www.gusucode.com > visionhdl 源码程序 matlab案例代码 > visionhdl/Invert.m

    function [pixOut,ctrlOut] = InvertImage(pixIn,ctrlIn)
  
  persistent invertI;
  if isempty(invertI) 
      tabledata = linspace(255,0,256);
      invertI = visionhdl.LookupTable(uint8(tabledata));
  end
    
  [pixOut,ctrlOut] = step(invertI,pixIn,ctrlIn);
end