Transform Coding

Transform coding is a technique used to compress digital data, like images or audio, by converting it into a different mathematical form that makes the data more efficient to store. It involves applying a mathematical transformation—such as the Fourier or wavelet transform—to represent the data in terms of frequency or other basis functions. This process highlights important features and reduces redundant information, allowing less important parts to be compressed or discarded. Ultimately, transform coding enables high-quality data storage and transmission with reduced file sizes, while preserving the essential details for accurate reconstruction.