Adobe Camera Raw - RAW 101: Better Images with Photoshop and Photoshop Elements - page 37

sible without losing, or clipping, information. The image in Figure 2.16 is an example
of a properly exposed photo. All of the image data lies between the black end point
and white end point of the histogram.
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Figure 2.16 This image is properly exposed. All image data is contained within the histogram, which shows that no information is
being lost or “clipped” at either end of the scale.
If you view your image and see a histogram similar to the ones in Figure 2.17,
either the exposure was wrong or the dynamic range of the image was wider than the
camera was able to capture. Image information that is beyond the range the camera can
capture will be displayed as pure black or pure white.
Figure 2.17 (left) This histogram is from an image that is underexposed. Most of the data in this image is in the left side of the
histogram. Every pixel at the left edge of the histogram will be displayed as pure black. (right) The histogram for an overexposed
image. In this case, every pixel at the right edge of the histogram will be displayed as pure white without any detail.