Region Statistics Methods
Mira AP provides several ways to normalize a set of images to a common statistical value. This reference statistic is computed within some chosen rectangle. The result of normalizing is a set of images for which that statistical value agrees within that particular rectangular region.
Region Statistics Methods
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Mean |
The Mean method calculates the arithmetic average value of all pixels inside the reference region with no rejection of extreme values. This is the preferred method if the region contains only well-behaved statistical noise. |
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Mean - Min/Max Clipped |
The Min/Max Clip method removes the minimum and maximum values from calculation of the Mean. This allows for 1 extreme high value and 1 extreme low value within the region. |
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Median |
The median selects the median value from the region and rejects all other values, no matter how extreme. It is the preferred method when working with a region that does not contain only random noise about a well defined mean value. |