oiCrop

Crop the data in an optical image

  [oi,rect] = oiCrop(oi,[rect])

 Crop the data (photons) in the scene or optical image to within the
 rectangle, rect. If rect is not defined a graphical routine is
 initiated for selecting the rectangle.  The values of rect can be
 returned.

 Because these are multispectral data, we can't use the usual imcrop.
 Instead, we use vcROISelect to return the selected data.  Then we turn
 the selected data into a photon image and reset the relevant parameters
 in the scene structure.

 Example:
  newOI = sceneCrop(vcGetSelectedObject('oi'));

 Copyright ImagEval Consultants, LLC, 2003.