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A histogram is a representation of an image derived by counting the color of each pixel. This provides a far more compact overview of the data in an image than knowing the exact value of every pixel. |
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To set color settings using a histogram, click the Histogram bar in the Options Panel. The Histogram tab will appear. In the Histogram tab, the following parameters are represented: |
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- Histogram Channel — use this option to select the color channel. You can plot either the luminance of the composite channel (RGB or Gray) or the intensity values of an individual channel.
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- Histogram Graph — this is a graph of image data. Statistical information about the intensity values of the pixels appears below the histogram. To view information about a specific point on the histogram, place the pointer on that point.
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