Linear Filtering

Linear filtering is a process used to modify or enhance signals, images, or data by emphasizing certain features and reducing noise. Imagine you have a picture with graininess. A linear filter can smooth out that graininess without losing important details. It works by taking a weighted average of surrounding values, where each value contributes to the final output based on its importance. This technique is widely used in fields like audio processing, image editing, and data analysis to improve clarity and focus on desired information while minimizing distractions or irrelevant content.