A Low Pass Filter is an electronic circuit that allows signals with a frequency lower than a certain cutoff frequency to pass through while attenuating (reducing) the strength of signals with frequencies higher than that cutoff. This makes it useful in various applications, such as audio processing, where it can help eliminate high-frequency noise from a sound signal. In digital signal processing, a low pass filter can be implemented using algorithms to smooth out data by removing rapid fluctuations. This technique is commonly used in image processing to reduce noise and improve the quality of images, making it easier to analyze visual information.