How to Use Levels and Curves commands to adjust luminance in Adobe Photoshop CS5

In this clip, you'll learn how to use the Auto Levels and Auto Curves commands to correct the luminance of an image on a channel-by-channel basis in Adobe Photoshop CS5. Whether you're new to Adobe's popular raster graphics editor or a seasoned designer looking to better acquaint yourself with the new features and functions of the latest iteration of the application, you're sure to benefit from this free software tutorial. For more information, watch this video guide.