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