"Sharpen" or "Enhance" refers to the process of improving the clarity and detail of an image or object. In photography and digital art, sharpening techniques increase the contrast between adjacent pixels, making edges more defined. This can help to bring out finer details that may not be easily visible in the original image. In graphic design and image editing software, such as Adobe Photoshop or GIMP, sharpening tools allow users to adjust the sharpness of an image. These tools can be applied selectively to certain areas, enhancing the overall visual quality while maintaining a natural appearance.