1. A method, comprising: displaying a grayscale rendering of a color image; receiving input to the displayed grayscale rendering to select an area of the grayscale rendering of the color image; determining a color characteristic of an area of the color image in response to the receiving the input to the displayed grayscale rendering, wherein the area of the color image corresponds to the selected area of the grayscale rendering; and selecting an adjuster from a plurality of adjusters based on the color characteristic of the area of the color image, wherein each adjuster in the plurality of adjusters is capable of accepting adjusting input to adjust the grayscale rendering based on a corresponding characteristic of the color image.