Picture Quality refers to the overall visual appearance and clarity of an image. It is determined by several factors such as resolution, color accuracy, contrast ratio, brightness, sharpness, and noise reduction. A high picture quality means that the image appears clear, crisp, and detailed with accurate colors and good contrast between light and dark areas. On the other hand, a low picture quality indicates blurry or pixelated images with poor color representation and lack of detail. The overall picture quality can be affected by various factors such as the type of camera used to capture the image, the resolution of the display device, and any post-processing that may have been applied to the image.