DOC《常见问题及解决方法》

float* myarr = new float[rows*cols];

// step 1) initializing CvMat header CvMat mat = cvMat( rows, cols, CV_32FC1, // 32-bit floating-point, single channel type myarr // user data pointer (no data is copied) );

// step 2) using cv functions, e.g. calculating l2 (Frobenius) norm double norm = cvNorm( &

mat, 0, CV_L2 );

... delete myarr;

其它情况在参考手册中有描述.见cvCreateMatHeader, cvInitMatHeader, cvCreateImageHeader, cvSetData etc. 如何加载和显示图像 /* usage: prog */ #include cv.h #include highgui.h int main( int argc, char** argv ) { IplImage* img;

if( argc ==

2 &

&

(img = cvLoadImage( argv[1], 1)) !=

0 ) { cvNamedWindow( Image view ,

1 );

cvShowImage( Image view , img );

cvWaitKey(0);

// very important, contains event processing loop inside cvDestroyWindow( Image view );

cvReleaseImage( &

img );

return 0;

} return -1;

} 如何发现和处理轮廓线 请看演示 squares ? ........