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Fix/opencv capture #2

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Fix/opencv capture #2

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df778c0
Fix export pkgconfig function in CMake file.
ArMourMag Nov 13, 2019
b37cfd3
Fix if error and check size of image.
ArMourMag Nov 21, 2019
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6 changes: 3 additions & 3 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,6 @@ esrocos_init()
esrocos_export_function("camera_capture" "tutorial/cam_capture")

#uncomment to export PKG-CONFIG-file
esrocos_export_pkg-config_info( VERSION 1.0
REQUIRES opencv
)
esrocos_export_pkgconfig( VERSION 1.0
REQUIRES opencv
)
33 changes: 19 additions & 14 deletions camera_capture/camera_capture.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -14,19 +14,24 @@ void camera_capture_startup()
void camera_capture_PI_capture()
{
VideoCapture cap(0); // open the default camera
if(!cap.isOpened()) // check if we succeeded

namedWindow("raw",1);
namedWindow("edges",2);

Mat frame;
Mat edges;
cap >> frame; // get a new frame from camera
cvtColor(frame, edges, COLOR_BGR2GRAY);
GaussianBlur(edges, edges, Size(7,7), 1.5, 1.5);
Canny(edges, edges, 0, 30, 3);
imshow("raw", frame);
imshow("edges", edges);
if(waitKey(100) >= 0);
if(cap.isOpened()) // check if we succeeded
{
namedWindow("raw",1);
namedWindow("edges",2);

Mat frame;
Mat edges;
cap >> frame; // get a new frame from camera

if(frame.size().width > 0 && frame.size().height > 0)
{
cvtColor(frame, edges, COLOR_BGR2GRAY);
GaussianBlur(edges, edges, Size(7,7), 1.5, 1.5);
Canny(edges, edges, 0, 30, 3);
imshow("raw", frame);
imshow("edges", edges);
if(waitKey(100) >= 0);
}
}
}