Contrast Adaptive Sharpening is a digital image processing technique designed to enhance the sharpness of images while preserving their natural appearance. It works by analyzing the contrast levels in different areas of an image, applying sharpening effects selectively based on these levels. This helps to avoid over-sharpening in areas with low contrast, which can lead to unwanted artifacts. The method improves the overall clarity of images, making details more pronounced without introducing excessive noise. By focusing on areas with higher contrast, Contrast Adaptive Sharpening ensures that important features stand out, resulting in a more visually appealing and detailed image.