IMAGE CHANGES ­ BEYOND THE BASICS 179 Enhance your poorly exposed pictures IMAGE CHANGES ­ BEYOND THE BASICS Good exposure is the cornerstone of great images. No matter how good your subject is, how well you have composed the image or how brilliantly you captured the scene, if your exposure is a little astray then you will be left with a less than perfect result. This is just as true for digital im- ages as it was for traditional photographs. Overexposure leads to delicate highlight detail being recorded as pure white; underexposure on the other hand produces a picture with little detail in the shadow areas. The best way to solve these problems is to re-shoot your picture using an aperture and shutter combination that will produce a well-exposed image but, as we all know, sometimes a `re-shoot' is just not possible. So how can Photoshop Elements help us enhance our poorly exposed pictures? I have found the following techniques particularly helpful when trying to enhance, or should that be disguise, images that are suffering from bad exposure. 6.24 Screening image layers to enhance tones Suitable for Elements ­ 7.0, 6.0, 5.0, 5.0, 4.0, 3.0, 2.0, 1.0 | Difficulty level ­ Intermediate Resources ­ Web image 620 | Related Techniques ­ 6.20 | Menus used ­ Layer, Enhance