Black point compensation is a color management function that preserves shadow detail when a photo is translated to a profile with fewer available dark tones than are present in the original image – for instance, when it will be printed on a paper or with inks that can't achieve the true black of the original. Rather than allowing the unobtainable dark tones to be clipped away, and sacrificing shadow detail, Black Point Compensation re-maps the original tone steps into the available tone range.