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D
Histograms
Histograms show tone distribution, with pixel brightness (tone) plotted
on the horizontal axis and the number of pixels on the vertical axis.
Camera histograms are intended as a guide only and may differ from
those displayed in imaging applications. Some sample histograms are
shown below:
•
If the image contains objects
with a wide range of
brightnesses, the distribution of
tones will be relatively even.
•
If the image is dark, tone
distribution will be shifted to
the left.
•
If the image is bright, tone
distribution will be shifted to
the right.
Increasing exposure compensation shifts the distribution of tones to the
right, while decreasing exposure compensation shifts the distribution to
the left. Histograms can provide a rough idea of overall exposure when
bright ambient lighting makes it difficult to see pictures in the display.
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