What is the purpose of edge enhancement in image processing?

The purpose of edge enhancement in image processing is primarily to enhance the contrast at the boundaries of objects within an image, which improves the apparent sharpness and detail. When edges are made more distinct, it helps in making the features of the image more recognizable, especially in medical imaging where the delineation between different tissue types is critical for accurate diagnosis. By increasing the visibility of edges, edge enhancement makes it easier for the viewer to interpret and analyze the image effectively.

The process does not focus on improving the brightness of the entire image, reducing file size, or ensuring color accuracy, which are associated with different image processing techniques. Edge enhancement specifically targets the clarity and contrast of edges, which is vital in radiological assessments for better visualization of anatomical structures.