Question

怎样用opencv语句求二值化图像总的灰度值

Answer 1

#include <iostream>
#include <cv.h>
#include <cxcore.h>
#include <highgui.h>
using namespace std;

void main()
{
IplImage* src_img=cvLoadImage("0.bmp"); //导入图片
size_t total=0; //图像总灰度值

size_t intensity = 0; //每个像素灰度值

size_t height=src_img->height;
size_t width =src_img->width;

for (size_t rows=0;rows<height;rows++)
{
uchar* ptr = (uchar*)src_img->imageData+rows*width;
for (size_t cols=0;cols<width;cols++)
{
intensity=(int)ptr[cols];
// cout<<intensity<<"\t";
if(intensity)
total+=intensity;
}
}

cout<<"图像总的灰度值为："<<total<<endl;

}