.. ocv:cfunction:: CvCapture* cvCaptureFromFile( const char* filename )
.. ocv:pyoldfunction:: cv.CaptureFromFile(filename) -> CvCapture
- :param filename: name of the opened video file
+ :param filename: name of the opened video file (eg. video.avi) or image sequence (eg. img_%02d.jpg, which will read samples like img_00.jpg, img_01.jpg, img_02.jpg, ...)
:param device: id of the opened video capturing device (i.e. a camera index). If there is a single camera connected, just pass 0.
.. ocv:pyfunction:: cv2.VideoCapture.open(filename) -> retval
.. ocv:pyfunction:: cv2.VideoCapture.open(device) -> retval
- :param filename: name of the opened video file
+ :param filename: name of the opened video file (eg. video.avi) or image sequence (eg. img_%02d.jpg, which will read samples like img_00.jpg, img_01.jpg, img_02.jpg, ...)
:param device: id of the opened video capturing device (i.e. a camera index).
--- /dev/null
+#include <opencv2/core/core.hpp>
+#include <opencv2/highgui/highgui.hpp>
+
+#include <iostream>
+
+using namespace cv;
+using namespace std;
+
+static void help(char** argv)
+{
+ cout << "\nThis sample shows you how to read a sequence of images using the VideoCapture interface.\n"
+ << "Usage: " << argv[0] << " <image_mask> (example mask: example_%02d.jpg)\n"
+ << "Image mask defines the name variation for the input images that have to be read as a sequence. \n"
+ << "Using the mask example_%02d.jpg will read in images labeled as 'example_00.jpg', 'example_01.jpg', etc."
+ << endl;
+}
+
+int main(int argc, char** argv)
+{
+ if(argc != 2)
+ {
+ help(argv);
+ return 1;
+ }
+
+ string first_file = argv[1];
+ VideoCapture sequence(first_file);
+
+ if (!sequence.isOpened())
+ {
+ cerr << "Failed to open the image sequence!\n" << endl;
+ return 1;
+ }
+
+ Mat image;
+ namedWindow("Image sequence | press ESC to close", 1);
+
+ for(;;)
+ {
+ // Read in image from sequence
+ sequence >> image;
+
+ // If no image was retrieved -> end of sequence
+ if(image.empty())
+ {
+ cout << "End of Sequence" << endl;
+ break;
+ }
+
+ imshow("Image sequence | press ESC to close", image);
+
+ if(waitKey(500) == 27)
+ break;
+ }
+
+ return 0;
+}