XMM-Newton Science Analysis System


imgrad (tools-1.67) [xmmsas_20160201_1833-15.0.0]

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Parameters

This section documents the parameters recognized by this task (if any).

Parameter	Mand	Type	Default	Constraints
imageset	yes	dataset	dummy_default
The input image dataset.
outputstyle	no	type	cartesian	cartesian|polar
This controls the style of the output. If outputstyle=`cartesian', the two output images store the x and y components of the gradient; if outputstyle=`polar', the two output images store the magnitude and azimuth of the gradient.
xgradimageset	no	dataset	xgrad_image.ds
If outputstyle=`cartesian', this dataset is used to store the x component of the gradient.
ygradimageset	no	dataset	ygrad_image.ds
If outputstyle=`cartesian', this dataset is used to store the y component of the gradient.
gradsizeimageset	no	dataset	grad_size_image.ds
If outputstyle=`polar', this dataset is used to store the magnitude of the gradient.
gradazimuthimageset	no	dataset	grad_azim_image.ds
If outputstyle=`polar', this dataset is used to store the azimuth (from 0 to $\pi$) of the gradient.
Parameter	Mand	Type	Default	Constraints