![]() In the lossless method, you can easily restore the original file without degrading the quality. ![]() This is achieved by removing unnecessary metadata from the file. LosslessĪs evident from the name, lossless file compression compresses a file without losing its quality. This is mostly used in audio files and images. Commonly used lossy algorithms include Transform coding, fractal compression, DWT, DCT, and RSSMS. The lossy method is usually used when your priority is reducing the size of a file and not its quality. However, it is difficult to restore a file to its original form after a lossy compression is applied to it. In the lossy compression method, unnoticeable data or data that is not required is eliminated to decrease the overall file size.
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