This document summarizes a seminar presentation on image processing. It defines image processing as processing of digital images, which are arrays of numbers represented by bits. It lists common applications such as face detection, medical imaging, and remote sensing. The purposes of image processing include visualization, image sharpening, measurement, and recognition. It discusses types of image processing including analog, digital and optical. It outlines the components and future scope of image processing and provides advantages and disadvantages. In conclusion, it states that image processing techniques can be used to enhance, analyze and synthesize images.