此程序是细化光条纹的算法，主要用于在视觉测量中，对于拍摄到的光条纹进行中心提取-This program is the algorithm about thinnering the light-stripe,mainly used to eatract the center of light-stripe in vision meament

加入了绿条纹的RGB格雷码图案，可以指定格雷码位数-RGB grey code

生成四副条纹图，进行四步相移，并且进行相位解包裹，并以图片形式输出结果-Generate four fringes, were four-step phase shift and phase unwrapping, and output as a picture