Video-shot cut detection and key frame extraction
2016-08-23
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The key frame detection video camera switching
The basic idea is to detect shot cuts: Comparison of two frames before and after the video gray difference, if the difference exceeds a threshold of two frames, then converts the video camera, and to the frames as key frames saved.
Define the corresponding pointers and structures
Initialize pointers and structures
Calculating the difference between the front and rear video gray two frames
Comparing the difference between the two frames and the gray threshold value, exceeds the threshold value, then it is determined that the key frame is stored
Wherein the threshold size is adjusted according to the video case
The basic idea is to detect shot cuts: Comparison of two frames before and after the video gray difference, if the difference exceeds a threshold of two frames, then converts the video camera, and to the frames as key frames saved.
Define the corresponding pointers and structures
Initialize pointers and structures
Calculating the difference between the front and rear video gray two frames
Comparing the difference between the two frames and the gray threshold value, exceeds the threshold value, then it is determined that the key frame is stored
Wherein the threshold size is adjusted according to the video case
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