Sharpening incamera

Despite the high resolution of many modern sensors and specially developed digital lenses the captured image contains a degree of softness that is a direct result of the capturing process. To help create crisper images camera manufacturers include in-camera sharpening as one of their enhancement options. Designed to improve the crispness across the picture, these features enhance the edge of objects by increasing the difference in tones between adjacent pixels. In essence, the sharpening function boosts the contrast of the image at a pixel level. This change, when viewed from a distance, produces a noticeable increase in overall visual appearance sharpness.

Sound confusing? Well it doesn't need to be. You don't really need to worry about how the feature works, but it does pay to remember that the act of sharpening changes the pixels in your image and just like any other enhancement tool (in-camera or on-desktop), too much sharpening can destroy you picture. So select your enhancement level carefully.

I use the terms 'appearance' and 'visual sharpness' on purpose as it is important to make a distinction between the sharpness that comes from quality lenses, well focused and steadily held, and techniques used to enhance the image such as the features discussed here. After all, no

Figure 16.5 Applying a little sharpening during the save process will make your images appear crisper. Sharpening can also be applied after capture in the image editing stage.
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