Image filtering is a process used in digital image processing to enhance or modify images. It involves applying mathematical operations to the pixels of an image to achieve various effects, such as blurring, sharpening, or removing noise. Filters can be designed to highlight specific features or improve overall image quality. There are different types of filters, including Gaussian filters for smoothing and Laplacian filters for edge detection. These filters can be applied using software tools or programming libraries, making it easier for users to manipulate images for various applications, such as photography, medical imaging, and computer vision.