class_docstr: Return the input data passed through an unsharp mask.
class_docstr_tok: ["Return","the","input","data","passed","through","an","unsharp","mask","."]
code: def process(self, dataIn, display=True):
      # CtrlNode has created self.ctrls, which is a dict containing {ctrlName: widget}
      sigma = self.ctrls["sigma"].value()
      strength = self.ctrls["strength"].value()
      output = dataIn - (
          strength * pg.gaussianFilter(dataIn, (sigma, sigma))
      )
      return {"dataOut": output}
  
file_path: pyqtgraph/pyqtgraph/examples/FlowchartCustomNode.py
imports: import numpy
  import pyqtgraph
  import pyqtgraph.flowchart.library
  from pyqtgraph.flowchart import Flowchart, Node
  from pyqtgraph.flowchart.library.common import CtrlNode
  from pyqtgraph.Qt import QtWidgets
label_desc: Use image node_id 2 for calling the UnsharpMaskNode obj's underlying member method code with example usage: obj.process(dataIn, display) and returns: dict