Image resizing is the process of changing the dimensions of a digital image, either by increasing or decreasing its width and height. This is often done to fit specific requirements for websites, social media, or printing. Resizing can help improve loading times and ensure that images display correctly on various devices. There are different methods for resizing images, including bilinear and bicubic interpolation, which determine how new pixel values are calculated. It's important to maintain the image's aspect ratio to avoid distortion, ensuring that the image looks natural and retains its quality after resizing.