Fix exposure errors

Fix over- or under-exposed images by adjusting their levels to create healthier looking histograms

In chapter 2 we showed how Photoshop Elements' automatic enhancement commands enable you to fix exposure problems with a click. Commands such as Auto Levels work their tone-tweaking magic by reading and adjusting a photograph's histogram. A histogram is an undulating graph that shows the spread and strength of the shadows, midtones and highlights in a particular shot (much like a medical chart can tell a doctor about the health of a patient). The histogram of a correctly exposed photo will display a graph that spreads from the far left (where the shadows are represented) to the far right (where the highlights are represented). The concept of histograms may sound a bit daunting, but they're the key to overcoming exposure-related problems. We explain how to read histograms below, and then…

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Teach Yourself Photoshop Elements (Digital) - 1 Issue, Teach Yourself Photoshop Elements 2

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