adjustment value has been received control continues to step s 160 otherwise control continues to step s 170 in step s 160 the brightness adjustment is performed and control continues to step s 170 in step s 170 the image processing tone reproduction curve is determined based on the system tone reproduction curve and the iot e g a printer tone reproduction curve as discussed in attorney docket no 105423 and any adjustment as discussed in co pending attorney docket no 105425 filed herewith and incorporated herein by reference in its entirety next in step s 180 the image processing tone reproduction curve is forwarded to the image processing system control then continues to step s 190 where the control sequence ends fig1 illustrates in greater detail the contrast adjustment step s 140 of fig1 in particular control begins in step s 200 and continues to step s 210 in step s 210 an initial contrast tone reproduction curve is determined next in step s 220 the initial contrast tone reproduction curve is adjusted based on received contrast values then in step s 230 the adjusted tone reproduction curve is smoothed control then continues to step s 240 in step s 240 the smoothed.