A line image is a high-contrast photographic or digital image that resembles a pen-and-ink sketch. These images emphasize edges and outlines while removing intermediate tones, creating a striking, simplified representation of the subject.
Understanding line images is useful for photographers, illustrators, and designers who want to create artistic effects, technical illustrations, or graphics suitable for reproduction. Line images are commonly used in graphic design, printmaking, and educational materials, where clarity, contrast, and bold outlines are essential.