cvSnakeImage

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// TrainingTools.cpp : 定义控制台应用程序的入口点。// #include "stdafx.h"#include <iostream>#include <string.h>#include <cxcore.h>#include <cv.h>#include <highgui.h>#include <fstream>  IplImage *image = 0 ; //原始图像IplImage *image2 = 0 ; //原始图像copy using namespace std;int Thresholdness = 141;int ialpha = 20;int ibeta=20; int igamma=20;  void onChange(int pos){ if(image2) cvReleaseImage(&image2);if(image) cvReleaseImage(&image); image2 = cvLoadImage("f:\\vc\\cv\\circle.jpg",1); //显示图片image= cvLoadImage("f:\\vc\\cv\\circle.jpg",0); cvThreshold(image,image,Thresholdness,255,CV_THRESH_BINARY); //分割域值 CvMemStorage* storage = cvCreateMemStorage(0);CvSeq* contours = 0; cvFindContours( image, storage, &contours, sizeof(CvContour), //寻找初始化轮廓CV_RETR_EXTERNAL , CV_CHAIN_APPROX_SIMPLE ); if(!contours) return ; int length = contours->total;if(length<10) return ; CvPoint* point = new CvPoint[length]; //分配轮廓点 CvSeqReader reader;CvPoint pt= cvPoint(0,0);;CvSeq *contour2=contours; cvStartReadSeq(contour2, &reader);for (int i = 0; i < length; i++){CV_READ_SEQ_ELEM(pt, reader);point[i]=pt;}cvReleaseMemStorage(&storage); //显示轮廓曲线for(i=0;i<length;i++){int j = (i+1)%length;cvLine( image2, point[i],point[j],CV_RGB( 0, 0, 255 ),1,8,0 ); } float alpha=ialpha/100.0f; float beta=ibeta/100.0f; float gamma=igamma/100.0f;  CvSize size; size.width=3; size.height=3; CvTermCriteria criteria; criteria.type=CV_TERMCRIT_ITER; criteria.max_iter=1000; criteria.epsilon=0.1; cvSnakeImage( image, point,length,&alpha,&beta,&gamma,CV_VALUE,size,criteria,0 );  //显示曲线for( i=0;i<length;i++){int j = (i+1)%length;cvLine( image2, point[i],point[j],CV_RGB( 0, 255, 0 ),1,8,0 ); }delete []point; } int main(int argc, char* argv[]){  cvNamedWindow("win1",0); cvCreateTrackbar("Thd", "win1", &Thresholdness, 255, onChange);cvCreateTrackbar("alpha", "win1", &ialpha, 100, onChange);cvCreateTrackbar("beta", "win1", &ibeta, 100, onChange);cvCreateTrackbar("gamma", "win1", &igamma, 100, onChange);cvResizeWindow("win1",300,500);onChange(0); for(;;){if(cvWaitKey(40)==27) break;cvShowImage("win1",image2);} return 0;}
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