exclude: in, optional, type=numeric
Set this keyword to a value in the image array that is to be excluded from the
standard deviation calculation. Normally, this would be the backgroud value of
the image, if there is a background.
multiplier: in, optional, type=float, default=2.0
The standard deviation of the image pixels is computed and then
multiplied by the multiplier factor to produce upper and lower
thresholds for the linear scaling of the image by subtracting
or adding this value to the mean value of the image. The image
is linearly scaled between these two threshold values.
negative: in, optional, type=boolean
Set this keyword to return the "negative" or reverse of the image scaling.
omax: in, optional, type=byte, default=255
Normally, the image is scaled into the range of 0 to 255. Setting the
OMIN and OMAX keywords can change this scaling.
omin: in, optional, type=byte, default=0
Normally, the image is scaled into the range of 0 to 255. Setting the
OMIN and OMAX keywords can change this scaling.
threshold: out, optional, type=float
A two-element array that contains the minimum and maximum thresholds, respectively,
that were calculated for the scaling.