Media Compression
This week we were asked to watch 5 videos about media compression. The first video described the differences between spatial (intraframe) and temporal (interframe) compression. Intraframe compression only works on individual frames of a video. It breaks the image down into a .jpeg format, making the image smaller. Sometimes, large blocks of pixels can be left behind during the compression process, this is called “compression artefacts” Interframe compression works in an .mpeg format by removing “redundant” information, these are pixels that don't change from one frame to the next. The example used in the video is the large white void edited in behind the speaker. The video also explains that a higher bitrate will result in a higher quality video, while a lower bitrate will give a lower quality video, regardless of compression. The second video we watched showed the difference in the same video with reduced frame rates. The 60 frames per second (FPS) video looks smooth and satisfy...
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