Mat for_Rotation = getRotationMatrix2D(Point(before_ls / 2, before_Rotating.rows / 2), (rotating_angle - 180), 1) //affine transformation matrix for the 2D rotation// Imshow("OriginalVideo", before_Rotating) //show image frames before rotation// Mat before_Rotating //declaring matrix for image before rotation//īool temp = loadvideo.read(before_Rotating) //load frames from video source to matrix// Int rotating_angle = 180 //initial rotation angle//ĬreateTrackbar("Rotation", "RotatedVideo", &rotating_angle, 360) //creating trackbar for rotation// NamedWindow("RotatedVideo") //declaring window to show rotated video stream// NamedWindow("OriginalVideo") //declaring window to show original video stream// VideoCapture loadvideo(0) //capture video from default camera// The following program demonstrates how to rotate a video in OpenCV using C++. If you want to use a video file, just put the address of the video file properly. Here, we are not loading the video but taking a video using the camera. The only difference is instead of load a still picture into an image matrix, we have loaded a video or take video stream from the camera. An integrated lens with a large spread of focal lengths is both a plus and a minus of such cameras.Rotating a video is similar to rotate an image. Superzoom cameras are All-in-One options, because they have satisfying characteristics. Pros or amateurs who lack the capacity of a camera matrix are moving to film cameras if medium format cameras are too expensive for them. On the other hand, they are quite pricey. Medium format cameras are used by professionals, as these cameras allow you to take pictures with high resolution.
Moreover, some models have excellent shooting quality.
They are easily placed in the pocket of your jacket and do not weigh very much. Compact cameras are most often used on trips. So, they allow you to change optics and have good characteristics. DSLR and mirrorless cameras are considered to be the most universal, as they have both low-cost and professional models. The choice of camera depends on the area where the photographer will use it. DSLR, mirrorless, medium format, compact, superzoom, film and many other types of cameras that exist are designed for different purposes.
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