static int num=0;
if(Event==CV_EVENT_LBUTTONDOWN) {
if(num==4)num=0;//只是固定定义了保存4张图片，为了不让程序非法而设置的复原
cvcamPause(); //图像保存
// cvSaveImage(strleft[num],image1); cvSaveImage(strright[num],image2); // cvSaveImage(\ // cvSaveImage(\ }
if(Event==CV_EVENT_RBUTTONDOWN) {
cvcamResume(); num++; } }
能激发你用代码做视频的冲动程序
这个程序是基于opencv的，连接库就不说了，直接建立一个基于win32的控制台程序，写代码就OK了。
/* 程序名：drawing..c
功能：展示OpenCV的图像绘制功能 */
#include \
#include \#include
char wndname[] = \
CvScalar random_color(CvRNG* rng) //函数 cvRNG 初始化随机数生成器并返回其状态，RNG 随机数生成器 {
int icolor = cvRandInt(rng); //函数 cvRandInt 返回均匀分布的随机 32-bit 无符号整型值并更新 RNG 状态
return CV_RGB(icolor&255, (icolor>>8)&255, (icolor>>16)&255); //
创建 一个色彩值 }
int main( int argc, char** argv ) {
int line_type = CV_AA; // change it to 8 to see non-antialiased graphics int i;
CvPoint pt1,pt2; //基于二维整形坐标轴的点 double angle;
CvSize sz; //矩形框大小，以像素为精度 CvPoint ptt[6]; CvPoint* pt[2]; int arr[2]; CvFont font; CvRNG rng;
int width = 1000, height = 700;
int width3 = width*3, height3 = height*3; CvSize text_size; int ymin = 0;
// Load the source image
IplImage* image = cvCreateImage( cvSize(width,height), 8, 3 ); IplImage* image2;
// Create a window
cvNamedWindow(wndname, 1 );
cvZero( image ); //#define cvZero cvSetZero void cvSetZero( CvArr* arr ); arr 要被清空数组
cvShowImage(wndname,image); rng = cvRNG((unsigned)-1); pt[0] = &(ptt[0]); pt[1] = &(ptt[3]); arr[0] = 3; arr[1] = 3;
for (i = 0; i< NUMBER; i++) {
pt1.x=cvRandInt(&rng) % width3 - width; pt1.y=cvRandInt(&rng) % height3 - height; pt2.x=cvRandInt(&rng) % width3 - width; pt2.y=cvRandInt(&rng) % height3 - height;
cvLine( image, pt1, pt2, random_color(&rng), cvRandInt(&rng), line_type, 0 );//绘制连接两个点的线段 cvShowImage(wndname,image); cvWaitKey(DELAY); }
for (i = 0; i< NUMBER; i++) {
pt1.x=cvRandInt(&rng) % width3 - width; pt1.y=cvRandInt(&rng) % height3 - height; pt2.x=cvRandInt(&rng) % width3 - width; pt2.y=cvRandInt(&rng) % height3 - height;
cvRectangle( image,pt1, pt2, random_color(&rng),
cvRandInt(&rng)-1, line_type, 0 );//绘制简单、指定粗细或者带填充的 矩形
cvShowImage(wndname,image); cvWaitKey(DELAY); }
for (i = 0; i< NUMBER; i++) {
pt1.x=cvRandInt(&rng) % width3 - width; pt1.y=cvRandInt(&rng) % height3 - height; sz.width =cvRandInt(&rng) 0; sz.height=cvRandInt(&rng) 0;
angle = (cvRandInt(&rng)00)*0.180;
cvEllipse( image, pt1, sz, angle, angle - 100, angle + 200, random_color(&rng), cvRandInt(&rng)-1, line_type, 0 );//函数cvEllipse用来绘制或者填充一个简单的椭圆弧或椭圆扇形 cvShowImage(wndname,image); cvWaitKey(DELAY); }
for (i = 0; i< NUMBER; i++) {
pt[0][0].x=cvRandInt(&rng) % width3 - width; pt[0][0].y=cvRandInt(&rng) % height3 - height; pt[0][1].x=cvRandInt(&rng) % width3 - width; pt[0][1].y=cvRandInt(&rng) % height3 - height; pt[0][2].x=cvRandInt(&rng) % width3 - width; pt[0][2].y=cvRandInt(&rng) % height3 - height; pt[1][0].x=cvRandInt(&rng) % width3 - width; pt[1][0].y=cvRandInt(&rng) % height3 - height;
pt[1][1].x=cvRandInt(&rng) % width3 - width; pt[1][1].y=cvRandInt(&rng) % height3 - height; pt[1][2].x=cvRandInt(&rng) % width3 - width; pt[1][2].y=cvRandInt(&rng) % height3 - height;
cvPolyLine( image, pt, arr, 2, 1, random_color(&rng),
cvRandInt(&rng), line_type, 0 );//函数cvPolyLine 绘制一个简单的或多样的多角曲线
cvShowImage(wndname,image); cvWaitKey(DELAY); }
for (i = 0; i< NUMBER; i++) {
pt[0][0].x=cvRandInt(&rng) % width3 - width; pt[0][0].y=cvRandInt(&rng) % height3 - height; pt[0][1].x=cvRandInt(&rng) % width3 - width; pt[0][1].y=cvRandInt(&rng) % height3 - height; pt[0][2].x=cvRandInt(&rng) % width3 - width; pt[0][2].y=cvRandInt(&rng) % height3 - height; pt[1][0].x=cvRandInt(&rng) % width3 - width; pt[1][0].y=cvRandInt(&rng) % height3 - height; pt[1][1].x=cvRandInt(&rng) % width3 - width; pt[1][1].y=cvRandInt(&rng) % height3 - height; pt[1][2].x=cvRandInt(&rng) % width3 - width; pt[1][2].y=cvRandInt(&rng) % height3 - height;
cvFillPoly( image, pt, arr, 2, random_color(&rng), line_type, 0 );//函数cvFillPoly用于一个单独被多变形轮廓所限定的区域内进行填充 cvShowImage(wndname,image); cvWaitKey(DELAY); }
for (i = 0; i< NUMBER; i++) {
pt1.x=cvRandInt(&rng) % width3 - width; pt1.y=cvRandInt(&rng) % height3 - height;
cvCircle( image, pt1, cvRandInt(&rng)00, random_color(&rng), cvRandInt(&rng)-1, line_type, 0 );//函数cvCircle绘制或填充一个给定圆心和半径的圆 cvShowImage(wndname,image); cvWaitKey(DELAY); }
for (i = 1; i< NUMBER; i++) {
pt1.x=cvRandInt(&rng) % width3 - width; pt1.y=cvRandInt(&rng) % height3 - height;
cvInitFont( &font, cvRandInt(&rng) % 8, (cvRandInt(&rng)0)*0.05+0.1, (cvRandInt(&rng)0)*0.05+0.1,
(cvRandInt(&rng)%5)*0.1, cvRound(cvRandInt(&rng)),
line_type );//字体结构初始化。函数 cvRound, cvFloor, cvCeil 用一种舍入方法将输入浮点数转换成整数。 cvRound 返回和参数最接近的整数值
cvPutText( image, \Petroleum University!\pt1, &font, random_color(&rng));//在图像中加入文本 cvShowImage(wndname,image); cvWaitKey(DELAY); }
cvInitFont( &font, CV_FONT_HERSHEY_COMPLEX, 3, 3, 0.0, 5, line_type );
cvGetTextSize( \设置字符串文本的宽度和高度
pt1.x = (width - text_size.width)/2; pt1.y = (height + text_size.height)/2; image2 = cvCloneImage(image);
for( i = 0; i < 255; i++ ) {
cvSubS( image2, cvScalarAll(i), image, 0 );//函数 cvSubS 从原数组的每个元素中减去一个数量
cvPutText( image, \CV_RGB(255,i,i));
cvShowImage(wndname,image); cvWaitKey(DELAY); }
// Wait for a key stroke; the same function arranges events processing cvWaitKey(0);
cvReleaseImage(&image); cvReleaseImage(&image2); cvDestroyWindow(wndname);
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