spectral filtering

Spectral filtering is a technique used to separate different frequencies or wavelengths within a signal or light. Imagine you have a rainbow of colors; spectral filtering allows you to isolate one specific color while blocking others. This is useful in various applications, such as audio processing, where you might want to enhance or reduce certain sounds, or in photography, where filters can enhance colors or contrast. By focusing on specific parts of the spectrum, spectral filtering helps us analyze, improve, or manipulate signals for clearer results or better performance.