我有点问题。我正在尝试通过Kinect v1进行人脸检测。我从kinect获取数据并将其转换为OpenCV mat。然后我试图检测我的图像中的面部,但函数返回face.size()= cca 250000000.你知道问题在哪里吗?
void getKinectData(GLubyte* dest) {
NUI_IMAGE_FRAME imageFrame; //structure of frame ( number,res etc )
NUI_LOCKED_RECT LockedRect; //pointer to actual data
if (sensor->NuiImageStreamGetNextFrame(rgbStream, 0, &imageFrame) < 0) return;
INuiFrameTexture* texture = imageFrame.pFrameTexture; // manages the frame data
texture->LockRect(0, &LockedRect, NULL, 0);
IplImage* image = cvCreateImageHeader(cvSize(COLOR_WIDTH, COLOR_HIGHT), IPL_DEPTH_8U, 4);
if (LockedRect.Pitch != 0) // pitch - how many bytes are in each row of the frame
{
BYTE* curr = (BYTE*)LockedRect.pBits;
cvSetData(image, curr, LockedRect.Pitch);
const BYTE* dataEnd = curr + (widthX*heightX) * 4;
while (curr < dataEnd) {
*dest++ = *curr++;
}
}
//cvShowImage("color image", image);
m = cv::cvarrToMat(image).clone();
DetectAndDisplay(m);
texture->UnlockRect(0);
sensor->NuiImageStreamReleaseFrame(rgbStream, &imageFrame);
}
void DetectAndDisplay(cv::Mat frame)
{
std::vector<cv::Rect> faces;
cv::Mat frame_gray;
cvtColor(frame, frame_gray, cv::COLOR_BGR2GRAY);
equalizeHist(frame_gray, frame_gray);
//-- Detect faces
face_cascade.detectMultiScale(frame_gray, faces, 1.1, 2, 0 | CV_HAAR_SCALE_IMAGE, cv::Size(24, 24));
for (size_t i = 0; i < faces.size(); i++)
{
cv::Point center(faces[i].x + faces[i].width / 2, faces[i].y + faces[i].height / 2);
ellipse(frame, center, cv::Size(faces[i].width / 2, faces[i].height / 2), 0, 0, 360, cv::Scalar(255, 0, 255), 4, 8, 0);
cv::Mat faceROI = frame_gray(faces[i]);
std::vector<cv::Rect> eyes;
/*
//-- In each face, detect eyes
eyes_cascade.detectMultiScale(faceROI, eyes, 1.1, 2, 0 | CASCADE_SCALE_IMAGE, Size(30, 30));
for (size_t j = 0; j < eyes.size(); j++)
{
Point eye_center(faces[i].x + eyes[j].x + eyes[j].width / 2, faces[i].y + eyes[j].y + eyes[j].height / 2);
int radius = cvRound((eyes[j].width + eyes[j].height)*0.25);
circle(frame, eye_center, radius, Scalar(255, 0, 0), 4, 8, 0);
}*/
}
//-- Show what you got
imshow(window_name, frame);
}
答案 0 :(得分:1)
我知道这个很老,但我有类似的问题,所以我认为其他人可能会受益。
在调试构建期间与发布opencv_objdetect库链接将导致detectMultiScale()返回包含数十万个错误矩形的巨大向量。以下是如何在Visual Studio 2017中修复它(我正在使用OpenCV 3.2版,因此请调整所提及的库的名称以与您使用的版本相对应):