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===Purpose===
Crop an image DataSet based on PlotGUI selection.


===Synopsis===
:xsub = cropimage(x)
:xsub = cropimage(x,fig)
:xsub = cropimage(x,range)
===Description===
Crops an image using either a selection made on a PlotGUI figure or the indices provided by the user. The first input is always (x) an image dataset object.
There are three modes for cropping:
(1) If no inputs are provided, CROPIMAGE will give a window from which the user can "Select" a region to crop to. Click on "Select", mark the region to keep, then click on "Crop" to finish the cropping.
(2) If a selection has already been made on an existing PlotGUI image, the figure number of that figure can be passed to perform an immediate crop to the selected region.
(3) A vector can be provided as (range) which gives the range of x and y pixels to use to crop the image. (range) must be in the form:
[  x_min  x_max  y_min  y_max  ]
The output (xsub) is the cropped image. The description field contains the original pixels extracted.
===See Also===
[[buildimage]], [[imageload]], [[plotgui]], [[transpose_img]]

Latest revision as of 11:44, 1 August 2019