Canon EOS-1Ds Software Instructions EOS DIGITAL SOLUTION DISK Ver.4 for Window - Page 44
Tone Curve
UPC - 013803079265
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Processing RAW Images Tone Curve A tone curve shows the brightness and color saturation for the original image (input) and the adjusted image (output) in the form of a line graph. You can use the tone curve to adjust the image brightness and color saturation values that were set by the camera when the shot was taken. Also, by using the tone curve to adjust an image, you can tailor the image to the particular color reproduction characteristics of your monitor or printer so that you obtain the most faithful color reproduction. The tone curve adjustment options include [RGB], which adjusts the input and output for the entire image in a single operation, as well as the [Rch], [Gch] and [Bch] settings that adjust each color individually. You can use the [Tone curve settings] list box to switch between the different channels as you make your adjustments. The horizontal axis shows the brightness and color saturation for the unadjusted (input) image, with the left-hand end indicating shadow (darker areas of the image) and the right-hand end indicating highlights (brighter areas of the image). The vertical axis shows the brightness and color saturation for the adjusted (output) image, with the lower end indicating shadow and the upper end indicating highlights. 3-24