我有一个需要转换为 C 的 C++ openCV 代码。但是我找不到指南来检查我应该使用什么而不是
cvScalar、cvNamedWindow、cvSmooth
另外，如果您在我的代码中发现任何其他问题，您能告诉我吗？
#include "cv.h"
#include "highgui.h"
#include "cxcore.h"
#include <stdio.h>
IplImage* Threshold(IplImage* src)
{
IplImage* srcHSV = cvCreateImage(cvGetSize(src), 8, 3);
cvCvtColor(src, srcHSV, CV_BGR2HSV);// Convert the BGR to HSV
IplImage* Thresholdimg = cvCreateImage(cvGetSize(src), 8, 1); // create a Threshold image
// HSV tresholding
cvInRangeS(srcHSV, CvScalar(7, 107, 219), CvScalar(11,148,255), Thresholdimg);
cvSmooth( Thresholdimg, Thresholdimg, CV_GAUSSIAN, 9, 9 ); // Smoothing with a Gaussian filter (9*9 kernel)
cvReleaseImage(&srcHSV);
return Thresholdimg;
}
int main()
{
CvCapture* capture = 0;
capture = cvCaptureFromCAM(1);// 1 for usb webcam, 0 o/w.
if(!capture)
{
printf("Can not capture,no device found\n");
return -1;
}
// Windows for Threshold and Output
cvNamedWindow("Tracking output");
cvNamedWindow("Threshold");
while(1) // infinite loop
{
IplImage* frame = 0;
frame = cvQueryFrame(capture); // decompress the captured frame
if(!frame)
break;
IplImage* finalthreshold = Threshold(frame);
cvShowImage("Threshold", finalthreshold);//show the thresholded image
CvMemStorage* storage = cvCreateMemStorage(0);// allocate memory to store the contour information
CvSeq* circles = cvHoughCircles(finalthreshold, storage, CV_HOUGH_GRADIENT, 2, finalthreshold->height/4, 100, 40, 20, 200);
int i;
for (i = 0; i < circles->total; i++)
{
float *p = (float*)cvGetSeqElem(circles, i);
printf("Ball! x=%f y=%f r=%f\n\r",p[0],p[1],p[2] );
CvPoint center = cvPoint(cvRound(p[0]),cvRound(p[1]));
CvScalar val = cvGet2D(finalthreshold, center.y, center.x);
if (val.val[0] < 1) continue;
cvCircle(frame, center, 3, CV_RGB(0,255,0), -1, CV_AA, 0);
cvCircle(frame, center, cvRound(p[2]), CV_RGB(255,0,0), 3, CV_AA, 0);
cvCircle(finalthreshold, center, 3, CV_RGB(0,255,0), -1, CV_AA, 0);
cvCircle(finalthreshold, center, cvRound(p[2]), CV_RGB(255,0,0), 3, CV_AA, 0);
}
cvShowImage("Tracking output", frame);
int c = cvWaitKey(27);
if(c!=-1)
break;
cvReleaseImage(&finalthreshold);
}
cvReleaseCapture(&capture);
return 0;
}
以下是错误：
root@ghostrider:/home/zero/Desktop/deneme opencv# opencv untitled.c
compiling untitled.c
untitled.c: In function ‘Threshold’:
untitled.c:17:2: error: too few arguments to function ‘cvScalar’
In file included from /usr/local/include/opencv2/core/core_c.h:47:0,
from /usr/local/include/opencv/cv.h:63,
from untitled.c:1:
/usr/local/include/opencv2/core/types_c.h:1224:22: note: declared here
untitled.c:17:2: error: too few arguments to function ‘cvScalar’
In file included from /usr/local/include/opencv2/core/core_c.h:47:0,
from /usr/local/include/opencv/cv.h:63,
from untitled.c:1:
/usr/local/include/opencv2/core/types_c.h:1224:22: note: declared here
untitled.c:19:2: error: too few arguments to function ‘cvSmooth’
In file included from /usr/local/include/opencv/cv.h:65:0,
from untitled.c:1:
/usr/local/include/opencv2/imgproc/imgproc_c.h:81:13: note: declared here
untitled.c: In function ‘main’:
untitled.c:42:2: error: too few arguments to function ‘cvNamedWindow’
In file included from /usr/local/include/opencv/highgui.h:47:0,
from untitled.c:2:
/usr/local/include/opencv2/highgui/highgui_c.h:120:12: note: declared here
untitled.c:43:2: error: too few arguments to function ‘cvNamedWindow’
In file included from /usr/local/include/opencv/highgui.h:47:0,
from untitled.c:2:
/usr/local/include/opencv2/highgui/highgui_c.h:120:12: note: declared here
Output file => untitled
第 1224 行/usr/local/include/opencv2/core/types_c.h
CV_INLINE CvScalar cvScalar( double val0, double val1 CV_DEFAULT(0),
double val2 CV_DEFAULT(0), double val3 CV_DEFAULT(0))