Clipping is a term that we will come across regularly. It describes image areas where changes in tone or color cause the differences between neighboring pixels, and thus image detail, to disappear. If we were to shift the white point in our example too far to the left (i.e., into rather than just up to the curve), we would most likely clip the image highlights, leading to burned-out highlight detail. Clipping is less obvious (and sometimes acceptable) in shadow areas, but highlight clipping is generally taboo. Always use the clipping preview (|M| or @ key) to check the effects of your black and white point adjustments.

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