SAMS Teach Yourself Adobe® Photoshop® CS2 in 24 Hours

Workshop

Q&A

Q1:	Levels and Curves seem to do more or less the same thing. How do I know which to use?
A1:	If the picture seems to have the right color balance (not too red, green, and so on) but is too dark or light, use Levels. If the colors aren't right, adjust the Curves for individual colors and for the RGB (full-spectrum) channel.
Q2:	I have a sepia-tinted photo (brown tones) that I have scanned into the computer, but the scan came out yellow. Is there a way to get rid of the yellow cast without losing the sepia?
A2:	The easy way is to convert it to grayscale so that you get rid of all the color. Then convert the image back to RGB. Open the Image→Adjustments→Curves dialog box. Instead of RGB on the Channels pop-up menu, select red and drag ...