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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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interimage:attributes_description [2010/06/29 10:35] rsilva |
interimage:attributes_description [2010/06/29 10:40] rsilva |
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| {{ :interimage:shapeindex.png }} | {{ :interimage:shapeindex.png }} | ||
| Where P is the polygon perimeter and A is the area. | Where P is the polygon perimeter and A is the area. | ||
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| ===== Spectral Statistical Attributes ===== | ===== Spectral Statistical Attributes ===== | ||
| - | * **Amplitude** - represents the difference between the maximum and minimum pixel values of an object **O** for the given image layer **L**. | + | * **Amplitude** - represents the difference between the maximum and minimum pixel values of an object for the given image layer **L**. |
| * **Brightness** - represents the brightness of an image object. | * **Brightness** - represents the brightness of an image object. | ||
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| - | * **Ratio** - represents the amount that layer L contributes to the total brightness of an image object. | + | * **Ratio** - represents the amount that layer **L** contributes to the total brightness of an image object. |
| * **StdDeviation** - The standard deviation represents the numerical data dispersion degree surrounding the mean. It is defined by: | * **StdDeviation** - The standard deviation represents the numerical data dispersion degree surrounding the mean. It is defined by: | ||
