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SignalLab1
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buffer part

This commit is contained in:
Ly PECHVATTANA 2023-02-24 11:17:03 +01:00
parent 59db00254d
commit 3da94d12ff
1 changed files with 15 additions and 0 deletions
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15
ppg.cpp
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@ -9,6 +9,7 @@ const int FPS = 30;
bool isDiscardData = true;
int countDiscard = 0;
const int DISCARD_DURATION = 10;
const int BUFFER_DURATION = 60;
int main() {
cv::VideoCapture cap;
@ -42,6 +43,20 @@ int main() {
faceDetector.detectMultiScale(frame, faceRectangles, 1.1, 3, 0,cv::Size(20, 20));
foreheadROI = faceRectangles[0];
foreheadROI.height *= 0.3;
cv::Mat frame_forehead = frame(foreheadROI);
cv::Scalar avg_forehead = mean(frame_forehead);
bool isBufferFull = false;
int sampleIdBuffer = 0;
cv::Mat greenSignal(1, FPS*BUFFER_DURATION, CV_64F);
if (!isBufferFull)
{
greenSignal.at<double>(0, sampleIdBuffer) = avg_forehead[1] ;
sampleIdBuffer++;
if (sampleIdBuffer == FPS*BUFFER_DURATION)
{
isBufferFull = true;
}
}
cv::rectangle(frame, faceRectangles[0], cv::Scalar(0, 0, 255), 1, 1, 0);
cv::rectangle(frame, foreheadROI, cv::Scalar(0, 255, 0), 1, 1, 0);
cv::imshow("Color", frame);