If an image does not require much enhancement, how many bits per channel are typically used?

When an image does not require much enhancement, 8 bits per channel are typically used because this bit depth strikes a balance between quality and file size, making it suitable for standard images. In digital imaging, 8 bits per channel allow for 256 different values (from 0 to 255). This is generally sufficient to capture the nuances of colors and tones in most photographs without introducing noticeable banding or loss in quality.

Using 8 bits per channel is particularly common in consumer photography and standard output options, as it provides ample detail for typical display devices and printing processes. Higher bit depths, such as 16 or 32 bits per channel, are more appropriate for professional editing where significant adjustments are expected, as they allow for a greater range of values and better preservation of detail during processing. However, for images that are mostly accurate as captured and do not need extensive modifications, 8 bits per channel is an efficient and adequate choice.