oversharpness
Oversharpening is an image processing artifact that occurs when an image is sharpened too aggressively. While sharpening is a technique used to enhance the detail and definition of an image, excessive application can lead to undesirable visual effects. The most common symptom of oversharpening is the appearance of halos around edges within the image. These halos are typically bright lines adjacent to dark edges, or dark lines adjacent to bright edges. This happens because sharpening algorithms work by increasing the contrast between adjacent pixels. When this increase is too pronounced, it creates artificial edges that are not present in the original scene.
Another characteristic of oversharpening is the amplification of noise. Image noise, which can be random variations