What is Interframe Compression?

Interframe compression is a technique used in video compression, which reduces the amount of data used to represent a video by comparing each frame to the ones before and after it. This method only stores the differences between frames rather than storing each frame as a complete picture. It is widely used in video editing and production for its ability to significantly reduce the file size without compromising the video quality.

Understanding Interframe Compression

Interframe compression operates on the principle that most of the frames in a video are similar to their neighbors. It utilizes this similarity to eliminate redundant information, only storing the changes from one frame to another. This is why it’s also known as temporal compression. By storing only the differences, the overall file size can be greatly reduced.

How Does Interframe Compression Work?

Interframe compression works by using two types of frames: I-frames and P-frames. I-frames are the keyframes, which are complete images that act as reference points. P-frames, on the other hand, only contain changes from the previous frames. The process involves the following steps:

  • First, the video is divided into small segments or groups of pictures (GOP).
  • Each GOP begins with an I-frame. This frame is a fully stored image and does not require any other frame to decode.
  • Following the I-frame are several P-frames. These frames only contain the changes from the previous frame. They require both the previous and following frames for decoding.

Benefits of Using Interframe Compression

There are several advantages of using Interframe compression, particularly for video editors, filmmakers, and content creators. These include:

  • Reduced File Size: Interframe compression significantly decreases the file size of the video, making it easier to store and share.
  • Preserved Video Quality: Despite the reduction in file size, Interframe compression maintains the original video quality to a great extent.
  • Efficient Streaming: Because of the reduced file size, videos compressed using Interframe are faster and more efficient to stream online.


Interframe compression is a powerful tool for anyone working with video content. It not only helps in reducing the file size but also ensures that the quality of the video is maintained. Whether you are a video editor, a filmmaker, an influencer, or a YouTuber, understanding and utilizing Interframe compression can help you deliver high-quality video content more efficiently.

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