图像分割工作总结（五）opencv遍历图像

IplImage*src=cvLoadImage(filename,0);
CvScalar s=cvGet2D(src,i,j);
printf("%f",s.val[0]);
cvSet2D(src,i,j,s);

IplImage* src=cvLoadImage(filename,0);
(uchar*)(src->imagedata+h*src->widthstep)[w]=111;

uchar* data=(uchar*)src->imagedata;
int step=src->widthstep/sizeof(uchar);
data[h*step+w]=111;

float*data=(float*)src->imagedata;
int step=src->widthstep/sizeof(float);
data[h*step+w*channels+k]=111;

template<class T> class Image
{
public:
IplImage* pimg;
Image(IplImage* img=0){pimg   =  img;}
~Image(){pimg=0;}

void operater=(pimg=img;)
inline T* operater[](const int row)
{return ((T*)(pimg->imagedata+row*pimg->widthstep));}
}
struct RgbPixel
{
unsigned char r,g,b;
};

struct RgbPixelFloat
{
float r,g,b;
}

Image<unsigned char> imageA（src）;
imageA[i][j]=111;