Invert ROI

Short Description

Versions

• Version 1 • Released on: 2013-03-08 17:20:56
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  Description:

  initial version

  # 
  # Inverse ROI: 
  # 	replaces the current ROI by its inverse.
  # 
  from icy.main import Icy
  from icy.roi import ROI2DRectangle
  from icy.roi import ROI2D
  from icy.util import ShapeUtil
  import sys
  
  seq = Icy.getMainInterface().getFocusedSequence()
  img = Icy.getMainInterface().getFocusedImage()
  
  if seq == None:
  	sys.exit("No sequence")
  
  # Get current ROI
  roi = seq.getSelectedROI2D()
  
  if roi == None:
  	sys.exit("No selected ROI")
  
  # Create an ROI of the size of the image
  roiImage = ROI2DRectangle(img.getBounds())
  
  # Do the XOR operation
  res = ROI2D.merge([roi, roiImage], ShapeUtil.ShapeOperation.XOR)
  
  # Compute inverse by XOR operation
  seq.addROI(res)