![]() ![]() The term lossy refers to the fact that information is lost when extra or redundant data is removed from the file. JPEG images, MP3 audio, and MPEG video formats are all examples of lossy compression techniques. Lossy compression creates a smaller file size but at the cost of reduced video quality, which may or may not be noticeable to viewers. There are two ways to compress videos-lossy and lossless. This process groups similar pixels together, greatly reducing the file size. ![]() In an uncompressed video, data is stored for every pixel in every frame.Ĭompression reviews the images, identifies repetitive or duplicate frames, and deletes the data for a non-essential frame, and replaces it with a reference for the other identical frame. To understand how this works, think of a video file as a collection of static images. Like bitrates, higher frame rates will create larger video files.Ĭompressing a video file’s information into a smaller space reduces the file size and lowers bandwidth transmission requirements. For example, a video shot at 30 FPS has 30 images in one second of footage.
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