Patent ID: 8073285

Claim:
An image editing user interface, comprising: a first control adapted to alter the brightness of an image over a range of image values between two endpoints by modifying a brightness curve in response to a position of a first slider button within a first slider bar; wherein: the first slider bar comprises a neutral position, a first range positioned on one side of the neutral position, and a second range positioned on an opposite side of the neutral position; positioning the first slider button in the neutral position has no effect on the brightness curve and the brightness of the image; sliding the first slider button within the first range produces a non-linear brightness curve that increases the brightness of the image, wherein an amplitude of the brightness curve increases as the first slider button is slid away from the neutral position; and sliding the first slider button within the second range inverts the brightness curve to produce a non-linear darkness curve, wherein the darkness curve decreases the brightness of the image, and wherein an amplitude of the darkness curve increases as the first slider button is slid away from the neutral position; and a second control adapted to operate in cooperation with the first control to modify the brightness curve in response to a position of a second slider button within a second slider bar, wherein: the position of the second slider button within the second slider bar defines a third point along the brightness curve such that a first portion of the brightness curve positioned on one side of the third point is adjustable as the first slider button is slid within the first slider bar to produce the non-linear brightness curve or non-linear darkness curve while a second portion of the brightness curve positioned on the opposite side of the third point is unaffected as the first slider button is slid within the first slider bar.