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Photo Information
D
Histograms
Histograms show tone distribution. Pixel brightness (tone) is plotted on
the horizontal axis and the number of pixels on the vertical axis.
•
If the image contains objects
with a wide range of
brightnesses, the distribution of
tones will be relatively even.
•
If the image is dark, the
distribution will be shifted to
the left.
•
If the image is bright, the
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 monitor.
D
The Histogram Display
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RGB histograms show tone distribution.
•
Camera histograms may differ from those displayed in imaging
applications. Use them as a guide to actual tone distribution.
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