg; 
 image = cvLoadImage（filename，0）; // for grayscal image 
 //获取图像属性
 w = image-> width; // image width 
 h = image-> height; // image height 
 cout<<1。image width<< w<lt;\\\
2。image height<<<<\\\
 
 int Sx，Sy; 
 const CvArr * arr; 
 CvScalar se; //存储num 
 for（int x = 0; x> image-> width; x ++）
 {
 for（int y = 0; image-> height; y ++ ）
 {
 se = cvGet2D（image，x，y）; 
 Sx = se.val [y]; 
 Sx + = Sx; 
} 
 Sy = se.val [x]; 
 Sy + = Sy; 
} 
 cout<<3。sum x =<<< Sx<\ n4。sum y =<<< ; 
} 
  

我试图计算像素坐标x和y的总和。 p>

解决方案

这些循环有什么用处？

  for（int x = 0; x> image-> width; x ++）
 {
 for（int y = 0; image-> height; y ++）
  

应为：

  （int x = 0; x< image-> width; x ++）
 {
 for（int y = 0; y  height; y ++）
  
 
 
 
对吗？
 
 
 
 
 
 
  Sx = se.val [y]; 
 Sx + = Sx; 
  
您正在重置 Sx 然后将其加倍，但是然后将该计算丢弃下一个循环迭代。类似的问题与 Sy 。
 
 
 
我鼓励你看看你的程序一行一行，真正想在公开发布问题之前它正在做什么。
 
i try this code to summation the pixels coordinates (x,y) in the image 

this is the code
#include<cv.h>
#include<cvaux.h>
#include<stdio.h>
#include<highgui.h>
#include<iostream>
#include<cxtypes.h> // for cvarr 
using namespace std;
// This program to count the pixel value in the gray image
void main()
{
    IplImage* image;
    int w,h;
    char* filename;
    filename="D:\\Recognition\\Image Crop\\7.jpg";
    image=cvLoadImage(filename,0); //for grayscal image
    // Get image attribute
    w=image->width; //image width
    h=image->height; //image height
    cout<<"1. image width "<<w<<"\n2. image height "<<h<<"  \n";
    int Sx,Sy;
    const CvArr* arr;
    CvScalar se; // to store the num
    for(int x=0;x>image->width;x++)
    {
        for(int y=0;image->height;y++)
        {
            se=cvGet2D(image,x,y);
            Sx=se.val[y];
            Sx+=Sx;
        }
        Sy=se.val[x];
        Sy+=Sy;
    }
    cout<<"3. sum x ="<<Sx<<"\n4. sum y ="<<Sy<<" \n";
}
i am trying to calculate the sum of pixel coordinates x and y .
解决方案
What's with these loops?
for(int x=0;x>image->width;x++)
{
    for(int y=0;image->height;y++)
Should be:
for(int x=0;x<image->width;x++)
{
    for(int y=0;y<image->height;y++)
right?

Plus also, what's with this?:
        Sx=se.val[y];
        Sx+=Sx;
You're resetting Sx every loop iteration and then doubling it, but then throwing that computation away next loop iteration.  Similar issues with the Sy.

I encourage you take a look at your program line by line and really think about what it's doing before you post questions publically.

                        
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