Filtering techniques

Filtering techniques are methods used to separate or remove unwanted parts of data or signals to improve quality or focus on relevant information. For example, in email spam filters, undesired emails are identified and blocked. In audio processing, noise is reduced to make sound clearer. Filters analyze patterns or characteristics of data and selectively allow or suppress certain components based on criteria like frequency, intensity, or pattern. This helps in cleaning data, enhancing clarity, and extracting useful information effectively.