Compression reduces the size of a file so it takes less storage space and less time to transmit. This topic compares lossy and lossless compression: what each one removes, what can be recovered afterwards, and which is appropriate for text, images, audio and video. Run-length encoding is examined as a worked example of lossless compression, and you will apply it to sample data. The topic also covers why some file types cannot be compressed usefully.
🔒 Sign in to view this topic's basics.