Contrast Adjustment is a process used in photography and image editing to enhance the difference between light and dark areas in an image. By increasing contrast, images can appear more vibrant and detailed, making features stand out more clearly. Conversely, reducing contrast can create a softer, more muted look. This adjustment is commonly found in software like Adobe Photoshop and GIMP, where users can manipulate contrast levels using sliders or presets. Proper contrast adjustment can significantly improve the overall quality of an image, making it more visually appealing and easier to interpret.